US3765607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure fluid system and nozzle and valve assembly therefore
Assignee: PARTEK CORP
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Filing: 1972-08-04
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Granted: 1973-10-16
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Expires: 1992-08-04
Abstract
Abstract A fluid system for supplying a high pressure stream of fluid is disclosed in which a novel, hand-held nozzle and valve assembly is provided for controlling the flow of fluid from a high pressure pump to a nozzle. The assembly includes a valve housing having a pressure relief or dump outlet and a valve member which is movable between a position in which fluid is dumped or relieved through the pressure relief outlet to a position where substantially all of the fluid flow is through the nozzle. A flat, fluted valve member is utilized to minimize wear, and misalignment and to conserve space. Means, such as a muffler, is provided for diverting the fluid flowing through the pressure relief outlet in such a manner to substantially reduce kick of the assembly when the pressure in the valve housing is relieved. The assembly is also arranged to permit use of different types of operating handles with the same valve housing.
Inventors
- 👤 A Pacht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:07
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/30; B05B1/14; B05B1/16; B05B1/1681; B05B9/00; B05B9/01
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
229 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 a nozzle and valve assembly adapted to be connected for fluid communication with said outlet, the improvement in said assembly comprising, in combination: a housing having a valve chamber therein, a fluid inlet in fluid communication with said chamber, a high pressure fluid outlet in fluid communication with said chamber, and a fluid pressure relief outlet in fluid communication with said chamber; valve means disposed in said chamber and actuable between a first position permitting substantial flow of fluid from said inlet to said pressure relief outlet to a second position substantially interrupting such flow of fluid while permitting flow of fluid from said inlet to said high pressure outlet, said valve means including valve seat member having a substantially flat valve seat, and a fluted valve member having a substantially flat surface for engaging said valve seat in a sealing relationship; actuating means mounted on said housing for so actuating said valve means; and back pressure control means mounted on said housing and in fluid communication with said pressure relief outlet and said fluid inlet for substantially reducing kick of said assembly when said valve means moves between said first and second positions.
Claim 2
Dependent Claim
229 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 a nozzle and valve assembly adapted to be connected for fluid communication with said outlet, the improvement in said assembly comprising, in combination: a housing having a valve chamber therein, a fluid inlet in fluid communication with said chamber, a high pressure fluid outlet in fluid communication with said chamber, and a fluid pressure relief outlet in fluid communication with said chamber; valve means disposed in said chamber and actuable between a first position permitting substantial flow of fluid from said inlet to said pressure relief outlet to a second position substantially interrupting such flow of fluid while permitting flow of fluid from said inlet to said high pressure outlet, said valve means including valve seat member having a substantially flat valve seat, and a fluted valve member having a substantially flat surface for engaging said valve seat in a sealing relationship; actuating means mounted on said housing for so actuating said valve means; and back pressure control means mounted on said housing and in fluid communication with said pressure relief outlet and said fluid inlet for substantially reducing kick of said assembly when said valve means moves between said first and second positions.
Claim 3
Dependent Claim
29 words
The system of claim 1 wherein said back pressure control means includes flow diverting means for diverting fluid that passes throughout said pressure relief outlet by an acute angle.
Claim 4
Dependent Claim
100 words
The system of claim 2 wherein said valve seat member is mounted in said chamber adjacent said pressure relief outlet and between said pressure relief outlet and said inlet, and said fluted valve member is mounted in said chamber adjacent said inlet and between said inlet and said valve seat member, said valve seat member including a central bore in fluid communication with said inlet, and a plurality of radially extending bores connected between said central bore and said pressure relief outlet, said radially extending bores having an acute angle with said central bore and providing said flow diverting means.
Claim 5
Dependent Claim
14 words
The system of claim 3 wherein the said acute angle is less than 45*.
Claim 6
Dependent Claim
101 words
The system of claim 2 wherein said back pressure control means includes a muffler mounted on said housing and connected to said pressure relief outlet, said muffler having an enlarged housing with an internal bore therein open to atomospheric pressure, and wherein said flow diverting means includes an elongated tubular member mounted in said internal bore and having a central bore therein in communication with said pressure relief outlet, and a plurality of radially extending bores, each having an acute angle with respect to said central bore and communicating between said central bore and said internal bore of said muffler housing.
Claim 7
Dependent Claim
13 words
The system of claim 5 wherein said acute angle is less than 45*.
Claim 8
Dependent Claim
102 words
The system of claim 3 wherein said back pressure control means includes a muffler mounted on said housing and connected to said pressure relief outlet, said muffler having an enlarged housing with an internal bore therein open to atmospheric pressure, and wherein said flow diverting means further includes an elongated tubular member mounted in said internal bore and having a central bore therein in communication with said pressure relief outlet, and a plurality of radially extending bores, each having an acute angle with respect to said central bore and communicating between said central bore and said internal bore of said muffler housing.
Claim 9
Dependent Claim
24 words
The system of claim 3 wherein the radial edges of said seat member are substantially overlapped by the radial edges of said valve member.
Claim 10
Dependent Claim
55 words
The system of claim 8 wherein said valve member is fluted adjacent its end that seats against said valve seat member, and the radial edges of said fluted portion guide said valve member in said valve chamber, and the grooves between said radial edges of said fluted portion provide fluid communication through said fluted portion.
Claim 11
Dependent Claim
74 words
The system of claim 1 wherein said actuating means includes a pin passing from adjacent and in abutment with said valve means, through said housing spring, means for urging said pin out of said housing, a flange mounted on the outside of said housing and about said pin, and including mounting bolts symmetrically located in said flange and said housing, and a trigger means mounted on said flange and in engagement with said pin.
Claim 12
Dependent Claim
30 words
The system of claim 10 wherein said trigger means includes a pistol-grip handle formed with said flange and a trigger pivotally mounted in said pistol-grip handle for actuating said pin.
Claim 13
Dependent Claim
183 words
A hand-held nozzle and valve assembly for controlling the flow of fluid in a high pressure fluid system, comprising, in combination: a housing having a valve chamber therein, a fluid inlet in fluid communication with said chamber, a high pressure fluid outlet in fluid communication with said chamber, and a fluid pressure relief outlet in fluid communication with said chamber; valve means disposed in said chamber and actuable between a first position permitting substantial flow of fluid from said inlet to said pressure relief outlet to a second position substantially interrupting such flow of fluid while permitting flow of fluid from said inlet to said high pressure outlet; actuating means mounted on said housing for so actuating said valve means; and back pressure control means mounted on said housing and in fluid communication with said pressure relief outlet, and said fluid inlet for substantially reducing kick of said assembly when said valve means moves between said first and second positions, said back pressure control means including flow Diverting means for diverting fluid that passes throughout said pressure relief outlet by an acute angle.
Claim 14
Dependent Claim
183 words
A hand-held nozzle and valve assembly for controlling the flow of fluid in a high pressure fluid system, comprising, in combination: a housing having a valve chamber therein, a fluid inlet in fluid communication with said chamber, a high pressure fluid outlet in fluid communication with said chamber, and a fluid pressure relief outlet in fluid communication with said chamber; valve means disposed in said chamber and actuable between a first position permitting substantial flow of fluid from said inlet to said pressure relief outlet to a second position substantially interrupting such flow of fluid while permitting flow of fluid from said inlet to said high pressure outlet; actuating means mounted on said housing for so actuating said valve means; and back pressure control means mounted on said housing and in fluid communication with said pressure relief outlet, and said fluid inlet for substantially reducing kick of said assembly when said valve means moves between said first and second positions, said back pressure control means including flow Diverting means for diverting fluid that passes throughout said pressure relief outlet by an acute angle.
Claim 15
Dependent Claim
103 words
The system of claim 12 wherein said valve means includes a fixed valve seat member mounted in said chamber adjacent said pressure relief outlet and between said pressure relief outlet and said inlet, and a movable valve member mounted in said chamber adjacent said inlet and between said inlet and said valve seat member, said valve seat member including a central bore in fluid communication with said inlet, and a plurality of radially extending bores connected between said central bore and said pressure relief outlet, said radially extending bores having an acute angle with said central bore and providing said flow diverting means.
Claim 16
Dependent Claim
14 words
The system of claim 13 wherein the said acute angle is less that 45*.
Claim 17
Dependent Claim
101 words
The system of claim 12 wherein said back pressure control means includes a muffler mounted on said housing and connected to said pressure relief outlet, said muffler having an enlarged housing with an internal bore therein open to atmospheric pressure, and wherein said flow diverting means includes an elongated tubular member mounted in said internal bore and having a central bore therein in communication with said pressure relief outlet, and a plurality of radially extending bores, each having an acute angle with respect to said central bore and communicating between said central bore and said internal bore of said muffler housing.
Claim 18
Dependent Claim
13 words
The system of claim 15 wherein said acute angle is less than 45*.
Claim 19
Dependent Claim
102 words
The system of claim 13 wherein said back pressure control means includes a muffler mounted on said housing and connected to said pressure relief outlet, said muffler having an enlarged housing with an internal bore therein open to atmospheric pressure, and wherein said flow diverting means further includes an elongated tubular member mounted in said internal bore and having a central bore therein in communication with said pressure relief outlet, and a plurality of radially extending bores, each having an acute angle with respect to said central bore and communicating between said central bore and said internal bore of said muffler housing.
Claim 20
Dependent Claim
43 words
The system of claim 13 wherein the mating surfaces of each of said valve seat member and said movable valve member are substantially flat and the radial edges of said seat member are substantially overlapped by the radial edges of said valve member.
Claim 21
Dependent Claim
55 words
The system of claim 18 wherein said valve member is fluted adjacent its end that seats against said valve seat member, and the radial edges of said fluted portion guide said valve member in said valve chamber, and the grooves between said radial edges of said fluted portion provide fluid communication through said fluted portion.
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |