US3960462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing member
Assignee: Acme Highway Products Corp
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Filing: 1975-07-21
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Granted: 1976-06-01
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Expires: 1995-07-21
Abstract
Abstract A resilient sealing member for use in an expansion joint comprising a tubular body having an internal truss structure which includes a pair of intersecting crossbars extending between the sidewalls and bottom wall of the tubular body. The sealing member, being of the low pressure type, further includes a vertically disposed compression bar extending between the midportion of the top wall of the member and the intersection of the crossbars to exert a downward pressure on the crossbars during compression of the member to thus reduce some of the sidewall pressures in a manner resulting in a substantially level pressure profile across the vertical dimension of the sidewalls.
Inventors
- 👤 James J. Kerschner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:01
CPC Classifications
E; E01; E01C; E01C11/00; E01C11/02; E01C11/04; E01C11/10; E01C11/106; E01D; E01D19/00; E01D19/06; Y; Y10; Y10S; Y10S277/00; Y10S277/921
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
101 words
A sealing member comprising: a resiliently yieldable tubular body having a top wall, a bottom wall and opposite sidewalls, an internal truss structure including a pair of crossbars extending downwardly at an angle from said sidewalls at points spaced below the upper ends thereof to said bottom wall at points spaced from the opposite ends thereof, said crossbars intersecting intermediate their opposite ends, and a generally vertically disposed compression bar extending from the midportion of said top wall to a termination with the intersection of said crossbars for reducing and equalizing the pressure along said sidewalls during compression of said member.
Claim 2
Dependent Claim
101 words
A sealing member comprising: a resiliently yieldable tubular body having a top wall, a bottom wall and opposite sidewalls, an internal truss structure including a pair of crossbars extending downwardly at an angle from said sidewalls at points spaced below the upper ends thereof to said bottom wall at points spaced from the opposite ends thereof, said crossbars intersecting intermediate their opposite ends, and a generally vertically disposed compression bar extending from the midportion of said top wall to a termination with the intersection of said crossbars for reducing and equalizing the pressure along said sidewalls during compression of said member.
Claim 3
Dependent Claim
15 words
A sealing member as set forth in claim 1 comprising an integral, one-piece construction throughout.
Claim 4
Dependent Claim
47 words
A sealing member according to claim 1 wherein said top wall has downwardly sloping portions forming a V-shaped recess and adapted to fold into the upper space defined by said intersecting crossbars when said sidewalls are pressed toward each other to thereby urge said compression bar downwardly.
Claim 5
Dependent Claim
40 words
A sealing member according to claim 3 wherein said top wall includes a pair of angularly related portions extending inwardly and slightly downwardly from said sidewalls and joined together at a common juncture at an angle slightly less than 180°.
Claim 6
Dependent Claim
32 words
A sealing member according to claim 3 wherein said bottom wall has downwardly sloping portions forming a V-shaped recess and adapted to fold downwardly when said sidewalls are pressed toward each other.
Claim 7
Dependent Claim
31 words
A sealing member as set forth in claim 5 wherein said portions of said bottom wall slope downwardly at an angle greater than the corresponding said portions of said top wall.
Claim 8
Dependent Claim
73 words
A sealing member as set forth in claim 3 wherein each of said crossbars includes a first and second portion, each said first portion extending downwardly from its respective sidewall to intersect with the lower end of said compression bar and each said second portion extending downwardly from an intersection with the lower end of said compression bar at a downward angle greater than said first portion to intersect with said bottom wall.
Claim 9
Dependent Claim
26 words
A sealing member as set forth in claim 7 wherein each said first portion of said crossbars extends downwardly from the midportion of its respective sidewall.
Claim 10
Dependent Claim
34 words
A sealing member as set forth in claim 8 wherein said bottom wall has downwardly sloping portions forming a V-shaped recess and adapted to fold downwardly when said sidewalls are pressed toward each other.
Claim 11
Dependent Claim
31 words
A sealing member as set forth in claim 9 wherein said portions of said bottom wall slope downwardly at an angle greater than the corresponding said portions of said top wall.
Claim 12
Dependent Claim
45 words
A sealing member as set forth in claim 10 wherein each said second portion of said crossbars intersects said bottom wall portions at locations adjacent to the intersection of said sidewalls therewith, but being spaced from said intersection of said sidewalls and said bottom wall.
References Cited (Backward Citations)
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Cited
US3608442A
Cited
US3645176A
Cited
US3762826A
Cited
US3881834A
Cited
US3732788A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-01 | 1979-12-01 | 1980-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-01 | 1983-12-01 | 1984-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-01 | 1987-12-01 | 1988-06-01 | $7700.00 | Window Closed / Lapsed |