US4497290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel system tester and primer
Assignee: Stant USA Corp
•
Filing: 1983-04-11
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Granted: 1985-02-05
•
Expires: 2003-04-11
Abstract
Abstract A fuel system tester and primer includes a pump for pressurizing a fuel system, a fuel tank adapter, and a conduit for coupling the pump to the adapter. The fuel system tester and primer also includes a pressure release valve for venting excess pressure when a predetermined pressure is reached within the system, and a pressure monitor gauge for detecting pressure changes in a pressurized fuel system.
Inventors
- 👤 Robert S. Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:51
CPC Classifications
F; F02; F02M; F02M37/00; F02M37/04; F02M37/16; F02M1/00; F02M1/16; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85978; Y10T137/86099
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
99 words
For use with a vehicle fuel system including a fuel tank having a filler neck provided with fastening elements, a portable hand held apparatus for pressurizing the fuel tank and the system, the apparatus comprising a pump for pressurizing the fuel system, a closure member for coupling the pump to the filler neck, the closure member including fastening elements for removably engaging the fastening elements on the filler neck, a conduit connecting the pump to closure member, pressure relief means for relieving excess pressure within the fuel system, and means for coupling the pressure relief means to the pump.
Claim 2
Dependent Claim
99 words
For use with a vehicle fuel system including a fuel tank having a filler neck provided with fastening elements, a portable hand held apparatus for pressurizing the fuel tank and the system, the apparatus comprising a pump for pressurizing the fuel system, a closure member for coupling the pump to the filler neck, the closure member including fastening elements for removably engaging the fastening elements on the filler neck, a conduit connecting the pump to closure member, pressure relief means for relieving excess pressure within the fuel system, and means for coupling the pressure relief means to the pump.
Claim 3
Dependent Claim
18 words
The apparatus of claim 1 further comprising detection means for detecting pressure loss from a pressurized fuel system.
Claim 4
Dependent Claim
13 words
The apparatus of claim 2 wherein the detection means comprises a pressure-monitoring gauge.
Claim 5
Dependent Claim
96 words
For use with a vehicle fuel system including a fuel tank having a filler neck provided with fastening elements, a portable hand-held apparatus for pressurizing the fuel tank and the system, said apparatus comprising: a reciprocating pump for pressurizing the fuel tank and the system, a closure member, the closure member including fastening elements for removably engaging the fastening elements on the filler neck, a conduit connecting the pump to the closure member, a pressure valve assembly for relieving excess pressure within the fuel system, and means for connecting the pressure valve assembly to the pump.
Claim 6
Dependent Claim
96 words
For use with a vehicle fuel system including a fuel tank having a filler neck provided with fastening elements, a portable hand-held apparatus for pressurizing the fuel tank and the system, said apparatus comprising: a reciprocating pump for pressurizing the fuel tank and the system, a closure member, the closure member including fastening elements for removably engaging the fastening elements on the filler neck, a conduit connecting the pump to the closure member, a pressure valve assembly for relieving excess pressure within the fuel system, and means for connecting the pressure valve assembly to the pump.
Claim 7
Dependent Claim
30 words
The apparatus of claim 4 further comprising a pressure-monitoring gauge for detecting pressure loss from a pressurized fuel system and means for connecting the pressure monitoring means to the pump.
Claim 8
Dependent Claim
97 words
For use with a vehicle fuel system including a fuel tank having a filler neck provided with fastening elements, a portable hand-held apparatus for testing for leakage in a fuel system, said apparatus comprising a reciprocating pump for pressurizing the fuel system to a predetermined pressure, a closure member, the closure member including fastening elements for removably engaging the fastening elements on the filler neck, a conduit connecting the pump to the closure member, a pressure-monitoring gauge for detecting a pressure change over a period of time, and means for connecting the pressure-monitoring gauge to the pump.
Claim 9
Dependent Claim
97 words
For use with a vehicle fuel system including a fuel tank having a filler neck provided with fastening elements, a portable hand-held apparatus for testing for leakage in a fuel system, said apparatus comprising a reciprocating pump for pressurizing the fuel system to a predetermined pressure, a closure member, the closure member including fastening elements for removably engaging the fastening elements on the filler neck, a conduit connecting the pump to the closure member, a pressure-monitoring gauge for detecting a pressure change over a period of time, and means for connecting the pressure-monitoring gauge to the pump.
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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) | 1988-02-05 | 1988-08-06 | 1989-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-05 | 1992-08-06 | 1993-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-05 | 1996-08-06 | 1997-02-05 | $7700.00 | Window Closed / Lapsed |