US3849032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure reciprocating pump
Assignee: TA ACQUISITION CORP
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Filing: 1973-07-02
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Granted: 1974-11-19
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Expires: 1993-07-02
Abstract
Abstract A high pressure pump having reciprocating plungers executing suction and discharge strokes, improved by valve assemblies in which valve components extend from a side of an elastomeric seal and an anchoring ring extends from the opposite side of the seal to reduce wear and assure proper alignment of the valve assembly. Similar interchangeable valve assemblies are mounted in communication with the suction and discharge chambers of the pump, but in reverse directions. An improved sealing means is provided by a plurality of V-rings compressed against a lubricating ring by a spring bottomed in a cylindrical chamber wherein the plunger operates in executing the suction and discharge strokes. An additive fluid adaptor with metering means is mounted to a passageway communicating with the suction chamber, and a one-way check valve controls entry of the additive fluid only upon execution of the suction stroke of the plunger.
Inventors
- 👤 P Mulvey
- 👤 K Porter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:16
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/16; F04B53/162; F04B53/164; F04B1/00; F04B13/00; F04B13/02; F04B53/10; F04B53/102; F04B53/1022; Y; Y10; Y10T; Y10T137/00; Y10T137/7504; Y10T137/7559; Y10T137/7668; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7937
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
185 words
In a high pressure pump having a plunger movable in a cylinder by a rotatable crankshaft to urge fluid through an entry into a suction chamber of the pump, and then urge the fluid under pressure through a discharge chamber and out of said pump, the improvement which comprises an interchangeable valve assembly mounted in said suction and discharge chambers, said valve assemblies being reversed relative to each other so that such suction chamber valve assembly is opened and said discharge chamber valve assembly is closed during a suction stroke of the plunger, and said opening and closing of the valve assemblies is reversed during the pressure stroke of the plunger, each valve assembly including a continuous flange mounted interiorly in an annular groove in an elastomeric seal ring and extending beyond one side of said elastomeric ring, a rigid anchoring ring having a continuous flange mounted interiorly in said annular groove in said elastomeric seal ring and extending beyond the opposite side of said elastomeric seal ring, and a matching continuous grooved seat in each of said chambers wherein said anchoring ring is positioned.
Claim 2
Dependent Claim
185 words
In a high pressure pump having a plunger movable in a cylinder by a rotatable crankshaft to urge fluid through an entry into a suction chamber of the pump, and then urge the fluid under pressure through a discharge chamber and out of said pump, the improvement which comprises an interchangeable valve assembly mounted in said suction and discharge chambers, said valve assemblies being reversed relative to each other so that such suction chamber valve assembly is opened and said discharge chamber valve assembly is closed during a suction stroke of the plunger, and said opening and closing of the valve assemblies is reversed during the pressure stroke of the plunger, each valve assembly including a continuous flange mounted interiorly in an annular groove in an elastomeric seal ring and extending beyond one side of said elastomeric ring, a rigid anchoring ring having a continuous flange mounted interiorly in said annular groove in said elastomeric seal ring and extending beyond the opposite side of said elastomeric seal ring, and a matching continuous grooved seat in each of said chambers wherein said anchoring ring is positioned.
Claim 3
Dependent Claim
94 words
In a high pressure pump which includes the features of claim 1 above, wherein the valve assembly extending out of one side of the elastomeric seal includes a bottom flanged valve housing, a valve cap urged to closed position against a bottom flanged valve seat, the bottom flanges of said housing and valve seat being held in adjoining relationship within said elastomeric seal, and said valve housing having discharge ports to move the fluids under pressure therethrough when the valve cap is opened by being unseated from said valve seat under pressure fluid levels.
Claim 4
Dependent Claim
61 words
A pressure pump which includes the features of claim 2 above, wherein the valve housing positioned in the suction chamber is the portion of the valve assembly which is closest to the end of the plunger, and the valve housing positioned in the discharge chamber is the portion of the valve assembly which is farthest from the end of said plunger.
Claim 5
Dependent Claim
41 words
A pressure pump which includes the features of claim 3 above, wherein a plurality of plungers operate in communication with said suction chamber, and a plurality of entries, each aligned with a valve assembly, are in communication with said suction chamber.
Claim 6
Dependent Claim
22 words
A pressure pump which includes the features of claim 4 above, wherein said discharge chamber has a plurality of communicating discharge outlets.
Claim 7
Dependent Claim
44 words
A pressure pump which includes the features of claim 2 above, wherein said anchoring ring has a large flanged opening mounted within the elastomeric seal and a small opening extending out of said seal for positioning in a seat formed in the pump body.
Claim 8
Dependent Claim
56 words
A pressure pump which includes the features of claim 1 above, wherein said plunger is reciprocably positioned in a cyclinder housing, annular sealing means between the plunger and the cylindrical housing, aNd means at one end of the cyclindrical housing urging said annular sealing means in sealing engagement towards the opposite end of the cylindrical housing.
Claim 9
Dependent Claim
62 words
A pressure pump which includes the features of claim 7 above, wherein said annular sealing means are a plurality of flexible V-rings and a hardened base V-ring, the apices whereof are disposed in a uniform direction, and said biasing means is a spring having one final turn bottomed in the cylindrical housing and the opposite final turn bottomed against the hardened base.
Claim 10
Dependent Claim
66 words
A high pressure pump which includes the features of claim 8 above, wherein the V-ring most remote from the bottom of the cylindrical housing adjoins a lubricating ring which position is fixed by an annular stop within the cylindrical housing, said lubricating ring having a plurality of passages communicating with the cylinder chamber, and said ring being aligned with a lubricating inlet in said cylindrical housing.
Claim 11
Dependent Claim
52 words
A pressure pump which includes the features of claim 1 above, and which further includes a passageway communicating with said suction chamber, an impulse injector fitting mounted to said passageway, said fitting including a one-way check valve operable to allow introduction of additive fluid only upon the suction stroke of said plunger.
Claim 12
Dependent Claim
36 words
A pressure pump which includes the features of claim 9 above, and which further includes metering means on said impulse injector fitting to control the amount of additive fluid which is introduced into the suction chamber.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |