US2847027A - Mixing, distributing and volume controlling valve - Google Patents

Mixing, distributing and volume controlling valve Download PDF

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US2847027A
US2847027A US418028A US41802854A US2847027A US 2847027 A US2847027 A US 2847027A US 418028 A US418028 A US 418028A US 41802854 A US41802854 A US 41802854A US 2847027 A US2847027 A US 2847027A
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piston
valve
distributing
handle
mixing
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US418028A
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Daniel F Kumpman
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/14—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle
    • F16K11/18—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle with separate operating movements for separate closure members
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/6851—With casing, support, protector or static constructional installations
    • Y10T137/6966—Static constructional installations
    • Y10T137/6969—Buildings
    • Y10T137/6977—Escutcheon type support
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86549—Selective reciprocation or rotation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87056—With selective motion for plural valve actuator
    • Y10T137/87072—Rotation about either of two pivotal axes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87249—Multiple inlet with multiple outlet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/877—With flow control means for branched passages
    • Y10T137/87708—With common valve operator
    • Y10T137/87748—Pivoted or rotary motion converted to reciprocating valve head motion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20012—Multiple controlled elements

Definitions

  • the invention is particularly useful in connection with overhead shower and tub, and anV important feature of the invention is the accomplishm'ent of all three functions, that is, the proportioning of hot and cold water,the directing of ilow to shower or tub and the regulating of volume of flow, by a single, easily adjusted handle which will show by its position just what adjustments are in eiect.
  • Fig. l in the drawings is a front elevation of a combination tub and shower form of the invention
  • Fig. 2 is a broken vertical sectional view on substantially the plane of line 2 2 of Fig. 1;
  • Fig. 3 is a horizontal sectional view on substantially the plane of line 3 3 of Fig. 2;
  • Fig. 4 is a cross sectional detail on substantially the plane of line 4 4 of Fig. 2;
  • Figs. 5 and 6 are similar views on substantially the planes of lines 5 5 and 6 6, respectively, of Fig. 2.
  • the body of the valve is designated 7, this being shown as a relatively simple, straight tubular member, suitable for a single hole mounting in a supporting structure such as indicated at 8.
  • valve is shown secured in this relation by two screws 9 extended through a face plate 10 at the front of the structure into lugsv11 projecting from the top and bottom of the valve body at the back of the support.
  • the tubular valve body has a main bore 12 opening out through the front of the same and a smaller, concentric bore 13 at the back, the latter having upwardly and downwardly opening ports 14, 15 for communication with piping 16, 17 leading to the shower head and tub, respectively.
  • a diverter 1S in the form of a loose cylindrical shell is rotatably disposed in the smaller bore or chamber 13, this sleeve or shell having an approximately 100 angle cut-out 19, Fig. 5, in one side to afford full ow to one of the ports 14, 15 while closing off the other.
  • the front end of the diverter chamber 13 is shown as faced 01T as an annular valve seat 20.
  • a piston-like valve stem 21' Slidably and rotatably tted Within the main bore or cylindrical chamber 12 is a piston-like valve stem 21' hollowed out at the inner end, at 22, Fig. 2, and having'a segmental port 23 opening into this hollowed portion for cooperation with the oppositely disposed hot and cold water inlet ports 24, 25 in the sides of the valve casing.
  • the hollow inner endV portion of the piston element isv shown as having side ports 26 opening into an enlargement 27 at the inner end of the main bore to pass the mixture of liquids governed and admitted by the piston valve, to the valve seat 20 and by way of the diverter 18, either upwardly to the shower or downwardly to the tub.
  • Thev diverter is positioned by rotation of the piston element, the latter being shown in Figs. 2 and 3 as having a ⁇ rearwardly projecting stem 28 fixed thereto by screw pin 29, said stem projecting longitudinally through the diverter sleeve and into a guide socket 30 at the back, and carrying in that portion disposed within thev sleeve a' key'lug 31 extending radially into the wide angle openv ing 19 in the sleeve.
  • This construction provides a loose key connection between the sliding and rotating piston' element and by means of which the diverter may be turned as far as need be to cut off tub or shower and left in that relation while the pistonl may be turned tov vary the proportions of hot and cold water.
  • a valve element 32 is shown mounted on the inner end of the piston for engagement with valve seat 20 when the piston is shifted all the Way in the valve body,
  • the piston is sealed against any leakage at the front, by a ring 33 of compressible packing set in an annular groove 34 inthe piston and backed up by an annular expansion spring 35.
  • control piston The sliding and turning movements of the control piston are effected in the illustration by means of a handle 36 having a yoke 37 embracing and engaged in grooves 38 in cylindrical crank discs 39 rotatably seated in bearings 40 in opposite sides of a head or cover 41 disposed over the outer end of the piston.
  • This head 41 is shown as chambered at 42 to slidingly receive the outer end of the piston and as rotatably supported but held against longitudinal movement by having spaced anges 43, 44 at the inner end engaged by an intermediate flange 45 on a supporting collar 46 screwed over the outer end of the valve body and held normally against rotation by friction ring or other such means 47.
  • the front end of the piston element is shown is tlattened and reduced at 48 and as extending through a correspondingly shaped opening 49 in the bearing member 41, into transversely cylindrical bearing 40, Where it is provided with an inclined, parallel sided cam slot 50.
  • crankl connection between this slotted outer end of the piston and the crank discs 39 is provided in the illustration by a short pin having rounded ends 51 engaged in crank sockets 52 in the inner faces of the discs, and a iiattened intermediate portion 53 slidably engaged in the slot 50.
  • the mounting and connection of the operating handle directly over the end of the sliding and rotating piston provides a particularly compact, attractive and easy to operate control.
  • the requisite motions of the handle are simple and more or less instinctive.
  • the handle is rotated upwardly or downwardlyvfor shower or tub, this placing the diverter 18 in position for directing the water up through piping 16 or downward -through piping 17.
  • Proportions of hot to cold water may be varied by turning the handle more or less to left or right, and volume may be determined by rocking the handle inwardly to open the valve ports, as in Fig. 2, or by rocking the handle outwardly to par-tly or completely close the valve ports and inner valve seat by inward movement of the piston element, Fig. 3.
  • the spring tensioned packing 33 provides complete seal of the piston element in all its rotating and sliding movements and positions, and the crank and sliding cam connection between the handle and piston provides smooth, easy action between these parts and the retaining of them in their various positions of adjustment.
  • the construction consists of relatively few parts, and these all of simple, rugged structure. The structure is such that it can be produced and installed at reasonably low cost.
  • a proportioning and volume controlling valve comprising the combination of a valve body having a longitudinally extending cylindrical bore provided with inlet ports in opposite sides and a piston rotatably and longitudinally slidably adjustable in said bore and ported circumferentially in line with said inlet ports for cooperation with said inlet ports in the rotary and longitudinal adjustments of said piston, a cap mounted in freely rotatable longitudinally xed relation over the outer end of said valve body, said piston having an angular cross section outer end portion projecting into said cap and provided with a cam slot, a handle having crank discs fulcrumed in the outer end of said cap at opposite sides of the angular end extension of the piston on an axis transverse to the longitudinal axis of the piston and in rotary sliding engagement with opposite sides of said angular end extension for clecting rotary adjustments of said piston by turning movements of said handle about the axis of said cylindrical bore and a crank pin carried by said crank discs and engaged in said cam slot for effecting longitudinal sliding movements of said piston by rotary movements

