US3566928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor seal for dispensing nozzles
Assignee: Sunoco Inc
•
Filing: 1969-07-22
•
Granted: 1971-03-02
•
Expires: 1989-07-22
Abstract
Abstract Vapors displaced from a liquid fuel tank by the liquid fuel being dispensed thereinto through a nozzle are collected by means of a flexible bellows which surrounds the nozzle and one end of which is sealed to the fillpipe of the fuel tank.
Inventors
- 👤 William B Hansel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:36
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/42; B67D7/54; F; F16; F16J; F16J15/00; F16J15/50; F16J15/52; F16J3/00; F16J3/04; F16J3/041; F16J3/046; B67D2007/545
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
93 words
In combination, a liquid fuel dispensing nozzle with a discharge spout for insertion into the metallic fillpipe of a motor vehicle fuel tank, an elongated continuous imperforate flexible bellows of cylindrical outer configuration sealed at one end thereof to the body of said spout, said bellows surrounding said spout in spaced relation thereto to provide a chamber therearound, said chamber being coupled to the interior of said fillpipes; and separate means carried by the other end of said bellows for forming a positive flat face seal against the outer end of said fillpipe.
Claim 2
Dependent Claim
93 words
In combination, a liquid fuel dispensing nozzle with a discharge spout for insertion into the metallic fillpipe of a motor vehicle fuel tank, an elongated continuous imperforate flexible bellows of cylindrical outer configuration sealed at one end thereof to the body of said spout, said bellows surrounding said spout in spaced relation thereto to provide a chamber therearound, said chamber being coupled to the interior of said fillpipes; and separate means carried by the other end of said bellows for forming a positive flat face seal against the outer end of said fillpipe.
Claim 3
Dependent Claim
27 words
Combination of claim 1, including also a coupling at said one end of said bellows constructed and arranged to enable vapors to bE abstracted from said chamber.
Claim 4
Dependent Claim
36 words
Combination according to claim 1, wherein said separate means includes a flat magnetic sealing element secured to said other end of said bellows and held against the outer end of said fillpipe by magnetic attractive forces.
Claim 5
Dependent Claim
29 words
Combination set forth in claim 3, including also a coupling at said one end of said bellows constructed and arranged to enable vapors to be abstracted from said chamber.
References Cited (Backward Citations)
US569180A
Cited
US2803269A
Cited
US2908299A
Cited
FR1292909A
Cited
FR1322086A
Cited
US3151695A
Cited
US3318345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |