US4041665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Injection sealable waterstop and method of installing same
Assignee: Vredestein NV
•
Filing: 1976-11-22
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Granted: 1977-08-16
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Expires: 1996-11-22
Abstract
Abstract A waterstop of elastic deformable rubbery material used in concrete structures with a substantially flat middle portion and enlarged side wing anchor sections with elastic or metal anchor strips and sponge material attached to the outer edge of the strips and injection tubes from outside the concrete to the sponge material. The method of installing a waterstop in concrete and after setting injecting a fluid curable or settable material to admit the fluid to the concrete matrix in the region of the sealing extensions.
Inventors
- 👤 Eduard H. L. de Munck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:26
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/66; E04B1/68; E04B1/6806; E02; E02B; E02B3/00; E02B3/16
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
88 words
A water-stop composed of elastic deformable rubbery material for use in concrete structures which comprises a substantially flat middle portion and enlarged side wing anchor portions provided with sealing means, a pad of elastically-deformable sponge material being attached to one surface of at least of each side sealing means and attached to each said pad to as to be sealed thereby, and there being at least one injection tube of sufficient length to reach the outside surface of the concrete in which the water-stop is to be installed.
Claim 2
Dependent Claim
88 words
A water-stop composed of elastic deformable rubbery material for use in concrete structures which comprises a substantially flat middle portion and enlarged side wing anchor portions provided with sealing means, a pad of elastically-deformable sponge material being attached to one surface of at least of each side sealing means and attached to each said pad to as to be sealed thereby, and there being at least one injection tube of sufficient length to reach the outside surface of the concrete in which the water-stop is to be installed.
Claim 3
Dependent Claim
21 words
A water-stop as claimed in claim 1 in which each side sealing means is attached substantially normal to each said pad.
Claim 4
Dependent Claim
23 words
A water-stop as claimed in claim 1 in which there is a strip of elastically-deformable sponge material secured to the flat middle portion.
Claim 5
Dependent Claim
33 words
A water-stop as claimed in claim 1 in which each side tube seal pad is secured to its respective sealing portion and its respective injection tube is secured thereto by a field-installable clamp.
Claim 6
Dependent Claim
16 words
A water-stop as claimed in claim 4 in which the clamp is made of spring wire.
Claim 7
Dependent Claim
16 words
A water-stop as claimed in claim 1 in which said sealing means is of metal material.
Claim 8
Dependent Claim
16 words
A water-stop as claimed in claim 1 in which said sealing means is of elastic material.
Claim 9
Independent Claim
87 words
A method of installing a water-stop element in a concrete structure wherein a water-stop having elastic and/or metal sealing portions is buried in concrete which comprises pouring the concrete and, after the concrete has set, injecting a fluid curable or settable material to improve the seal between the concrete and the sealing portions, the fluid material being injected so as to rupture or displace an elastic sealing material and admit the fluid material to the concrete matrix in the region of the elastic and/or metal sealing portions.
Claim 10
Independent Claim
87 words
A method of installing a water-stop element in a concrete structure wherein a water-stop having elastic and/or metal sealing portions is buried in concrete which comprises pouring the concrete and, after the concrete has set, injecting a fluid curable or settable material to improve the seal between the concrete and the sealing portions, the fluid material being injected so as to rupture or displace an elastic sealing material and admit the fluid material to the concrete matrix in the region of the elastic and/or metal sealing portions.
Claim 11
Dependent Claim
35 words
A method as claimed in claim 8 in which the rupturable or displaceable elastic sealing material is elastic sponge material adhered to the sealing means attached to elastic anchor portions which are buried in concrete.
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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) | 1980-08-15 | 1981-02-14 | 1981-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-15 | 1985-02-14 | 1985-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-15 | 1989-02-14 | 1989-08-16 | $7700.00 | Window Closed / Lapsed |