Description

Aug. 12, 1958 D. F. KUMPMAN MIXING, DISTRIBUTING AND VOLUME CONTROLLING VALVE Filed March 23. 1954 2 Sheets-Sheet 1 FIG.I
HOT
7///// l lll/ILA" sHowE`R +5 lll/ll al? INVENTOR. DANIEL F. KUMPMAN IO BY i r l l!) i i n l TUB TTORNEY.
U8- 12, 1953 D. F. KUMPMAN 2,847,027
MIXING, DISTRIBUTING AND VOLUME CONTROLLING VALVE Filed March 25, 19554 l 2 Sheets-Sheet 2 ,E 3| B726 A, 46 43 37 54 3a 3o I l l2 a l 424 9 f:19
I I '\"\l` 5| 23 mi O 33 3l 5g 53 4| INVENTOR.
DANIEL F. KUMPMAN ATTORNEY mmm.
United States Patent() MIXING, DISTRIBUTING VOLUME CONTROLLIN G VALVE Daniel F. Kumpm'an, Dover, N. J.
Application 'March 23,1954, Serial N o. 418,028
'1 Claim. (Cl. 1`37 597) The invention herein disclosed is a combination valve fo'r mixing, distributing andcontrolling volume.
As a practical example, the invention is particularly useful in connection with overhead shower and tub, and anV important feature of the invention is the accomplishm'ent of all three functions, that is, the proportioning of hot and cold water,the directing of ilow to shower or tub and the regulating of volume of flow, by a single, easily adjusted handle which will show by its position just what adjustments are in eiect.
-Objects of the invention are to provide a combination valve of this character which will be entirely practical and effective, which can be produced at reasonable cost, which will be of compact, rugged structure and Which while easy to operate for all its functions, will be packed against leaking in any of its positionsy or adjustments.
Other desirable objects and the novel features through which the purposes of the invention are attained are set forth or will appear in the course of the following specication.
The drawings accompanying and forming part of the specication illustrate a present approved form of the invention. Structure, however, may be modied and changed as regardsl the immediate illustration, all within the true intent and scope of the invention as hereinafter defined and claimed.
Fig. l in the drawings is a front elevation of a combination tub and shower form of the invention;
Fig. 2 is a broken vertical sectional view on substantially the plane of line 2 2 of Fig. 1;
Fig. 3 is a horizontal sectional view on substantially the plane of line 3 3 of Fig. 2;
Fig. 4 is a cross sectional detail on substantially the plane of line 4 4 of Fig. 2;
Figs. 5 and 6 are similar views on substantially the planes of lines 5 5 and 6 6, respectively, of Fig. 2.
In the several views the body of the valve is designated 7, this being shown as a relatively simple, straight tubular member, suitable for a single hole mounting in a supporting structure such as indicated at 8.
The valve is shown secured in this relation by two screws 9 extended through a face plate 10 at the front of the structure into lugsv11 projecting from the top and bottom of the valve body at the back of the support.
The tubular valve body has a main bore 12 opening out through the front of the same and a smaller, concentric bore 13 at the back, the latter having upwardly and downwardly opening ports 14, 15 for communication with piping 16, 17 leading to the shower head and tub, respectively.
A diverter 1S in the form of a loose cylindrical shell is rotatably disposed in the smaller bore or chamber 13, this sleeve or shell having an approximately 100 angle cut-out 19, Fig. 5, in one side to afford full ow to one of the ports 14, 15 while closing off the other.
The front end of the diverter chamber 13 is shown as faced 01T as an annular valve seat 20.
ICC
Slidably and rotatably tted Within the main bore or cylindrical chamber 12 is a piston-like valve stem 21' hollowed out at the inner end, at 22, Fig. 2, and having'a segmental port 23 opening into this hollowed portion for cooperation with the oppositely disposed hot and cold water inlet ports 24, 25 in the sides of the valve casing.
From Fig. 4 it will be clear that rotary movements of the piston element 21 willcarry the" segmental port 23 therein into more or less registry with onel orV the other of the hot and cold water inlet ports 24, 25, and that longitudinal movements of this element, Fig. 3, Will more or less open or close these ports to regulate volume;
The hollow inner endV portion of the piston element isv shown as having side ports 26 opening into an enlargement 27 at the inner end of the main bore to pass the mixture of liquids governed and admitted by the piston valve, to the valve seat 20 and by way of the diverter 18, either upwardly to the shower or downwardly to the tub.
Thev diverter is positioned by rotation of the piston element, the latter being shown in Figs. 2 and 3 as having a` rearwardly projecting stem 28 fixed thereto by screw pin 29, said stem projecting longitudinally through the diverter sleeve and into a guide socket 30 at the back, and carrying in that portion disposed within thev sleeve a' key'lug 31 extending radially into the wide angle openv ing 19 in the sleeve.
This construction provides a loose key connection between the sliding and rotating piston' element and by means of which the diverter may be turned as far as need be to cut off tub or shower and left in that relation while the pistonl may be turned tov vary the proportions of hot and cold water. i
A valve element 32 is shown mounted on the inner end of the piston for engagement with valve seat 20 when the piston is shifted all the Way in the valve body,
thusf to seal off any flow or leakage to the diverter and n piping leading to the shower and tub.
The piston is sealed against any leakage at the front, by a ring 33 of compressible packing set in an annular groove 34 inthe piston and backed up by an annular expansion spring 35.
This special packing will ride back and forth with the piston and rotate therewith without losing its sealing effect in either or both these movements.
The sliding and turning movements of the control piston are effected in the illustration by means of a handle 36 having a yoke 37 embracing and engaged in grooves 38 in cylindrical crank discs 39 rotatably seated in bearings 40 in opposite sides of a head or cover 41 disposed over the outer end of the piston.
This head 41 is shown as chambered at 42 to slidingly receive the outer end of the piston and as rotatably supported but held against longitudinal movement by having spaced anges 43, 44 at the inner end engaged by an intermediate flange 45 on a supporting collar 46 screwed over the outer end of the valve body and held normally against rotation by friction ring or other such means 47.
The front end of the piston element is shown is tlattened and reduced at 48 and as extending through a correspondingly shaped opening 49 in the bearing member 41, into transversely cylindrical bearing 40, Where it is provided with an inclined, parallel sided cam slot 50.
The crankl connection between this slotted outer end of the piston and the crank discs 39 is provided in the illustration by a short pin having rounded ends 51 engaged in crank sockets 52 in the inner faces of the discs, and a iiattened intermediate portion 53 slidably engaged in the slot 50.
The side arms of the yoke 37 are shown secured to the crank `discs by screws 54,
It will be apparent from Figs. 2 and 3 that rocking the handle 36 outwardly on the crank discs 39 will, through the sliding crank pin connection with the piston, slide the piston inwardly to throttle the hot and cold water inlet ports 24, 25, and after closing these ports, to close valve element 32 at the inner end of the piston against the outlet valve seat 20. Motion of the handle in the opposite direction will have the effect of drawing the piston outwardly to open outlet valve seat 2) and open up the hot and cold water inlets 24, 25.
The mounting and connection of the operating handle directly over the end of the sliding and rotating piston provides a particularly compact, attractive and easy to operate control. The requisite motions of the handle are simple and more or less instinctive. As Viewed in Fig. 1, the handle is rotated upwardly or downwardlyvfor shower or tub, this placing the diverter 18 in position for directing the water up through piping 16 or downward -through piping 17. Proportions of hot to cold water may be varied by turning the handle more or less to left or right, and volume may be determined by rocking the handle inwardly to open the valve ports, as in Fig. 2, or by rocking the handle outwardly to par-tly or completely close the valve ports and inner valve seat by inward movement of the piston element, Fig. 3.
The spring tensioned packing 33 provides complete seal of the piston element in all its rotating and sliding movements and positions, and the crank and sliding cam connection between the handle and piston provides smooth, easy action between these parts and the retaining of them in their various positions of adjustment. The construction consists of relatively few parts, and these all of simple, rugged structure. The structure is such that it can be produced and installed at reasonably low cost.
What is claimed is:
A proportioning and volume controlling valve comprising the combination of a valve body having a longitudinally extending cylindrical bore provided with inlet ports in opposite sides and a piston rotatably and longitudinally slidably adjustable in said bore and ported circumferentially in line with said inlet ports for cooperation with said inlet ports in the rotary and longitudinal adjustments of said piston, a cap mounted in freely rotatable longitudinally xed relation over the outer end of said valve body, said piston having an angular cross section outer end portion projecting into said cap and provided with a cam slot, a handle having crank discs fulcrumed in the outer end of said cap at opposite sides of the angular end extension of the piston on an axis transverse to the longitudinal axis of the piston and in rotary sliding engagement with opposite sides of said angular end extension for clecting rotary adjustments of said piston by turning movements of said handle about the axis of said cylindrical bore and a crank pin carried by said crank discs and engaged in said cam slot for effecting longitudinal sliding movements of said piston by rotary movements of said handle about the fulcrum axis of said` crank discs, said valve body having a reduced cylindrical chamber at the inner end of the cylindrical bore, provided with outlet ports at opposite sides, a tubular diverter rotatably adjustable in said chamber having a wide slot therein registrable with said outlet ports and a stem projecting from the inner end of said piston through said diverter and having a transverse key projecting into said slot in the diverter and providing lost motion connection between the piston and diverter.
References Cited in the file of this patent UNITED STATES PATENTS 1,693,758 Hennessey Dec. 4, 1928 1,917,639 Evans July 11, 1933 1,943,865 Hennessey Jan. 16, 1934 2,318,757 Christenson May 11, 1943 2,556,780 Shryock June 12, 1951 2,596,464 Bauberger May 13, 1952 2,661,925 Barkelew Dec. 8, 1953 FOREGN PATENTS 834,694 France Aug. 29, 1938
US418028A 1954-03-23 1954-03-23 Mixing, distributing and volume controlling valve Expired - Lifetime US2847027A (en)

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Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2924243A (en) * 1956-11-28 1960-02-09 Cordova Jose Juan Multiple mixing and distribution valves
US2978917A (en) * 1956-10-01 1961-04-11 Alfred M Moen Handle and valve stem connection for mixing faucet
US3016929A (en) * 1958-02-12 1962-01-16 Kenco Products Corp Filling mechanism for glasses
US3117649A (en) * 1962-11-19 1964-01-14 Clarence C Parton Single handed triple control for automotive vehicles
US3130750A (en) * 1958-11-25 1964-04-28 Fritz W Post Distributing valve
US3168112A (en) * 1964-01-23 1965-02-02 Hughlin E Klingler Temperature mixing and diverting valve for domestic plumbing fixtures
US3287985A (en) * 1964-11-05 1966-11-29 Alfred M Moen Cartridge swing spout faucet and improvements thereon
US3414018A (en) * 1966-12-08 1968-12-03 Carl A. Eversman Mixing and diverter valve assembly
US3592219A (en) * 1969-05-05 1971-07-13 Tomlinson Ind Inc Cam-operated valve with scraping vanes
US3643697A (en) * 1969-02-10 1972-02-22 Aaron A Staat Mixing valve structure
US3929161A (en) * 1973-08-22 1975-12-30 Uni Mist Spool valve for multiple adjustable systems
US3943970A (en) * 1973-05-11 1976-03-16 Alfons Knapp Single control mixing valve with an auxiliary member carrying the sealing seat
US4628962A (en) * 1986-01-06 1986-12-16 United States Brass Corporation Tub-shower diverter valve
US4706709A (en) * 1985-03-16 1987-11-17 American Standard Inc. Mixing valve assembly
US4979530A (en) * 1987-12-24 1990-12-25 Ameri-Can Brass Faucet Inc. Modular valve assembly
US5388287A (en) * 1993-07-12 1995-02-14 Ecowater Systems, Inc. Countertop faucet assembly
US6357476B1 (en) * 2000-05-12 2002-03-19 Project Service S.R.L. Hot and cold water mixing/distributing valve with three or more outlets
US6637048B1 (en) * 1999-03-26 2003-10-28 Hansgrohe Ag Sanitary fitting
US20070080171A1 (en) * 2003-01-21 2007-04-12 Basf Corporation Method and apparatus for applying a foam layer
US7886762B1 (en) * 2006-06-14 2011-02-15 CWC Services, Inc. Method and apparatus for plumbing a tub and shower
US20110100491A1 (en) * 2008-06-05 2011-05-05 Zhirkevich Vasiliy Yul Evich Mixer tap for a thermal wave massage device
US20170211710A1 (en) * 2016-01-22 2017-07-27 Proserv Operations, Inc. Non-interflow directional control valve
US10584561B2 (en) 2014-01-03 2020-03-10 Proserv Operations, Inc. Dirty fluid pressure regulator and control valve
US10591076B2 (en) 2016-09-15 2020-03-17 Proserv Operations, Inc. Low friction hydraulic circuit control components
US10633951B2 (en) 2017-09-22 2020-04-28 Proserv Operations, Inc. Pressure regulator with user selectable dampening
US10670155B2 (en) 2015-10-05 2020-06-02 Proserv Gilmore Valve Llc Latching poppet valve
US10739796B2 (en) 2017-09-22 2020-08-11 Proserv Gilmore Valve Llc Pressure regulator with reconfigurable hydraulic dampening
US11022226B2 (en) 2018-03-20 2021-06-01 Proserv Operations, Inc. Microfluidic valve
US11054050B2 (en) 2018-08-13 2021-07-06 Proserv Operations Inc. Valve with press-fit insert
US11208789B2 (en) * 2017-08-24 2021-12-28 Oblamatik Ag Adjustable water outlet
US11209096B2 (en) 2018-11-19 2021-12-28 Proserv Operations, Inc. Bilateral and throttling directional control valve
US11261982B2 (en) 2019-06-27 2022-03-01 Proserv Gilmore Valve Llc Pressure relief valve with bi-directional seat
US11828370B2 (en) 2020-01-02 2023-11-28 Proserv Gilmore Valve Llc Check valve with conforming seat

