US4054985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the application of a protection cover around heat or cool insulated tube bends
Assignee: ISOLERINGS ISENTA AB
•
Filing: 1976-06-03
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Granted: 1977-10-25
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Expires: 1996-06-03
Abstract
Abstract A protective cover for an insulated pipe bend. A corrugated band-form material is spirally wound into a tube and the adjoining tube edges are secured, such as by lapping, to form a non-slipping joint. The corrugated tube thus provided can be readily shaped to conform to an existing tube bend. The corrugated tube is cut lengthwise into two or more parts which are then placed over the insulated pipe bend. The cut edges are re-joined to form the protective cover.
Inventors
- 👤 Sven Goran Aleniusson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:18
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/14; F16L59/16; F16L59/22; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49428; Y10T29/49446; Y10T29/49789; Y10T29/49796
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
128 words
A method of applying a protective covering around insulated pipe bends comprising the steps of: providing a protective tube made from a spirally wound, band-form material, each turn of the spirally wound, band-form material being secured to an adjacent turn by a self-binding lap and being corrugated by at least one corrugation wave running in the longitudinal direction of the band-form material forming said turn; cutting said protective tube along its length to form at least two parts; shaping said protective tube to conform to the shape of an insulated pipe bend; positioning said two parts of said protective tube around said insulated tube bend with the cut edges thereof in adjacency; and joining together said cut edges to form a protective covering around said insulated pipe bend.
Claim 2
Independent Claim
128 words
A method of applying a protective covering around insulated pipe bends comprising the steps of: providing a protective tube made from a spirally wound, band-form material, each turn of the spirally wound, band-form material being secured to an adjacent turn by a self-binding lap and being corrugated by at least one corrugation wave running in the longitudinal direction of the band-form material forming said turn; cutting said protective tube along its length to form at least two parts; shaping said protective tube to conform to the shape of an insulated pipe bend; positioning said two parts of said protective tube around said insulated tube bend with the cut edges thereof in adjacency; and joining together said cut edges to form a protective covering around said insulated pipe bend.
Claim 3
Dependent Claim
30 words
A method according to claim 1 wherein said band form material is corrugated by from 5 to 10 corrugation waves running in the longitudinal direction of said band form material.
Claim 4
Dependent Claim
20 words
A method according to claim 2 wherein the height of said corrugation waves exceeds the separation between adjacent corrugation waves.
Claim 5
Dependent Claim
37 words
A method according to claim 1 wherein said protective tube is cut in a plane corresponding to a diametrical plane for the tube bend and having the center of curvature of the tube band as its center.
Claim 6
Dependent Claim
24 words
A method according to claim 1 wherein said cut edges of said protective tube are joined by a strip member running along said edges.
Claim 7
Dependent Claim
25 words
A method according to claim 5 wherein said strip member is T-shaped in section with the leg of the T positioned between adjacent cut edges.
Claim 8
Dependent Claim
28 words
A method according to claim 5 wherein said strip member is secured to said edges by fastening means extending through said strip member and through said protective tube.
Claim 9
Dependent Claim
33 words
A method according to claim 5 wherein said strip member is H-shaped in section and wherein the adjacent cut edges are positioned, respectively, in the cavities formed between the legs of said H.
Claim 10
Dependent Claim
24 words
A method according to claim 8 further comprising spring means for securing a cut edge of said protective tubing within each of said cavities.
Claim 11
Dependent Claim
25 words
A method according to claim 1 wherein said band form material is selected from the group consisting of aluminum, aluminum alloys, sheet steel, and plastic.
Claim 12
Dependent Claim
21 words
A method according to claim 10 wherein said band form material comprises a shapable plastic without observable elasticity or shape memory.
Claim 13
Dependent Claim
15 words
A method according to claim 1 wherein the protective tube is cut prior to shaping.
Claim 14
Dependent Claim
15 words
A method according to claim 1 wherein the protective tube is cut subsequent to shaping.
References Cited (Backward Citations)
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Cited
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Cited
US1049543A
Cited
US2923650A
Cited
US3153546A
Cited
US3559694A
Cited
US3620258A
Cited
US3732894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-24 | 1981-04-25 | 1981-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-24 | 1985-04-25 | 1985-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-24 | 1989-04-25 | 1989-10-25 | $7700.00 | Window Closed / Lapsed |