Patent US1763597A successfully refreshed from Google Patents.
Patent US4080086A successfully refreshed from Google Patents.
US4080086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roadway joint-sealing apparatus
Assignee: Watson Bowman Associates Inc
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Filing: 1975-09-24
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Granted: 1978-03-21
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Expires: 1995-09-24
Abstract
Abstract Sealing apparatus for joints in roadways which comprises elongated anchor pads secured by studs and nuts to the surfaces of concrete slabs on opposite sides of a gap therebetween and a flexible, resilient, elongated, sealing member extending between and integral with said pads, said pads preferably being formed of a relatively hard elastomeric material having rock fragments embedded therein and reinforced by longitudinally extending metal plates therein. Means is provided for connecting sections of said sealing apparatus end-to-end and preventing leakage at their contacting ends.
Inventors
- 👤 Steward Charles Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:28
CPC Classifications
E; E01; E01D; E01D19/00; E01D19/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
113 words
Roadway joint-sealing apparatus which comprises a pair of elongated, substantially parallel, anchor pads adapted to be secured, respectively, to the upper surface of a roadway on opposite sides of a joint gap therein, said anchor pads being hard and wear-resistant; a flexible, resilient, sealing member extending longitudinally between said pads and integral therewith, said member being tubular in cross section; said pads and said sealing member being formed of elastomeric material and said pads being much harder than said sealing member; two sections of said apparatus being longitudinally aligned and abutted and a separate, short, flexible tubular member being internally secured in the adjoining ends of said tubular sealing members of said sections.
Claim 2
Dependent Claim
113 words
Roadway joint-sealing apparatus which comprises a pair of elongated, substantially parallel, anchor pads adapted to be secured, respectively, to the upper surface of a roadway on opposite sides of a joint gap therein, said anchor pads being hard and wear-resistant; a flexible, resilient, sealing member extending longitudinally between said pads and integral therewith, said member being tubular in cross section; said pads and said sealing member being formed of elastomeric material and said pads being much harder than said sealing member; two sections of said apparatus being longitudinally aligned and abutted and a separate, short, flexible tubular member being internally secured in the adjoining ends of said tubular sealing members of said sections.
Claim 3
Dependent Claim
21 words
Roadway joint-sealing apparatus as defined in claim 1 wherein each of said pads has a longitudinally extending reinforcing metal plate therein.
Claim 4
Dependent Claim
27 words
Roadway joint-sealing apparatus as defined in claim 2 wherein at least a portion of said plate is positioned normal to the top and bottom of said pad.
Claim 5
Dependent Claim
17 words
Roadway joint-sealing apparatus as defined in claim 3 wherein said plate is channel shaped in cross section.
Claim 6
Dependent Claim
16 words
Roadway joint-sealing apparatus as defined in claim 3 wherein said plate is L-shaped in cross section.
Claim 7
Dependent Claim
24 words
Roadway joint-sealing apparatus as defined in claim 3 wherein said plate is one of a plurality of reinforcing plates in each of said pads.
Claim 8
Dependent Claim
20 words
Roadway joint-sealing apparatus as defined in claim 1 wherein said anchor pads have rock fragments embedded in said elastomeric material.
Claim 9
Dependent Claim
20 words
Roadway joint-sealing apparatus as defined in claim 2 wherein said anchor pads have rock fragments embedded in said elastomeric material.
Claim 10
Dependent Claim
20 words
Roadway joint-sealing apparatus as defined in claim 3 wherein said anchor pads have rock fragments embedded in said elastomeric material.
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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) | 1981-03-20 | 1981-09-19 | 1982-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-20 | 1985-09-19 | 1986-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-20 | 1989-09-19 | 1990-03-21 | $7700.00 | Window Closed / Lapsed |