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1693758A (en) * 1925-07-27 1928-12-04 Vincent D Hennessey Combination mixing valve
US1917639A (en) * 1932-12-24 1933-07-11 Dora B Evans Pump piston
US1943865A (en) * 1928-04-02 1934-01-16 Vincent D Hennessey Mixing valve
FR834694A (en) * 1938-03-03 1938-11-29 Water tap system
US2318757A (en) * 1940-03-05 1943-05-11 Johns Manville Packing
US2556780A (en) * 1948-01-10 1951-06-12 John M Shryock Mixing valve
US2596464A (en) * 1947-03-21 1952-05-13 Charles W Bauberger Hot and cold water mixing faucet with single handle
US2661925A (en) * 1948-02-28 1953-12-08 Richard C Barkelew Sealing means for fluid valves

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1693758A (en) * 1925-07-27 1928-12-04 Vincent D Hennessey Combination mixing valve
US1943865A (en) * 1928-04-02 1934-01-16 Vincent D Hennessey Mixing valve
US1917639A (en) * 1932-12-24 1933-07-11 Dora B Evans Pump piston
FR834694A (en) * 1938-03-03 1938-11-29 Water tap system
US2318757A (en) * 1940-03-05 1943-05-11 Johns Manville Packing
US2596464A (en) * 1947-03-21 1952-05-13 Charles W Bauberger Hot and cold water mixing faucet with single handle
US2556780A (en) * 1948-01-10 1951-06-12 John M Shryock Mixing valve
US2661925A (en) * 1948-02-28 1953-12-08 Richard C Barkelew Sealing means for fluid valves

Cited By (37)

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