US4025677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temporary patch for a crack in the wall of a container
Assignee: Belke Manuf Co
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Filing: 1975-12-08
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Granted: 1977-05-24
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Expires: 1995-12-08
Abstract
Abstract A quick patch for a tank comprising a suction cup. The cup is partially filled between its dome or center portion and rim with mastic. A quick setting adhesive is applied to a cleaned surface on the interior tank wall about the crack. The vacuum cup is applied over the crack and the dome portion depressed while the rim is tightly engaged with the surface. The interior of the depressed center portion is pressed against the adhesive and quick-glued in place while the interior is evacuated. In the event that the adhesive fails to hold after a while, the center portion will expand causing the peripheral edge portions of the vacuum cup to adhere to the wall surface of the tank and drawing in the encompassing mastic. In the exterior application the expansion of the center portion serves as an indicia of the failure of the patch.
Inventors
- 👤 Ralph E. Belke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:54
CPC Classifications
B; B65; B65D; B65D90/00; B29; B29C; B29C73/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49718; Y10T29/49732; Y10T428/00; Y10T428/20
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
119 words
A temporary patch for a crack in the wall of a container comprising a suction cup of elastomeric resilient material having a shape-recovering distortable dome portion and a peripheral wall-engaging portion, said dome portion being flexible and adapted upon application of said peripheral portion against the wall to be pressed against said wall in the vicinity of the crack to evacuate air from the interior of the dome; an adhesive bonding said dome in its depressed state to said wall in covering relation to the crack, said dome comprising means for expanding said dome upon failure of said adhesive to bond the same to the wall thereby providing an indication that said patch is not bonded to said wall
Claim 2
Dependent Claim
119 words
A temporary patch for a crack in the wall of a container comprising a suction cup of elastomeric resilient material having a shape-recovering distortable dome portion and a peripheral wall-engaging portion, said dome portion being flexible and adapted upon application of said peripheral portion against the wall to be pressed against said wall in the vicinity of the crack to evacuate air from the interior of the dome; an adhesive bonding said dome in its depressed state to said wall in covering relation to the crack, said dome comprising means for expanding said dome upon failure of said adhesive to bond the same to the wall thereby providing an indication that said patch is not bonded to said wall
Claim 3
Dependent Claim
12 words
The invention according to claim 1 and said adhesive being alpha cyanoacrylate.
Claim 4
Dependent Claim
15 words
The invention according to claim 1 and including a slow setting compound within the dome.
Claim 5
Dependent Claim
22 words
The invention according to claim 1 and said cup comprising angularly related corner-embracing sections for application about a corner of a container.
Claim 6
Dependent Claim
11 words
The invention according to claim 1 and said adhesive being quick-setting.
Claim 7
Dependent Claim
11 words
The invention according to claim 5 and said material being neoprene.
Claim 8
Dependent Claim
18 words
The invention according to claim 1 and said cup being at least partially filled with a mastic material.
Claim 9
Dependent Claim
27 words
The invention according to claim 1 and an additional patch of material bonded to the container on the crack on a side opposite to said suction cup.
Claim 10
Dependent Claim
16 words
The invention according to claim 1 and said suction cup being of elongated generally rectangular shape.
Claim 11
Dependent Claim
27 words
The invention according to claim 1 and said suction cup having a pair of angularly related corner-embracing flange portions, and said dome portion bridging said flange portions.
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) | 1980-05-23 | 1980-11-22 | 1981-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-23 | 1984-11-22 | 1985-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-23 | 1988-11-22 | 1989-05-24 | $7700.00 | Window Closed / Lapsed |