US1686310A - Slush-pump manifold - Google Patents

Slush-pump manifold Download PDF

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US1686310A
US1686310A US270080A US27008028A US1686310A US 1686310 A US1686310 A US 1686310A US 270080 A US270080 A US 270080A US 27008028 A US27008028 A US 27008028A US 1686310 A US1686310 A US 1686310A
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valve
tapered
manifold
slush
seats
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US270080A
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Edward M Beebe
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/04Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
    • F16K11/044Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/02Check valves with guided rigid valve members
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/2496Self-proportioning or correlating systems
    • Y10T137/2559Self-controlled branched flow systems
    • Y10T137/2564Plural inflows
    • Y10T137/2567Alternate or successive inflows
    • Y10T137/2569Control by depletion of source
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/7722Line condition change responsive valves
    • Y10T137/7837Direct response valves [i.e., check valve type]
    • Y10T137/7866Plural seating

Definitions

  • My invention relates to improvement in slush pump manifolds, particularly applicable for use in drilling oil and gas wells with what is known as rotary drills.
  • FIG. 1 is a sectional view showing a part v of the double valve member broken away;
  • Fig. 2 is an elevational view the doublevalve with hydraulic packing removed;
  • Fig. 3- is an elevational view showing the device attached to the discharge of two pumps.
  • one of the essentials is a continuous and interrupted flow of water under pressure.
  • TlllS water is forced through the pipe and In the drilling of a well by a rotary drillmg outfit where two alternating pumps are hose down the well throu' 'h a rotating-shaft a to the rotating drill an out at the drill point into the casing whence it and the loose material produced by the drillin is carried to the surface and emptied into 51c basin or pond. The sediment settles, the water clears and is again ready for use in another cycle .of operation. If an interruption in this process occurs the well or hole is exposed to much danger from caving in, closing up, and the like. All of these. and other disadvantages are obviated by my invention.
  • valve seats contain a less number of parts and will cost lessin manufacture and installation and take less time in installing and removing and the machined seat being in one piece Wlll be stronger and less liable to get out of order.
  • Said flanged valve seats 14 and 15 are preferably machined on their inside surfaces and taper from points 26 adjacent said shoulders 24 and 25 diminishing outwardlyrespectively therefrom to points 27, from said points 27 outwardly to their respective ends 28 and 29 they are standardly threaded 30 and 31. To these threaded end portions. are connected pipes 32 and 33 connecting with slush pumps .34 and 35.
  • I also provide a double plug valve 36 sub- I I stantially barrel-shaped, being formed of one 40 piece of metal, preferably of steel
  • the end portions 37 and 38 from points 39 and 40 from approximately the distance of one third of thelength of said member from each end to points 42 and 43 are tapered 44 and 45 diminishing from said points 39 and 40 respectively to points 42 and 43.
  • Intermediate said points 39 and 42 and 40 and 43 I provide channels 46 and 47 encircling said barrelshaped member the inner portions of said channels 46 and 47 being hollowed out internallyon each side'from their respective peripheries as indicated by dotted-1n portions 48, 49 and 50, 51 for receiving and securely holding hydraulic packings 52 and 53.
  • I also provide frustum-shaped hydraulic packings 52 and 53 for insertion within said channels 46 and 47 the wider dimension 54 thereof being adapted tobe inserted against the inner surfaces of said channels, and are intended to entirely fill said channels including their wider dimensions as shown by said dotted-in portions 48, 49 and 50, 51.
  • Said hydraulic packing members 52 and 53 are intended to extend slightly beyond the tapered surfaces 44 and 45 but not as far as points 39 and 40 thrown into operation.
  • Any suitable hydraulic packing may be used. But I prefer to use a good grade of packing for such purpose.
  • a slush pump double plu valve of the class described comprising a barrel-shaped member having a central cylindrical portion, and having a portion between each of its ends and said central cylindrical portion oppositely tapered, each of said tapered portions'having a channel therearound for receiving hydraulic packing for respectively seatin removably in valve seats, hydraulic pac ng suitably fitting said channels and co-operating with said valve-seats, flanged valve seats being adapted to co-operate with a manifold, and to fit one at a time the tapering ends of said valve, said valve being adapted for lon itudinal movement in said manifold and or closing the bore in one of said valve seats and permitting the other to remain open.
  • a device of the class described comprising valve seat members adapted for connecting to each end of a manifold, said seats each having a tapered central bore for receiving one end at a time of a double plug valve, each of said seats having an outwardly extending bore standardly threaded for pipe connec-' tions, a double plug valve substantially of a barrel-shaped form, eachend being tapered for fitting said valve seats, each tapered end having a channel therearound for holding a hydraulic packing, hydraulic packing members being adapted for seating in each of said channels and for fitting in said valve seats.
  • a device of the class described comprising valve seats having flanged ends adapted for fastening to similar ends of a manifold, said valve seats having tapered bores open ing into said manifold and standardly threaded bores for pipe connections, a double plu valve adapted to fit in said manifold and for longitudinal movement therein, having frusto-conical tapered ends for removably itting one of said valve seats at a time, each of said tapered ends having intermediate its end a channel therearound for holding hydraulic packing, a hydraulic packing being adapted for positioning in said-channels, said end valve and said hydraulic packing being adapted for fitting and closing said valve seats.
  • a device of the class described comprising valve seat members having flanges adj acent one end for fastening to correspondingly flanged ends of a manifold, fastening means for holding them securely together, said valve seats having a tapered bore diminishing from the end adjacent the flange to a point substantially midway the length of said member, and having an opening extending therefrom bein standardly threaded for pipe connection, a ouble plug valve being substantially barrel-shaped having its ends slightly tapered diminishing from its cen- [ill 5.
  • said en s having channels therearound for holding hydraulic packing, said valve ends being adapted for fitting and closing and opening said valve seats, said double plug valve being adapted for longitudinal movement in said manifold.
  • valve seat members having flanges adjacent one end for fastening to corespondingly flanged ends of a manifold, fastening means for holding them securely together, said valve seats having a tapered bore diminishing from the end adjacent the flange to a point substantially midway the length of said member and,
  • a double plug valve being substantially bar-' rel-sliaped having its ends slightly ta ered diminishing from its central third portion to each respective end, said tapered portion having intermediate its ends a channel therearound, said channel having a narrowed outer peripheral opening, said openingbecom- I ing wider as it recedes inwardly and being adapted for receiving a hydraulic packing, hydraulic packing for seating in said inwardly widenin channels, said valve portions being adapted for seating in said valve seats.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Valve Housings (AREA)

Description

Oct. 2, 1928. 1,686,310
E. M. BEEBE S LUSH PUMP MANIFOLD 7 Z 52 h K /5 3 FIG. 3.
@Mx/w INVENTOR.
ATTORNEYS.
Patented Oct. 2,1928.
EDW M. BEEBE, OF CUSHING, OKL "x SLUSH-LPUMP MANIFOLD.
Application filed April 14, 1928. Serial No. 270,080.
My invention relates to improvement in slush pump manifolds, particularly applicable for use in drilling oil and gas wells with what is known as rotary drills.
5 The objects of my invention are to produce a device of the class described which will be new, simple, novel, inexpensive, practical,
efiicient and of utility; which will automatically permit the shifting of one pump to another in. the job in drilling with a rotary drillingoutfit; which will prevent the necessity of the use of two .or more expensive valves in connection with the drilling of such drilling outfit; which will be stron durable and which will not easily get cgnt 0 order; which tached and changed; which will eliminate the use of gates now required in such drilling; which will include a double valve having both ends the same edge of which is adapted to fit into the valve seat another valve is introduced into the end adjacent the respective seat therefor; which eliminates a large number of parts required in former slush pump manifolds; which eliminates the valve seat shown in a separate piece at Figure 3 of the drawing in my former application for patent for improvement in slush manifolds, filed December 14, 1927 under Serial Number 239,- 851; which eliminates the several separate parts of the double valve shown in Fig. 4 of said application just described making in stead of them the double valve of one piece of metal each end of which is adapted to receive there surrounding a packing substance 'for contacting the respective valve seats; which rovide standard ipe threading for the en s of the flanges or connection for other parts of the mechanism.
My invention consists of the novel features, construction and combination of parts hereinafter more, fully described, illustrated in the accompanying onessheet drawing, and pointed out in the appended claims; it being understood, however, that various changes [may be made in the form, proportion, size, shape, weight and minor details of construcvtion, within the scope of my invention with-v out departing from the spirit and principle vantages thereof. 1
. The invention and novel featureswill be: further shownin the accompanying drawing,
"of which,
is easily applied and attached and easily deof the 1nvention,'or sacrificing any of the ad- Figure 1 is a sectional view showing a part v of the double valve member broken away; Fig. 2 is an elevational view the doublevalve with hydraulic packing removed; Fig. 3- is an elevational view showing the device attached to the discharge of two pumps.
. Like characters of reference designate like parts in all the figures.
used, one of the essentials is a continuous and interrupted flow of water under pressure. TlllS water is forced through the pipe and In the drilling of a well by a rotary drillmg outfit where two alternating pumps are hose down the well throu' 'h a rotating-shaft a to the rotating drill an out at the drill point into the casing whence it and the loose material produced by the drillin is carried to the surface and emptied into 51c basin or pond. The sediment settles, the water clears and is again ready for use in another cycle .of operation. If an interruption in this process occurs the well or hole is exposed to much danger from caving in, closing up, and the like. All of these. and other disadvantages are obviated by my invention. .011 December 14, 1927, under Serial Number 239,- 851, I filed an application for patent under an improvement in slush pump manifolds. I desire this application to be considered as an improvement over and in connection with said application. I claim an improvement over said former application in that the valve seats contain a less number of parts and will cost lessin manufacture and installation and take less time in installing and removing and the machined seat being in one piece Wlll be stronger and less liable to get out of order.
I also claim the double valve in this applithat the hydraulic packing is better posi- 'tioned, more substantial, more lasting and much less liable to become loose and removed and get out of order.
I desire to have the drawing and these specifications to be considered as illustrative I provide a longitudinal cylindrical body and not restrictive only. One embodiment of my invention may be described as follows 1 having a central upstanding flange 2 being L-shaped, having a central bore 3 and having an L-shaped flanged member 4 thereabove for forming with said first flange 2 a union. Both of said members having conjugate perforations 5 and 6 and being adapted to be securely held together by bolts and nuts 7 and 8; said upper flange member 4 having a central bore 9 with its upper portion having standard threads 10 for seating a stand-pipe 11 thereabove. On each end of body member 1 is provided an L- shaped union 12, 13, being adapted to fit L-shaped flanged valve seat members 14 and 15, said flanged member 12 and said valve seat member 14 having conjugate perforations 16 and 17 therein for securely holding together by bolts and nuts 18 and 19 and said flanged member 13 and said valve seat member 15 having conjugate perforations 20 and 21' therein for securely holding them together by bolts and nuts 22 and 23. I prefer to have between said flanged portions 12 and 14, and said portions 13 and 15 cylindrical shoulders 24 and 25 for more securely holding saidmembers together.
I also prefer to have similar shoulders 24" and 25? between flanged members 2 and 4.
Said flanged valve seats 14 and 15 are preferably machined on their inside surfaces and taper from points 26 adjacent said shoulders 24 and 25 diminishing outwardlyrespectively therefrom to points 27, from said points 27 outwardly to their respective ends 28 and 29 they are standardly threaded 30 and 31. To these threaded end portions. are connected pipes 32 and 33 connecting with slush pumps .34 and 35.
I also provide a double plug valve 36 sub- I I stantially barrel-shaped, being formed of one 40 piece of metal, preferably of steel The end portions 37 and 38 from points 39 and 40 from approximately the distance of one third of thelength of said member from each end to points 42 and 43 are tapered 44 and 45 diminishing from said points 39 and 40 respectively to points 42 and 43. Intermediate said points 39 and 42 and 40 and 43 I provide channels 46 and 47 encircling said barrelshaped member the inner portions of said channels 46 and 47 being hollowed out internallyon each side'from their respective peripheries as indicated by dotted- 1n portions 48, 49 and 50, 51 for receiving and securely holding hydraulic packings 52 and 53. I also provide frustum-shaped hydraulic packings 52 and 53 for insertion within said channels 46 and 47 the wider dimension 54 thereof being adapted tobe inserted against the inner surfaces of said channels, and are intended to entirely fill said channels including their wider dimensions as shown by said dotted-in portions 48, 49 and 50, 51. Said hydraulic packing members 52 and 53 are intended to extend slightly beyond the tapered surfaces 44 and 45 but not as far as points 39 and 40 thrown into operation.
on said surfaces. Any suitable hydraulic packing may be used. But I prefer to use a good grade of packing for such purpose.
In operation when my device is attached to the pipe in working position, and to the stand pipe, the pump is started. This has approximately a pressure of 500 pounds, or more. The water entering the body 1 of the device will immediately drive the valve 36 to the opposite end of the body 1 from that in which the water enters and the valve 36 will immediately close such opposite end; the hydraulic packing 52 and 53 around such end will be forced against the machined inside surface of the valve seat thereby closing the port adjacent thereto against egress of water, and the like, through opening 3 in L-shaped flange 2 into stand-pipe 11, and thence into the hose, well, rotating shaft, etc, and out again. If the pump being used becomes disabled, or other interruption occurs, the other pump is then I The plug valve will then be driven to the opposite end ofgthe device where it will be lodged in the tapered portion of the opposite valve seat. The flow of the water outwardly therethrough will be stopped and the liquid will then be forced through the same opening 3 thence into the stand pi pe, hose, well, rotating shaft, etc. and
out again.
ing thereof will be automatic. Also in case of the wearing of the hydraulic packing or of and the water will be forced the valve seats by loosening the bolts and nuts I and removing the valve seats new valve seats.
can be supplied and installed easily and new hydraulic packing can be easily and quickly installed on the double plug valve, bothof which processes will be cheaply and quickly done without interferring'with the operation of the drilling for any considerable length of time.
Having thus described the invention what is claimed and desired to be secured by Letters Patent is:
1. A slush pump double plu valve of the class described, comprising a barrel-shaped member having a central cylindrical portion, and having a portion between each of its ends and said central cylindrical portion oppositely tapered, each of said tapered portions'having a channel therearound for receiving hydraulic packing for respectively seatin removably in valve seats, hydraulic pac ng suitably fitting said channels and co-operating with said valve-seats, flanged valve seats being adapted to co-operate with a manifold, and to fit one at a time the tapering ends of said valve, said valve being adapted for lon itudinal movement in said manifold and or closing the bore in one of said valve seats and permitting the other to remain open.
2. A device of the class described, comprising valve seat members adapted for connecting to each end of a manifold, said seats each having a tapered central bore for receiving one end at a time of a double plug valve, each of said seats having an outwardly extending bore standardly threaded for pipe connec-' tions, a double plug valve substantially of a barrel-shaped form, eachend being tapered for fitting said valve seats, each tapered end having a channel therearound for holding a hydraulic packing, hydraulic packing members being adapted for seating in each of said channels and for fitting in said valve seats.
3. A device of the class described, comprising valve seats having flanged ends adapted for fastening to similar ends of a manifold, said valve seats having tapered bores open ing into said manifold and standardly threaded bores for pipe connections, a double plu valve adapted to fit in said manifold and for longitudinal movement therein, having frusto-conical tapered ends for removably itting one of said valve seats at a time, each of said tapered ends having intermediate its end a channel therearound for holding hydraulic packing, a hydraulic packing being adapted for positioning in said-channels, said end valve and said hydraulic packing being adapted for fitting and closing said valve seats.
4. A device of the class described, comprising valve seat members having flanges adj acent one end for fastening to correspondingly flanged ends of a manifold, fastening means for holding them securely together, said valve seats having a tapered bore diminishing from the end adjacent the flange to a point substantially midway the length of said member, and having an opening extending therefrom bein standardly threaded for pipe connection, a ouble plug valve being substantially barrel-shaped having its ends slightly tapered diminishing from its cen- [ill 5. The combination with a manifold, of a device of the class described, comprising an automatically operating double plug'valve, valve seats adapted for connecting the ends of said manifold, eachhavin internal tapered bores opening into said ody, their other ends having threaded openings for pipe connectionzii said double plug valve tapered ends,
said en s having channels therearound for holding hydraulic packing, said valve ends being adapted for fitting and closing and opening said valve seats, said double plug valve being adapted for longitudinal movement in said manifold.
6. A device of the class described, valve seat members having flanges adjacent one end for fastening to corespondingly flanged ends of a manifold, fastening means for holding them securely together, said valve seats having a tapered bore diminishing from the end adjacent the flange to a point substantially midway the length of said member and,
having an opening extending therefrom bei ng standardly threaded for pipe connection,
a double plug valve being substantially bar-' rel-sliaped having its ends slightly ta ered diminishing from its central third portion to each respective end, said tapered portion having intermediate its ends a channel therearound, said channel having a narrowed outer peripheral opening, said openingbecom- I ing wider as it recedes inwardly and being adapted for receiving a hydraulic packing, hydraulic packing for seating in said inwardly widenin channels, said valve portions being adapted for seating in said valve seats.
EDWARD M. BEEBE.
US270080A 1928-04-14 1928-04-14 Slush-pump manifold Expired - Lifetime US1686310A (en)

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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2417494A (en) * 1942-08-24 1947-03-18 Hoof Products Company Valve end seal
US2505171A (en) * 1946-02-01 1950-04-25 Studebaker Corp Transmission
US2551045A (en) * 1944-09-07 1951-05-01 Parker Appliance Co Shuttle valve
US2566609A (en) * 1947-06-20 1951-09-04 Grosse Rudolph Hydraulic safety valve
US2718233A (en) * 1953-01-28 1955-09-20 Walworth Co Valves
US3076525A (en) * 1960-04-11 1963-02-05 Parker Hannifin Corp Pulse lubricator
US3155105A (en) * 1961-12-19 1964-11-03 Martin B Legatz Automatic transfer control valve
US3972343A (en) * 1974-11-13 1976-08-03 Parker-Hannifin Corporation Shuttle valve
US4417861A (en) * 1981-08-10 1983-11-29 Monsanto Company Cell culture pumping system
US6257268B1 (en) 1999-12-01 2001-07-10 Gilmore Valve Company Pressure biased shuttle valve
US6318403B1 (en) * 2000-07-11 2001-11-20 Sammy G. Fritz Combination manifold and check valve for a water heater
US6318400B1 (en) 1999-12-01 2001-11-20 Gilmore Valve Company Low interflow hydraulic shuttle valve
US6655405B2 (en) 2001-01-31 2003-12-02 Cilmore Valve Co. BOP operating system with quick dump valve
US20070088216A1 (en) * 2005-10-19 2007-04-19 Up Management Gmbh & Co Med-Systems Kg Device and method for injectate duration measurement and temperature measurement
FR2917800A1 (en) * 2007-06-21 2008-12-26 Didier Thieme Three-way control valve for domestic hot water heating system, has obturator moved from primary position to secondary position under effect of pressure of fluid entering into valve through primary opening
EP2063932A2 (en) * 2006-09-18 2009-06-03 Alcon, Inc. Automatic stop cock valve
WO2010080161A1 (en) * 2009-01-12 2010-07-15 Donaldson Company, Inc. Robust shuttle valve and applications thereof
US20130032222A1 (en) * 2010-04-14 2013-02-07 Kevin Bresnahan Stackable shuttle valve
CN106545672A (en) * 2016-12-08 2017-03-29 韩学珍 A kind of pressure reversal valve
US20190331239A1 (en) * 2018-04-27 2019-10-31 Jingway Technology Co., Ltd. Switchable bidirectional core-actuated valve

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2417494A (en) * 1942-08-24 1947-03-18 Hoof Products Company Valve end seal
US2551045A (en) * 1944-09-07 1951-05-01 Parker Appliance Co Shuttle valve
US2505171A (en) * 1946-02-01 1950-04-25 Studebaker Corp Transmission
US2566609A (en) * 1947-06-20 1951-09-04 Grosse Rudolph Hydraulic safety valve
US2718233A (en) * 1953-01-28 1955-09-20 Walworth Co Valves
US3076525A (en) * 1960-04-11 1963-02-05 Parker Hannifin Corp Pulse lubricator
US3155105A (en) * 1961-12-19 1964-11-03 Martin B Legatz Automatic transfer control valve
US3972343A (en) * 1974-11-13 1976-08-03 Parker-Hannifin Corporation Shuttle valve
US4417861A (en) * 1981-08-10 1983-11-29 Monsanto Company Cell culture pumping system
US6257268B1 (en) 1999-12-01 2001-07-10 Gilmore Valve Company Pressure biased shuttle valve
US6318400B1 (en) 1999-12-01 2001-11-20 Gilmore Valve Company Low interflow hydraulic shuttle valve
US6318403B1 (en) * 2000-07-11 2001-11-20 Sammy G. Fritz Combination manifold and check valve for a water heater
US6655405B2 (en) 2001-01-31 2003-12-02 Cilmore Valve Co. BOP operating system with quick dump valve
US20040107991A1 (en) * 2001-01-31 2004-06-10 Gilmore Valve Co., Ltd. Bop operating system with quick dump valve
US6779543B2 (en) 2001-01-31 2004-08-24 Gilmore Valve Co., Ltd. BOP operating system with quick dump valve
US20070088216A1 (en) * 2005-10-19 2007-04-19 Up Management Gmbh & Co Med-Systems Kg Device and method for injectate duration measurement and temperature measurement
EP1776921A3 (en) * 2005-10-19 2007-12-12 UP Management GmbH & Co Med-Systems KG Device and method for injectate duration measurement and temperature measurement
EP2063932A4 (en) * 2006-09-18 2009-11-11 Alcon Inc Automatic stop cock valve
EP2063932A2 (en) * 2006-09-18 2009-06-03 Alcon, Inc. Automatic stop cock valve
FR2917800A1 (en) * 2007-06-21 2008-12-26 Didier Thieme Three-way control valve for domestic hot water heating system, has obturator moved from primary position to secondary position under effect of pressure of fluid entering into valve through primary opening
WO2010080161A1 (en) * 2009-01-12 2010-07-15 Donaldson Company, Inc. Robust shuttle valve and applications thereof
US20130032222A1 (en) * 2010-04-14 2013-02-07 Kevin Bresnahan Stackable shuttle valve
US9032988B2 (en) * 2010-04-14 2015-05-19 Parker Hannifin Corporation Stackable shuttle valve
CN106545672A (en) * 2016-12-08 2017-03-29 韩学珍 A kind of pressure reversal valve
US20190331239A1 (en) * 2018-04-27 2019-10-31 Jingway Technology Co., Ltd. Switchable bidirectional core-actuated valve
US10677364B2 (en) * 2018-04-27 2020-06-09 Jingway Technology Co., Ltd. Switchable bidirectional core-actuated valve

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