US3732788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pavement joint seals
Assignee: BROWN CO D
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Filing: 1971-04-26
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Granted: 1973-05-15
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Expires: 1991-04-26
Abstract
Abstract Elongated, hollow elastomer seals particularly useful for the sealing of concrete pavement joints, bridge deck joints, etc. against intrusion by liquids and incompressible solids and embodying an elongated, preferably transversely concave top wall; an elongated bottom wall; substantially flat, elongated side walls; and an internal web structure embodying a vertical web substantially midway between the side walls with the lower end of the vertical web spaced from the bottom wall and at least two pairs of lateral webs extending from opposite sides of the vertical web, at least one of which pairs undergoes a toggle-like action when the seal is laterally compressed.
Inventors
- 👤 D Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:02
CPC Classifications
E; E01; E01D; E01D19/00; E01D19/06; E01C; E01C11/00; E01C11/02; E01C11/04; E01C11/10; E01C11/106
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
104 words
An elongated, elastomer joint seal having a substantially symmetrically concave top wall of V-shape, substantially parallel side walls, and a bottom wall, a vertical web substantially parallel to and substantially midway between said side walls, the upper longitudinal edge of said web being joined to the nadir of said top wall and the lower longitudinal edge of said web being spaced from said bottom wall, and lateral webs connecting said vertical web and said side walls and including a pair of opposed, diagonally downwardly sloping webs which invert in toggle-like fashion when said vertical web is pushed downwardly as said seal is laterally compressed.
Claim 2
Dependent Claim
104 words
An elongated, elastomer joint seal having a substantially symmetrically concave top wall of V-shape, substantially parallel side walls, and a bottom wall, a vertical web substantially parallel to and substantially midway between said side walls, the upper longitudinal edge of said web being joined to the nadir of said top wall and the lower longitudinal edge of said web being spaced from said bottom wall, and lateral webs connecting said vertical web and said side walls and including a pair of opposed, diagonally downwardly sloping webs which invert in toggle-like fashion when said vertical web is pushed downwardly as said seal is laterally compressed.
Claim 3
Dependent Claim
54 words
A joint seal as claimed in claim 1 wherein said bottom wall is a V-shaped wall joined to the lower edges of said side walls, and said lateral webs constitute (a) said pair of opposed, downwardly sloping webs as the lower pair of webs and (b) an upper pair of opposed, upwardly sloping webs.
Claim 4
Dependent Claim
37 words
A joint seal as claimed in claim 1 wherein said lateral webs constitute (a) said pair of opposed, downwardly sloping webs as the lower pair of webs and (b) an upper pair of opposed, upwardly sloping webs.
Claim 5
Dependent Claim
22 words
A joint seal as claimed in claim 3 wherein said downwardly sloping webs intersect said side walls adjacent the lower edges thereof.
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) | 1976-05-14 | 1976-11-13 | 1977-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-14 | 1980-11-13 | 1981-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-14 | 1984-11-13 | 1985-05-15 | $7700.00 | Window Closed / Lapsed |