US3831845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid delivery system
Assignee: PARTEK CORP OF HOUSTON
•
Filing: 1973-08-17
•
Granted: 1974-08-27
•
Expires: 1993-08-17
Abstract
Abstract A high pressure fluid delivery system is disclosed in which two or more guns, each having a high pressure nozzle outlet and a low pressure dump outlet, may be connected to and operated from the same pump. Pressure responsive control apparatus is provided in the flow line between each gun and the pump and each such apparatus includes a valve responsive to the fluid pressure at its respective gun for directing fluid either directly to such gun when flow is through the gun nozzle, or through an opening through the valve substantially the same size as the nozzle orifice of such gun when the gun is dumping.
Inventors
- 👤 A Pacht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:59
CPC Classifications
B; B60; B60S; B60S3/00; B05; B05B; B05B9/00; B05B9/03; B05B9/04; B05B9/0403; B05B9/0423; B08; B08B; B08B3/00; B08B3/02; B08B3/026; B08B2203/00; B08B2203/02; B08B2203/0217; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2562; Y10T137/7722; Y10T137/7837; Y10T137/7847; Y10T137/8593; Y10T137/877; Y10T137/87829
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
207 words
In a fluid system for supplying a high pressure stream of fluid, including a pump having a low pressure inlet adapted to be connected to a source of fluid and a high pressure outlet, and at least one nozzle gun having an inlet, a high pressure discharge nozzle, a relatively low pressure dump outlet, and actuating means for diverting flow between said nozzle and said dump outlet, the improvement in said system comprising at least one fluid pressure control apparatus having an inlet adapted to be connected to the outlet of said pump, an outlet adapted to be connected to the inlet of one of said guns, a flow passageway connected between its inlet and outlet, a valve means in said flow passageway responsive to the fluid pressure at said outlet to move between a first position permitting flow through said passageway when the gun connected thereto is actuated to discharge fluid through its nozzle, and to a second position wherein a restriction to flow through said passageway is provided when said gun is dumping, said restriction to flow having substantially the same effect on flow as the restriction to flow provided by the nozzle opening of the gun connected to the outlet of said control means.
Claim 2
Dependent Claim
207 words
In a fluid system for supplying a high pressure stream of fluid, including a pump having a low pressure inlet adapted to be connected to a source of fluid and a high pressure outlet, and at least one nozzle gun having an inlet, a high pressure discharge nozzle, a relatively low pressure dump outlet, and actuating means for diverting flow between said nozzle and said dump outlet, the improvement in said system comprising at least one fluid pressure control apparatus having an inlet adapted to be connected to the outlet of said pump, an outlet adapted to be connected to the inlet of one of said guns, a flow passageway connected between its inlet and outlet, a valve means in said flow passageway responsive to the fluid pressure at said outlet to move between a first position permitting flow through said passageway when the gun connected thereto is actuated to discharge fluid through its nozzle, and to a second position wherein a restriction to flow through said passageway is provided when said gun is dumping, said restriction to flow having substantially the same effect on flow as the restriction to flow provided by the nozzle opening of the gun connected to the outlet of said control means.
Claim 3
Dependent Claim
68 words
The system of claim 1 wherein said valve means includes a valve seat member and a valve stem member for seating a said valve seat member to close said flow passageway in said second position, and said valve stem member includes an orifice therein for providing said restriction to flow and to by pass said valve means when the valve stem member is seated on said valve stem.
Claim 4
Dependent Claim
73 words
The system of claim 1 wherein said valve means includes a valve seat member and a valve stem member, and further including resilient means for urging said valve stem member to be seated on said seat member, and stop means for stopping said valve stem member in the direction of movement towards said valve seat member before seating thereon to provide said flow restriction with said valve stem member in said second position.
Claim 5
Dependent Claim
32 words
The system of claim 3 further including adjusting means for adjusting the opening between said value stem member and said seat member when said value stem member is in said second position.
Claim 6
Dependent Claim
34 words
The system of claim 1 wherein a plurality of nozzle guns are connected to said pump and wherein one of said fluid pressure control apparatus is connected between each such gun and said pump.
Claim 7
Dependent Claim
114 words
The system of claim 1 wherein said valve means includes a valve seat member mounted in said flow passageway and an elongated valve stem mounted in said apparatus to extend into said flow passageway for movement between said first position wherein said valve means is open to said second position wherein said valve stem is seated on said valve seat; an orifice in said valve stem adapted to by pass said valve means for fluid flow to provide said restriction to flow when said valve stem is in said second position, and resilient means urging said valve stem into said second position except when the fluid pressure at said outlet exceeds a preselected value.
Claim 8
Dependent Claim
52 words
The system of claim 1 wherein said valve means includes a valve seat member and a valve stem member, and further including resilient means for urging said valve stem Member towards being seated on said seat member, and means for providing a change in the resilient force urging said valve stem member.
Claim 9
Dependent Claim
20 words
The system of claim 1 further including means for breaking up the flow of fluid from said pressure control apparatus.
Claim 10
Dependent Claim
31 words
The system of claim 8 wherein said last mentioned means is a disk inserted in to the outlet of said control apparatus said disk having a plurality of flow ports therein.
Claim 11
Dependent Claim
190 words
Pressure control apparatus for connection in a high pressure fluid delivery system between a pump and a gun assembly having a high pressure nozzle outlet and a dump outlet, for maintaining a substantially constant load on the pump, said apparatus comprising, in combination: a housing having an inlet adapted to be connected to the outlet of such a pump, an outlet adapted to be connected to such a gun, and a flow passageway connected between said inlet and said outlet; valve means in said passageway for permitting or interrupting flow of fluid from said inlet through said passageway to said outlet, said valve means including means for providing a restriction to fluid flow substantially the same size as the nozzle on said gun, said valve means being responsive to fluid pressure at the outlet of said apparatus to be open to flow when the fluid pressure at said outlet is relatively high; and means for causing said valve means to interrupt flow through said main passageway when the fluid pressure at said outlet is relatively low and divert such flow through said means for providing a restriction to fluid flow.
Claim 12
Dependent Claim
190 words
Pressure control apparatus for connection in a high pressure fluid delivery system between a pump and a gun assembly having a high pressure nozzle outlet and a dump outlet, for maintaining a substantially constant load on the pump, said apparatus comprising, in combination: a housing having an inlet adapted to be connected to the outlet of such a pump, an outlet adapted to be connected to such a gun, and a flow passageway connected between said inlet and said outlet; valve means in said passageway for permitting or interrupting flow of fluid from said inlet through said passageway to said outlet, said valve means including means for providing a restriction to fluid flow substantially the same size as the nozzle on said gun, said valve means being responsive to fluid pressure at the outlet of said apparatus to be open to flow when the fluid pressure at said outlet is relatively high; and means for causing said valve means to interrupt flow through said main passageway when the fluid pressure at said outlet is relatively low and divert such flow through said means for providing a restriction to fluid flow.
Claim 13
Dependent Claim
33 words
The apparatus of claim 10 wherein said means for providing said restriction to fluid flow is an orifice in said valve means through which fluid can by pass said valve means when closed.
Claim 14
Dependent Claim
32 words
The apparatus of claim 10 wherein said valve means further includes stop means for preventing full closure of said valve means to provide said means for providing said restriction to fluid flow.
Claim 15
Dependent Claim
18 words
The apparatus of claim 12 further including adjusting means for adjusting the minimum opening through said valve means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |