Patent US5106121A successfully refreshed from Google Patents.
Patent US3929250A successfully refreshed from Google Patents.
US3929250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasoline tank plug
Assignee: Individual
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Filing: 1975-02-03
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Granted: 1975-12-30
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Expires: 1995-02-03
Abstract
Abstract A device for plugging gasoline tank holes and the like, comprising a bolt, a radially expandable sleeve seal on the bolt, a gasket over the sleeve seal, the outside diameter of the gasket being greater than the diameter of the hole to be repaired, a washer on the bolt having a cavity for sealingly receiving the gasket, and one or more nuts on an intermediate threaded portion of the bolt. One end of the bolt is flared and the other end has a grippable surface. When the device is inserted in a hole with the gasket and washer abutting the perimeter of the hole outside the tank, the action of the nut on the washer causes the flared end of the bolt to expand the sleeve seal to a diameter greater than that of the hole. The sleeve seal is thereby engaged and anchored on the edges of the hole interiorly of the tank while the gasket seals the hole.
Inventors
- 👤 John Abbate
- 👤 Warren R Jewett
- 👤 William H Mason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:45
CPC Classifications
B; B60; B60K; B60K15/00; Y; Y10; Y10S; Y10S411/00; Y10S411/904; Y10S411/908
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
194 words
A device for plugging gasoline tanks and the like, comprising: a bolt having a flared end, a grippable end and a threaded portion between said ends; a non-metallic, radially expandable sleeve seal slidably fitted on said bolt below said flared end and having an outside diameter adapting said sleeve seal to be received in a hole of predetermined diameter in said gasoline tank; a gasket slidably fitted on said sleeve seal, the outside diameter of said gasket being greater than the diameter of said hole; a washer on said bolt, said washer having a cavity for sealingly receiving said gasket; and at least one nut on said threaded portion in abutment with said washer on the opposite face thereof from said cavity; said nut acting on said washer and bolt, when said washer and gasket abut the rim of said hole in said tank, whereby said flared end of said bolt causes said sleeve seal to expand outwardly of said hole and thereby to engage and to anchor on the edges of said hole interiorly of said tank, and said gasket sealingly engages the rim and edges of said hole exteriorly of said tank.
Claim 2
Independent Claim
194 words
A device for plugging gasoline tanks and the like, comprising: a bolt having a flared end, a grippable end and a threaded portion between said ends; a non-metallic, radially expandable sleeve seal slidably fitted on said bolt below said flared end and having an outside diameter adapting said sleeve seal to be received in a hole of predetermined diameter in said gasoline tank; a gasket slidably fitted on said sleeve seal, the outside diameter of said gasket being greater than the diameter of said hole; a washer on said bolt, said washer having a cavity for sealingly receiving said gasket; and at least one nut on said threaded portion in abutment with said washer on the opposite face thereof from said cavity; said nut acting on said washer and bolt, when said washer and gasket abut the rim of said hole in said tank, whereby said flared end of said bolt causes said sleeve seal to expand outwardly of said hole and thereby to engage and to anchor on the edges of said hole interiorly of said tank, and said gasket sealingly engages the rim and edges of said hole exteriorly of said tank.
Claim 3
Dependent Claim
42 words
A device as in claim 1 wherein the wall of said sleeve seal has a portion of reduced thickness, said reduced thickness wall portion being adapted to bulge outwardly interiorly of said tank when said nut acts on said washer and bolt.
Claim 4
Dependent Claim
20 words
A device as in claim 2 wherein said reduced thickness wall portion is intermediate the ends of said sleeve seal.
Claim 5
Dependent Claim
136 words
A device as in claim 2 wherein said sleeve seal comprises a first sleeve seal and said reduced thickness wall portion is formed on the end of said first sleeve seal proximate to said washer, said device further including a second sleeve seal of a non-metallic, radially expandable material, said second sleeve seal being slidably fitted on said bolt below said first sleeve seal and having an outside diameter adapting it to be received in said hole of predetermined diameter, said gasket slidably fitting on said second sleeve seal, said second sleeve seal having a chamfered edge and being arranged adjacent said reduced wall thickness portion of said first sleeve seal, such that said chamfered edge cooperates with the action of said nut on said bolt to cause said bulge of said reduced wall thickness portion.
Claim 6
Dependent Claim
16 words
A device as in claim 1 wherein said sleeve seal abuts the floor of said cavity.
Claim 7
Dependent Claim
19 words
A device as in claim 1 wherein said sleeve seal abuts the face of said washer adjacent said cavity.
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) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |