Patent US4460104A successfully refreshed from Google Patents.
US4460104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
O-Ring for sealing between fuel cap and filler neck of automobiles
Assignee: Marelli Corp
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Filing: 1983-06-27
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Granted: 1984-07-17
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Expires: 2003-06-27
Abstract
Abstract An O-ring for providing hermetic sealing between a fuel tank filler neck and its cap has a single main body with an integrally formed annular lip projecting outwardly from the main body; the lip has an inclined lower surface for contacting a corresponding inclined upper surface of said filler neck, such lower surface defining an angle of inclination θ 1 with respect to the horizontal principal extent of the O-ring body, the filler neck upper surface defining an angle of inclination θ 3 with respect to horizontal, θ 1 being substantially less than θ 3 , the lip being deformable upon tightening of said cap to bring the lip lower surface into hermetically sealing contact with the filler neck upper surface.
Inventors
- 👤 Akira Kitsukawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:12
CPC Classifications
B; B65; B65D; B65D53/00; B65D53/02; Y; Y10; Y10S; Y10S220/00; Y10S220/33
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
124 words
For use in providing a seal between a filler neck and a cap, an O-ring characterized by a single main body having an integrally formed annular lip projecting outwardly from the main body, said lip having an inclined lower surface for contacting a corresponding inclined upper surface of said filler neck, said lip lower surface defining an angle of inclination θ 1 with respect to the horizontal principal extent of the O-ring body, said filler neck upper surface defining an angle of inclination θ 3 with respect to horizontal, θ 1 being substantially less than θ 3 , said annular lip being deformable upon tightening of said cap to bring said lip lower surface into hermetically sealing contact with said filler neck upper surface.
Claim 2
Dependent Claim
124 words
For use in providing a seal between a filler neck and a cap, an O-ring characterized by a single main body having an integrally formed annular lip projecting outwardly from the main body, said lip having an inclined lower surface for contacting a corresponding inclined upper surface of said filler neck, said lip lower surface defining an angle of inclination θ 1 with respect to the horizontal principal extent of the O-ring body, said filler neck upper surface defining an angle of inclination θ 3 with respect to horizontal, θ 1 being substantially less than θ 3 , said annular lip being deformable upon tightening of said cap to bring said lip lower surface into hermetically sealing contact with said filler neck upper surface.
Claim 3
Dependent Claim
45 words
An O-ring according to claim 1 and further characterized by θ 1 , being less than θ 3 by an amount sufficient for causing said lip lower surface to come wholly into contact with said filler neck inclined surface upon said cap being fully tightened.
Claim 4
Dependent Claim
24 words
An O-ring according to claim 2 and further characterized by θ 1 being less than θ 3 by from about 10° to about 15°.
Claim 5
Dependent Claim
17 words
An O-ring according to claim 3, θ 1 being approximately 30° and θ 3 being approximately 45°.
Claim 6
Dependent Claim
33 words
An O-ring according to claim 1 and further characterized by said annular lip having an upper surface defining an angle θ 2 with said main ring body of approximately from 70° to 120°.
Claim 7
Dependent Claim
58 words
An O-ring according to claim 1 and further characterized by said main body defining an internal surface for surroundingly engaging a corresponding portion of said cap and an upper surface extending beneath a corresponding overlying portion of said cap and said main body including a protuberance extending upwardly from its upper surface for contacting said cap overlying portion.
Claim 8
Dependent Claim
24 words
An O-ring according to claim 6 and further characterized by said protuberance being of arcuate cross-section which is compressed upon tightening of said cap.
Claim 9
Dependent Claim
25 words
An O-ring according to claim 6 and further characterized by said protuberance being of rectangular cross-section in a region for contacting said cap overlying portion.
Claim 10
Dependent Claim
22 words
An O-ring according to claim 6 and further characterized by said internal surface being provided with an annular recess of arcuate section.
Claim 11
Dependent Claim
33 words
An O-ring according to claim 1 and further characterized by said angle of inclination θ 1 increasing to and becoming the same as angle of inclination θ 3 upon tightening of said cap.
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) | 1987-07-17 | 1988-01-16 | 1988-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-17 | 1992-01-16 | 1992-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-17 | 1996-01-16 | 1996-07-17 | $7700.00 | Window Closed / Lapsed |