Patent US4058947A successfully refreshed from Google Patents.
US4058947A
Expired / Lapsed
US
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Fire resistant joint system for concrete structures
Assignee: Johns Manville Corp
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Filing: 1975-09-17
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Granted: 1977-11-22
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Expires: 1995-09-17
Abstract
Abstract An improved fire resistive joint system for concrete panel walls and like building structures is disclosed. The cool (or external) side of the joint is sealed by a high performance elastomeric joint sealant, preferably backed up by a closed cell backing material, and the hot (or internal) side of the joint is at least partially filled by a compressible resilient mass of synthetic inorganic refractory fiber.
Inventors
- 👤 Paul Lewis Earle
- 👤 George William Snider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:06
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/92; E04B1/94; E04B1/948; E04B1/66; E04B1/68; E04B1/6801
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
76 words
An improved fire resistive joint system for concrete panel building members which comprises an elastomeric joint sealant completely sealing the joint on the cold side of the panels and a compressible resilient mass of synthetic inorganic refractory fiber filling at least the external portion of the joint on the hot side of the panels, said fiber mass having sufficient resilience to maintain continuous operative contact with both sides of the joint during movements of the joint.
Claim 2
Dependent Claim
76 words
An improved fire resistive joint system for concrete panel building members which comprises an elastomeric joint sealant completely sealing the joint on the cold side of the panels and a compressible resilient mass of synthetic inorganic refractory fiber filling at least the external portion of the joint on the hot side of the panels, said fiber mass having sufficient resilience to maintain continuous operative contact with both sides of the joint during movements of the joint.
Claim 3
Dependent Claim
18 words
The fire resistive joint system of claim 1 wherein said synthetic inorganic refractory fiber predominately comprises aluminosilicate composition.
Claim 4
Dependent Claim
27 words
The fire resistive joint system of claim 1 wherein said elastomeric joint sealant is selected from the group consisting of polysulfides, acrylics, silicones, polyurethanes, and polyurethane polyepoxides.
Claim 5
Dependent Claim
17 words
The fire resistive joint system of claim 3 wherein said elastomeric joint sealant comprises a polyurethane polyepoxide.
Claim 6
Dependent Claim
17 words
The fire resistive joint system of claim 2 wherein said elastomeric joint sealant comprises a polyurethane polyepoxide.
Claim 7
Dependent Claim
35 words
The fire resistive joint system of claim 1 wherein a closed cell backing member is placed in contact with said elastomeric joint sealant and between the elastomeric joint sealant and said mass of refractory fiber.
Claim 8
Dependent Claim
28 words
The fire resistive joint system of claim 1 wherein said mass of refractory fiber substantially fills that portion of the joint not filled by said elastomeric joint sealant.
Claim 9
Dependent Claim
32 words
The fire resistive joint system of claim 6 wherein said mass of refractory fiber substantially fills that position of the joint not filled by said elastomeric joint sealant and said backing member.
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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) | 1980-11-21 | 1981-05-23 | 1981-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-21 | 1985-05-23 | 1985-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-21 | 1989-05-23 | 1989-11-22 | $7700.00 | Window Closed / Lapsed |