US4063755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compensators or expansion joints
Assignee: Individual
•
Filing: 1975-09-02
•
Granted: 1977-12-20
•
Expires: 1995-09-02
Abstract
Abstract A compensator of pliable material for establishing a flexible joint in a pipe, comprising at least one flexible layer of fabric material cooperating with a sealing element of limited thermal stability. A layer of flexible steel foil is disposed between the sealing element and at least one thermally and/or chemically stressed side of the compensator.
Inventors
- 👤 Gunther Merz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:05
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/02; F16L59/029; F16L27/00; F16L27/10; F16L27/107; F16L59/14; F16L59/16; F16L59/21
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
96 words
A compensator of pliable materials arranged in a laminar fashion for establishing a flexible joint between sections ofa pipe, comprising: a sealing layer of a fluid-impervious material having a limited thermal stability; a flexible layer of fabric material positioned adjacent to and on each side of said sealing layer; and a non-load-bearing layer of flexible, metallic foil positioned adjacent to said sealing and said flexible layers, said layer of flexible, metallic foil being disposed relative to said sealng and said flexible layers so as to protect said layers against a source of thermal and/or chemical stress.
Claim 2
Dependent Claim
96 words
A compensator of pliable materials arranged in a laminar fashion for establishing a flexible joint between sections ofa pipe, comprising: a sealing layer of a fluid-impervious material having a limited thermal stability; a flexible layer of fabric material positioned adjacent to and on each side of said sealing layer; and a non-load-bearing layer of flexible, metallic foil positioned adjacent to said sealing and said flexible layers, said layer of flexible, metallic foil being disposed relative to said sealng and said flexible layers so as to protect said layers against a source of thermal and/or chemical stress.
Claim 3
Dependent Claim
27 words
A compensator of pliable materials according to claim 1, wherein said layer of flexible, metallic foil is steel and has a thickness no greater than 0.05 mm.
Claim 4
Dependent Claim
38 words
A compensator of pliable materials according to claim 1, further including a second, non-load-bearing layer of flexible, metallic foil positioned adjacent to and on the side of said sealing layer opposite from said layer of flexible, metallic foil.
Claim 5
Dependent Claim
35 words
A compensator of pliable materials according to claim 1, in which said layer of metallic foil is provided with folded end flaps which engage each other when the compensator is attached to the pipe sections.
Claim 6
Dependent Claim
50 words
A compensator of pliable materials according to claim 1, further comprising: at least one, intermediate layer of heat-resistant, insulating material positioned adjacent to said layer of flexible metallic foil; and a looped-wire fabric juxtaposed to said heat-resistant, insulating material at the side of said compensator exposed to high thermal stresses.
Claim 7
Dependent Claim
16 words
A compensator of pliable materials according to claim 5 wherein said heat-resistant material is mineral wool.
Claim 8
Dependent Claim
15 words
A compensator of pliable materials according to claim 5 wherein said heat-resistant material is felt.
References Cited (Backward Citations)
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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) | 1980-12-19 | 1981-06-20 | 1981-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-19 | 1985-06-20 | 1985-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-19 | 1989-06-20 | 1989-12-20 | $7700.00 | Window Closed / Lapsed |