US4505308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing device for liquid dispensing nozzles which recover vapor having conduit internal to fillpipe
Assignee: BP Corp North America Inc
•
Filing: 1979-02-23
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Granted: 1985-03-19
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Expires: 1999-02-23
Abstract
Abstract A sealing member capable of elastic deformations provides a seal from the atmosphere between the mouth of a fillpipe and a liquid dispensing nozzle having vapor recovery conduit means internal to the receptive fillpipe, typically for use with gasoline.
Inventors
- 👤 Donald C. Walker
- 👤 Irwin Ginsburgh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:04
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/42; B67D7/54
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
127 words
A curved liquid dispensing nozzle adapted for misaligned insertion into a fillpipe having a vapor recovery conduit means which is internal to the mouth of said fillpipe when the nozzle is inserted wherein the improvement comprises a three-dimensionally flexible sealing member having the curvature of approximately torus shape, an external diameter greater than the external diameter of said fillpipe and an internal diameter smaller than the internal diameter of said fillpipe whereby the curvature in the inner and the outer periphery of the torus provides lateral sealing and deformation surface, said sealing member having the capacity for elastic nonuniform deformation in three dimensions and providing a seal from the atmosphere between the misaligned nozzle and the abutting mouth of the fillpipe when said nozzle is inserted therein.
Claim 2
Dependent Claim
127 words
A curved liquid dispensing nozzle adapted for misaligned insertion into a fillpipe having a vapor recovery conduit means which is internal to the mouth of said fillpipe when the nozzle is inserted wherein the improvement comprises a three-dimensionally flexible sealing member having the curvature of approximately torus shape, an external diameter greater than the external diameter of said fillpipe and an internal diameter smaller than the internal diameter of said fillpipe whereby the curvature in the inner and the outer periphery of the torus provides lateral sealing and deformation surface, said sealing member having the capacity for elastic nonuniform deformation in three dimensions and providing a seal from the atmosphere between the misaligned nozzle and the abutting mouth of the fillpipe when said nozzle is inserted therein.
Claim 3
Dependent Claim
15 words
The nozzle of claim 1 wherein the sealing member is filled with elastically compressible support.
Claim 4
Dependent Claim
22 words
The nozzle of claim 1 wherein the conduit means comprises the annular space between an inner dispensing tube and an outer sheath.
Claim 5
Dependent Claim
19 words
The nozzle of claim 3 wherein the outer sheath has one or more holes for entry of the vapor.
Claim 6
Dependent Claim
15 words
The nozzle of claim 4 wherein the holes are located in one or more rows.
Claim 7
Dependent Claim
14 words
The nozzle of claim 1 having a support structure means supporting the sealing member.
Claim 8
Dependent Claim
13 words
The nozzle of claim 6 wherein the support structure means comprises a flange.
Claim 9
Dependent Claim
98 words
A curved liquid dispensing nozzle adapted for misaligned engagement within a fillpipe and having a vapor recovery conduit means which is internal to the mouth of said fillpipe when the nozzle is inserted wherein the improvement comprises a three-dimensionally flexible sealing member having an external diameter greater than the external diameter of said fillpipe, an internal diameter smaller than the internal diameter of said fillpipe, the curvature of approximately torus shape and being capable of elastic nonuniform deformation in three dimensions which provides a seal from the atmosphere between the nozzle and the misaligned mouth of the fillpipe.
Claim 10
Dependent Claim
98 words
A curved liquid dispensing nozzle adapted for misaligned engagement within a fillpipe and having a vapor recovery conduit means which is internal to the mouth of said fillpipe when the nozzle is inserted wherein the improvement comprises a three-dimensionally flexible sealing member having an external diameter greater than the external diameter of said fillpipe, an internal diameter smaller than the internal diameter of said fillpipe, the curvature of approximately torus shape and being capable of elastic nonuniform deformation in three dimensions which provides a seal from the atmosphere between the nozzle and the misaligned mouth of the fillpipe.
References Cited (Backward Citations)
US2908299A
Cited
FR1292909A
Cited
US3550987A
Cited
US3830267A
Cited
US3845792A
Cited
US3805857A
Cited
US3897810A
Cited
US3828116A
Cited
US3897088A
Cited
US3989072A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-03-18 | 1988-09-17 | 1989-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-18 | 1992-09-17 | 1993-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-18 | 1996-09-17 | 1997-03-19 | $7700.00 | Window Closed / Lapsed |