Patent US3694976A successfully refreshed from Google Patents.
US3694976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion joint covering
Assignee: TECHNICAL COATINGS Inc
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Filing: 1970-11-13
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Granted: 1972-10-03
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Expires: 1990-11-13
Abstract
Abstract An expansion joint cover includes an insulating cushion to be laid over a gap in a structure to be sealed. An intermediate flexible strip is sandwiched between the cushion and an outer flexible strip, both strips extending beyond the cushion. First and second rigid strips are attached to that side of the intermediate strip facing the outer strip adjacent to the edge of the cushion. Preferably, these rigid strips are perforated to help relieve shear strain when structure on opposite sides of the joint tends to shift along the length of the joint, and thermal stresses from ambient temperature changes.
Inventors
- 👤 Stanley W Warshaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:29
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/66; E04B1/68; E04B1/6815; E04D; E04D13/00; E04D13/15; E04D13/151
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
149 words
Expansion joint cover apparatus comprising, first cushioning strip means for covering a gap between two structural members to be joined by said expansion joint cover means and having a width sufficient to span said gap, intermediate flexible strip means wider than said cushioning strip means secured to a first side of said cushioning strip means along the entire width of said cushioning strip opposite the side thereof adapted for covering said gap and terminating in left and right intermediate flaps extending beyond the width of said cushioning strip means, upper flexible strip means wider than said cushioning strip means and joined to said intermediate strip means between said left and right intermediate flaps and having left and right upper flaps, and left and right rigid strips secured to said left and right intermediate strip flaps respectively closely adjacent to the junction with a respective left and right upper flap.
Claim 2
Dependent Claim
149 words
Expansion joint cover apparatus comprising, first cushioning strip means for covering a gap between two structural members to be joined by said expansion joint cover means and having a width sufficient to span said gap, intermediate flexible strip means wider than said cushioning strip means secured to a first side of said cushioning strip means along the entire width of said cushioning strip opposite the side thereof adapted for covering said gap and terminating in left and right intermediate flaps extending beyond the width of said cushioning strip means, upper flexible strip means wider than said cushioning strip means and joined to said intermediate strip means between said left and right intermediate flaps and having left and right upper flaps, and left and right rigid strips secured to said left and right intermediate strip flaps respectively closely adjacent to the junction with a respective left and right upper flap.
Claim 3
Dependent Claim
15 words
Expansion joint cover apparatus in accordance with claim 1 wherein said rigid strips are perforated.
Claim 4
Dependent Claim
53 words
Expansion joint cover apparatus in accordance with claim 1 wherein the widths of said left and right intermediate flaps extend beyond the widths of said left and right rigid strips respectively, and the widths of said left and right upper flaps extend beyond the widths of said left and right intermediate flaps respectively.
Claim 5
Dependent Claim
15 words
Expansion joint cover apparatus in accordance with claim 3 wherein said rigid striPs are perforated.
Claim 6
Dependent Claim
120 words
Expansion joint cover apparatus in accordance with claim 4 for being fastened with roofing nails having a head of a first diameter and a shank of a second diameter less than said first diameter wherein the openings in said perforated metal strips have a span across each opening at least in a direction along the length of said gap that is greater than said second diameter and at least another dimension that is smaller than said first diameter so that a roofing nail shank may pass through a perforation while the roofing nail head is prevented from passing therethrough and said rigid strip may move slightly relative to the roofing nail in a direction along the length of said gap.
Claim 7
Dependent Claim
129 words
An expansion joint cover in accordance with claim 5 and further comprising, said structural members separated by said gap, means for fastening said left and right intermediate flaps to respective ones of said structural members with said first cushioning strip means covering said gap, the latter means including said roofing nails with the shank of each roofing nail passing through a respective opening in said strip and through an intermediate flap which establishes a seal around the roofing nail shank with a portion of the underside of the roofing nail heads in contact with the top of a rigid strip, and means for fastening said left and right upper flaps to respective ones of said structural members with the latter flaps covering the rigid strips and the intermediate flaps.
Claim 8
Dependent Claim
133 words
Expansion joint cover apparatus for covering a gap between two structural members to be joined by said expansion joint cover comprising, first flexible strip mean that is a single continuous homogeneous sheet for covering said gap and having a width sufficient to cover said gap and left and right ends of said sheet comprising left and right first strip flaps respectively extending beyond the width of said gap, second flexible strip means wider than said first flexible strip means and joined to said first flexible strip means between said left and right first strip flaps and having left and right second strip flaps, and left and right rigid strips secured to said left and right first strip flaps respectively closely adjacent to the junction with a respective left and right second strip flap.
Claim 9
Dependent Claim
133 words
Expansion joint cover apparatus for covering a gap between two structural members to be joined by said expansion joint cover comprising, first flexible strip mean that is a single continuous homogeneous sheet for covering said gap and having a width sufficient to cover said gap and left and right ends of said sheet comprising left and right first strip flaps respectively extending beyond the width of said gap, second flexible strip means wider than said first flexible strip means and joined to said first flexible strip means between said left and right first strip flaps and having left and right second strip flaps, and left and right rigid strips secured to said left and right first strip flaps respectively closely adjacent to the junction with a respective left and right second strip flap.
Claim 10
Dependent Claim
15 words
Expansion joint cover apparatus in accordance with claim 7 wherein said rigid strips are perforated.
Claim 11
Dependent Claim
120 words
Expansion joint cover apparatus in accordance with claim 8 for being fastened with roofing nails having a head of a first diameter nd a shank of a second diameter less than said first diameter wherein the openings in said perforated rigid strips have a span across each opening at least in a direction along the length of said gap that is greater than said second diameter and at least another dimension that is smaller than said first diameter so that a roofing nail shank may pass through a perforation while the roofing nail head is prevented from passing therethrough and said metal strip may move slightly relative to the roofing nail in a direction along the length of said gap.
Claim 12
Dependent Claim
130 words
An expansion joint cover in accordance with claim 9 and further comprising, said structural members separated by said gap, means for fastening said left and right first strip flaps to respective ones of said structural members with the mid-secton of said first flexible strip means covering said gap, the latter means including said roofing nails with the shank of each roofing nail passing through a respective opening in said strip and through an intermediate flap which establishes a seal around the roofing nail shank with a portion of the underside of the roofing nail heads in contact with the top of a rigid strip, and means for fastening said left and right second strip flaps to respective ones of said structural members with the latter flaps covering the rigid strips.
References Cited (Backward Citations)
US2314523A
Cited
US3093934A
Cited
US3300913A
Cited
US3470598A
Cited
US3375621A
Cited
US3581450A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |