US3734149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refueling system for automobiles
Assignee: Sunoco Inc
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Filing: 1970-10-30
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Granted: 1973-05-22
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Expires: 1990-10-30
Abstract
Abstract A ''''tight-break'''' gravity refueling system for automobiles may include a normally closed valve in the fuel tank fillpipe which is opened by the insertion into the fillpipe of a rigid dispensing tube end, a portable fuel receptacle having a rigid dispensing tube end and equipped with a self-closing valve, and a combination sight glass-vent tube coupled to the fuel tank and mounted on the automobile rear deck. Another type of fuel level indicator, mounted on the fuel tank, may be alternatively used.
Inventors
- 👤 W Hansel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:29
CPC Classifications
F; F16; F16K; F16K21/00; B; B60; B60K; B60K15/00; B60K15/03; B60K15/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
197 words
An automobile refueling system comprising a fuel tank carried by the automobile and having a rigid fillpipe extending in a generally upward direction from the tank to the exterior of the automobile; an elongated portable generally cylindrical receptacle adapted to contain fuel, said receptacle having a flexible-walled outlet hose coupled to one end thereof, a pivotally-mounted rigid dispensing tube surrounding an end portion of said hose and acting on said hose to pinch the bore thereof closed when said tube is pivoted to a bent position wherein it extends at a substantial angle to the receptacle longitudinal axis and to open the bore of said hose when said tube is pivoted to a straight position wherein it extends substantially parallel to the receptacle longitudinal axis, and means normally biasing said tube to its bent angular position; whereby said tube may be inserted in its bent position into said fillpipe and then the receptacle raised upwardly to cause said tube due to engagement with said rigid fillpipe to be pivoted to its straight parallel position to open the bore of saiD hose and allow the contents of said receptacle to flow downwardly through said hose into said fillpipe.
Claim 2
Dependent Claim
197 words
An automobile refueling system comprising a fuel tank carried by the automobile and having a rigid fillpipe extending in a generally upward direction from the tank to the exterior of the automobile; an elongated portable generally cylindrical receptacle adapted to contain fuel, said receptacle having a flexible-walled outlet hose coupled to one end thereof, a pivotally-mounted rigid dispensing tube surrounding an end portion of said hose and acting on said hose to pinch the bore thereof closed when said tube is pivoted to a bent position wherein it extends at a substantial angle to the receptacle longitudinal axis and to open the bore of said hose when said tube is pivoted to a straight position wherein it extends substantially parallel to the receptacle longitudinal axis, and means normally biasing said tube to its bent angular position; whereby said tube may be inserted in its bent position into said fillpipe and then the receptacle raised upwardly to cause said tube due to engagement with said rigid fillpipe to be pivoted to its straight parallel position to open the bore of saiD hose and allow the contents of said receptacle to flow downwardly through said hose into said fillpipe.
Claim 3
Dependent Claim
44 words
System according to claim 13, including also a duck-bill valve of resilient material mounted in said fillpipe, the lips of said valve being normally closed and sealed but being adapted to be forced open when said rigid dispensing tube is inserted into said fillpipe.
Claim 4
Dependent Claim
100 words
System set forth in claim 13, including also a duck-bill valve of resilient material mounted in said fillpipe, the lips of said valve being normally closed and sealed but being adapted to be forced open when said rigid dispensing tube is inserted into said fillpipe; and a transparent vent tube coupled at one end to the upper portion of said tank and at its other end to the atmosphere, said vent tube being visible from the exterior of the automobile and having a length sufficient to prevent escape of fuel therethrough to the atmosphere when said fuel tank is full.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |