Patent US4854471A successfully refreshed from Google Patents.
US4854471A
Expired / Lapsed
US
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Fuel cap
Assignee: Toyota Motor Corp
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Filing: 1988-09-30
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Granted: 1989-08-08
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Expires: 2008-09-30
Abstract
Abstract A fuel cap comprises a cap body, a flange member projecting outward in radial direction on upper side of the cap body, and a weak portion which is easily broken and provided at the flange member and enables separation of the flange member from the cap body. The weak portion is formed by a plurality of V-like grooves at upper surface side which are formed on the upper surface of the flange member in concentric relation and a plurality of V-like grooves at lower surface side which are formed on the lower surface of the flange member in concentric relation and adjacent to the V-like grooves at upper surface side.
Inventors
- 👤 Joji Kasugai
- 👤 Satoshi Toki
- 👤 Masayuki Ide
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:00
CPC Classifications
B; B60; B60K; B60K15/00; B60K15/03; B60K15/04; B60K15/0406; Y; Y10; Y10S; Y10S220/00; Y10S220/33
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
114 words
A fuel cap comprising; (a) a cap body; (b) a flange member projecting outward in radial direction on upper side of said cap body; and (c) a weak portion being easily broken and provided at said flange member so as to enable separation of the flange member from the cap body, said weak portion being formed by a plurality of V-like grooves at upper surface side which are formed on the upper surface of the flange member in concentric relation and a plurality of V-like grooves at lower surface side which are formed on the lower surface of the flange member in concentric relation and adjacent to the V-like grooves at upper surface side.
Claim 2
Dependent Claim
114 words
A fuel cap comprising; (a) a cap body; (b) a flange member projecting outward in radial direction on upper side of said cap body; and (c) a weak portion being easily broken and provided at said flange member so as to enable separation of the flange member from the cap body, said weak portion being formed by a plurality of V-like grooves at upper surface side which are formed on the upper surface of the flange member in concentric relation and a plurality of V-like grooves at lower surface side which are formed on the lower surface of the flange member in concentric relation and adjacent to the V-like grooves at upper surface side.
Claim 3
Dependent Claim
61 words
A fuel cap as set forth in claim 1, wherein said V-like grooves at upper surface side and said V-like grooves at lower surface side are formed respectively in two grooves per each surface, and distance between the two V-like grooves at upper surface side and distance between the two V-like grooves at lower surface side are different from each other.
Claim 4
Dependent Claim
82 words
A fuel cap as set forth in claim 2, wherein the distance between the two V-like grooves at lower surface side is wider than the distance between the two V-like grooves at upper surface side, and the V-like groove at lower surface side positioned inside among the two like grooves at lower surface side is arranged outward in radial direction from position just below the V-like groove at upper surface side positioned inside among the two V-like grooves at upper surface side.
Claim 5
Dependent Claim
76 words
A fuel cap as set forth in claim 2, wherein the distance between the two V-like grooves at lower surface side is wider than the distance between the two V-like grooves at upper surface side, and the V-like groove at lower surface side positioned inside among the two V-like grooves at lower surface side is arranged just below the V-like groove at upper surface side positioned inside among the two V-like grooves at upper surface side.
Claim 6
Dependent Claim
82 words
A fuel cap as set forth in claim 2, wherein the distance between the two V-like grooves at lower surface side is wider than the distance between the two V-like grooves at upper surface side, and the V-like groove at lower surface side positioned inside among the two V-like grooves at lower surface side is arranged inward in radial direction from position just below the V-like groove at upper surface side positioned inside among the two V-like grooves at upper surface side.
Claim 7
Dependent Claim
47 words
A fuel cap as set forth in claim 1, wherein said V-like grooves at upper surface side and said V-like grooves at lower surface side are formed in two grooves or more at least at one side and in three grooves or more at the other side.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-08-07 | 1993-02-06 | 1993-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-07 | 1997-02-06 | 1997-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-07 | 2001-02-06 | 2001-08-08 | $7700.00 | Window Closed / Lapsed |