Patent US4416391A successfully refreshed from Google Patents.
US4416391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seals-caps for fuel tanks
Assignee: Produits Industriels de L'ouest Cie
•
Filing: 1982-08-13
•
Granted: 1983-11-22
•
Expires: 2002-08-13
Abstract
Abstract A seal cap, particularly for fuel tanks, is provided, having a body comprising a cylindrical prolongation directed toward a fuel tank spout, in which fits a wing supporting element, such wings travelling along a helicoidal gradient located inside the spout, a seal gasket preferably being welded between a shoulder of the element and the lower edge of the cylindrical prolongation, and a U-shaped ring being pushed against the gasket by a spring means which rests upon the inner side of the cap.
Inventors
- 👤 Jean-Michel Sarrazin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:58
CPC Classifications
B; B60; B60K; B60K15/00; B60K15/03; B60K15/04; B60K15/0406; Y; Y10; Y10S; Y10S220/00; Y10S220/32; Y10S220/33
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
79 words
A seal-cap, particularly for fuel tanks, comprising a body having a cylindrical prolongation directed toward a spout of the fuel tank, an element formed thereon having radially extending wings which travel along a helicoidal gradient located inside said fuel spout, a seal gasket being welded between a shoulder of said element and the lower edge of said cylindrical prolongation, a U-shaped ring being urged against said gasket by spring means which rest upon the inner side of said cap.
Claim 2
Dependent Claim
79 words
A seal-cap, particularly for fuel tanks, comprising a body having a cylindrical prolongation directed toward a spout of the fuel tank, an element formed thereon having radially extending wings which travel along a helicoidal gradient located inside said fuel spout, a seal gasket being welded between a shoulder of said element and the lower edge of said cylindrical prolongation, a U-shaped ring being urged against said gasket by spring means which rest upon the inner side of said cap.
Claim 3
Dependent Claim
22 words
A seal-cap according to claim 1, wherein said seal gasket is a natural or synthetic flat rubber gasket, preferably a stamped-out gasket.
Claim 4
Dependent Claim
14 words
A seal-cap according to claim 1, wherein said spring means is a flat spring.
Claim 5
Dependent Claim
21 words
A seal-cap according to claim 1, wherein said spring means is a helicoidal spring disposed on several points of said ring.
Claim 6
Dependent Claim
50 words
A seal-cap according to claim 1, characterized in that the dimensions of said ring and said helicoidal gradient are defined in a way to bring said ring into contact with the lower edge of said cap, as said wings of said element are stopped at the end of the gradient.
References Cited (Backward Citations)
US3703245A
Cited
FR2185238A5
Cited
FR2274850B1
Cited
DE2630972A1
Cited
US4081102A
Cited
US4294375A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-21 | 1987-05-23 | 1987-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-21 | 1991-05-23 | 1991-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-21 | 1995-05-23 | 1995-11-22 | $7700.00 | Window Closed / Lapsed |