US4854471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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 06:39
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.
References Cited (Backward Citations)
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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 |