Patent US4746089A successfully refreshed from Google Patents.
US4746089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic fuel tank cap holding system
Assignee: Individual
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Filing: 1987-03-23
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Granted: 1988-05-24
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Expires: 2007-03-23
Abstract
Abstract A flat magnet is secured to the interior surface of the access door for an automotive vehicle fuel tank filling inlet. When the vehicle is to be refueled the fuel tank cap is removed from the filling inlet and placed against the magnet on the interior surface of the access door. The fuel tank cap is thereupon releasably held by the force of magnetism against the inside surface of the access door until it is removed therefrom and replaced on the filling inlet. The fuel tank cap is thereby safeguarded and loss of the cap is prevented.
Inventors
- 👤 Earl Clapper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:40
CPC Classifications
B; B60; B60K; B60K15/00; B60K15/03; B60K15/04; B60K15/05; Y; Y10; Y10S; Y10S220/00; Y10S220/33
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
119 words
A method of holding an automotive vehicle fuel tank cap during refueling, which cap has an exteriorly facing top portion and an interiorly directed portion with means for contacting and engaging a filler neck comprising: mounting a magnet upon the inside of an automotive vehicle fuel tank inlet access door, removing said fuel tank cap from the fuel tank inlet, and placing said exteriorly facing portion of said fuel tank cap against said magnet, whereby said fuel tank cap is releasably held to said fuel tank inlet access door by the force of magnetism so that said interiorly directed portion of said cap is held directed away from and out of contact with said fuel tank inlet access door.
Claim 2
Independent Claim
119 words
A method of holding an automotive vehicle fuel tank cap during refueling, which cap has an exteriorly facing top portion and an interiorly directed portion with means for contacting and engaging a filler neck comprising: mounting a magnet upon the inside of an automotive vehicle fuel tank inlet access door, removing said fuel tank cap from the fuel tank inlet, and placing said exteriorly facing portion of said fuel tank cap against said magnet, whereby said fuel tank cap is releasably held to said fuel tank inlet access door by the force of magnetism so that said interiorly directed portion of said cap is held directed away from and out of contact with said fuel tank inlet access door.
Claim 3
Dependent Claim
29 words
A method according to claim 1 wherein said fuel tank cap is constructed of non-ferrous materials and further comprising permanently mounting a ferrous plate on said fuel tank cap.
Claim 4
Independent Claim
128 words
A method of preventing the loss during refueling of an automotive vehicle fuel tank cap having an exteriorly facing top portion and an interiorly directed portion with means for contacting and engaging a filler neck of an automotive vehicle having a fuel tank filler inlet access door adjacent to said filler neck comprising: mounting a flat magnet on the isnide surface of said fuel tank inlet access door, and placing said exteriorly facing top portion of said fuel tank cap against said magnet while refueling, whereby said top of said fuel tank cap is held to said access door by the force of magnetism and said interiorly directed portion of said cap is held directed away from and out of contact with said fuel tank inlet access door.
Claim 5
Independent Claim
128 words
A method of preventing the loss during refueling of an automotive vehicle fuel tank cap having an exteriorly facing top portion and an interiorly directed portion with means for contacting and engaging a filler neck of an automotive vehicle having a fuel tank filler inlet access door adjacent to said filler neck comprising: mounting a flat magnet on the isnide surface of said fuel tank inlet access door, and placing said exteriorly facing top portion of said fuel tank cap against said magnet while refueling, whereby said top of said fuel tank cap is held to said access door by the force of magnetism and said interiorly directed portion of said cap is held directed away from and out of contact with said fuel tank inlet access door.
Claim 6
Dependent Claim
30 words
A method according to claim 3 wherein said fuel tank cap is not attracted by magnetism and further comprising permanently securing a ferrous metal plate to said fuel tank cap.
Claim 7
Dependent Claim
24 words
A method according to claim 4 further comprising using double sided pressure sensitive adhesive tape to secure said plate to said fuel tank cap.
Claim 8
Dependent Claim
23 words
A method according to claim 3 further comprising using double sided pressure sensitive adhesive tape to secure said magnet to said access door.
Claim 9
Dependent Claim
137 words
In a method of safeguarding an automotive vehicle fuel tank cap of an automotive vehicle having a fuel tank filling inlet and a fuel tank filling inlet access door adjacent to said fuel tank filling inlet, in which said fuel tank cap has an exteriorly facing top portion and an interiorly directed portion with means for contacting and engaging said filler neck, the improvement comprising mounting a magnet upon the inside surface of said access door, removing said fuel tank cap from said filling inlet, and placing said top of said fuel tank cap against said magnet, whereby the top of said fuel tank cap is held against said access door by the force of magnetism and said interiorly directed portion is held directed away from and out of contact with said fuel tank inlet access door.
Claim 10
Dependent Claim
137 words
In a method of safeguarding an automotive vehicle fuel tank cap of an automotive vehicle having a fuel tank filling inlet and a fuel tank filling inlet access door adjacent to said fuel tank filling inlet, in which said fuel tank cap has an exteriorly facing top portion and an interiorly directed portion with means for contacting and engaging said filler neck, the improvement comprising mounting a magnet upon the inside surface of said access door, removing said fuel tank cap from said filling inlet, and placing said top of said fuel tank cap against said magnet, whereby the top of said fuel tank cap is held against said access door by the force of magnetism and said interiorly directed portion is held directed away from and out of contact with said fuel tank inlet access door.
Claim 11
Dependent Claim
28 words
A method according to claim 7 further comprising using tape having pressure sensitive adhesive on both of its opposite sides to secure said magnet to said access door.
Claim 12
Dependent Claim
53 words
A method according to claim 7 wherein said fuel tank cap is not attracted by the force of magnetism further comprising securing a ferrous plate to said fuel tank cap, whereby said ferrous plate holds said fuel tank cap to said access door when said fuel tank cap is placed against said magnet.
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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) | 1991-05-24 | 1991-11-23 | 1992-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-24 | 1995-11-23 | 1996-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-24 | 1999-11-23 | 2000-05-24 | $7700.00 | Window Closed / Lapsed |