Patent US3601943A successfully refreshed from Google Patents.
US3601943A
Expired / Lapsed
US
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Expansion joint for sealing a gap between panels
Assignee: J DANOIS ET FILS ETS
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Filing: 1968-11-18
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Granted: 1971-08-31
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Expires: 1988-11-18
Abstract
Abstract A gap formed between two juxtaposed panels is sealed by an expansion joint in the form of a sheet-metal strip with a central portion spanning the gap and two edge portions bent back onto the central portion to form a tubular bight along each major edge of the strip, this bight being received with clearance in an occluded longitudinal recess of the corresponding panel. The connecting central portion traverses a narrow passage giving access to the recess, this passage also receiving the free edge portion of the strip which is resiliently biased away from the central portion whereby the two portions are maintained in sealing engagement with opposite walls of the passage.
Inventors
- 👤 Andre Danois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:30
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/66; E04B1/68; E04B1/681
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
134 words
An expansion-joint assembly comprising a pair of juxtaposed panel members having confronting edge faces separated by a gap, each of said members being provided with an occluded recess parallel to its edge face and with a restricted longitudinal passage giving access to said recess from said edge face, and a resilient strip bridging said gap, said strip having a central portion projecting into the recesses of both members through their respective access passages and a pair of edge portions bent back upon said central portion with formations of a generally tubular bight portion wider than said access passages in each recess, said recess surrounding said bight portion with peripheral clearance, said central portion and each edge portion bearing upon opposite walls of a respective access passage under resilient stress from the associated bight portion.
Claim 2
Dependent Claim
134 words
An expansion-joint assembly comprising a pair of juxtaposed panel members having confronting edge faces separated by a gap, each of said members being provided with an occluded recess parallel to its edge face and with a restricted longitudinal passage giving access to said recess from said edge face, and a resilient strip bridging said gap, said strip having a central portion projecting into the recesses of both members through their respective access passages and a pair of edge portions bent back upon said central portion with formations of a generally tubular bight portion wider than said access passages in each recess, said recess surrounding said bight portion with peripheral clearance, said central portion and each edge portion bearing upon opposite walls of a respective access passage under resilient stress from the associated bight portion.
Claim 3
Dependent Claim
24 words
An assembly as defined in claim 1 wherein each of said recesses has a generally pear-shaped cross section converging toward the corresponding access passage.
Claim 4
Dependent Claim
43 words
An assembly as defined in claim 1 wherein each of said recesses is provided with a metallic liner extending outwardly along said opposite walls and terminating in a pair of lips overlying the corresponding edge face on opposite sides of the access passage.
Claim 5
Dependent Claim
36 words
An assembly as defined in claim 1 wherein each of said edge portions is curved away from said central portion within its access passage and bears with a convex side upon a wall of said passage.
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) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |