US2742384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal insulating expansion joint for pipes
Assignee: Johns Manville Corp
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Filing: 1952-09-11
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Granted: 1956-04-17
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Expires: 1972-09-11
Abstract
No abstract record available.
Inventors
- 👤 Miles W Burleson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:41
CPC Classifications
F; F16; F16L; F16L21/00; F16L21/002; F16L21/005; F16L59/00; F16L59/08; F16L59/14; F16L59/16; F16L59/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A THERMAL INSULATING PIPE COVERING COMPRISING SEPARATE COMPLETE COVERING SECTIONS OF THERMAL INSULATING MATERIAL HAVING A COEFFICIENT OF THERMAL EXPANSION DIFFERING APPRECIABLY FROM THAT OF THE PIPE TO BE INSULATED, AND EACH COMPLETELY ENCOMPASSING THE PIPE, SAID COMPLETE COVERING SECTIONS HAVING ADJACENT ENDS WHICH FACE LONGITUDINALLY OF THE PIPE AND TOWARD EACH OTHER IN OPPOSED BUTT JOINT RELATIONSHIP, SAID ENDS HAVING A JOINT SPACE THEREBETWEEN WHICH OPENS AND CLOSES AS THE PIPE AND SAID SECTIONS EXPAND LONGITUDINALLY IN DIFFERENT AMOUNTS IN RESPONSE TO THERMAL VARIATIONS, MEANS CLOSING SAID JOINT SPACE AGAINST HEAT TRANSFER THERETHROUGH, SAID MEANS COMPRISING, A HEAT REFLECTIVE BAND OVERLYING AND COMPLETELY
Claim 2
Dependent Claim
104 words
A THERMAL INSULATING PIPE COVERING COMPRISING SEPARATE COMPLETE COVERING SECTIONS OF THERMAL INSULATING MATERIAL HAVING A COEFFICIENT OF THERMAL EXPANSION DIFFERING APPRECIABLY FROM THAT OF THE PIPE TO BE INSULATED, AND EACH COMPLETELY ENCOMPASSING THE PIPE, SAID COMPLETE COVERING SECTIONS HAVING ADJACENT ENDS WHICH FACE LONGITUDINALLY OF THE PIPE AND TOWARD EACH OTHER IN OPPOSED BUTT JOINT RELATIONSHIP, SAID ENDS HAVING A JOINT SPACE THEREBETWEEN WHICH OPENS AND CLOSES AS THE PIPE AND SAID SECTIONS EXPAND LONGITUDINALLY IN DIFFERENT AMOUNTS IN RESPONSE TO THERMAL VARIATIONS, MEANS CLOSING SAID JOINT SPACE AGAINST HEAT TRANSFER THERETHROUGH, SAID MEANS COMPRISING, A HEAT REFLECTIVE BAND OVERLYING AND COMPLETELY
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) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |