Patent US3151633A successfully refreshed from Google Patents.
US3151633A
Expired / Lapsed
US
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Shaped thermal insulation for pipe
Assignee: Owens Corning
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Filing: 1961-03-29
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Granted: 1964-10-06
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Expires: 1981-03-29
Abstract
No abstract record available.
Inventors
- 👤 Everett C Shuman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:05
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/02; F16L59/021; F16L59/024; F16L53/00; F16L53/30; F16L53/32; F16L53/35; F16L53/38; F16L59/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
INSULATION FOR ENCLOSING A TRACED PIPE ASSEMBLY INCLUDING A PRIMARY PIPE AND A SUBSTANTIALLY SMALLER TRACER PIPE COEXTENSIVE WITH SAID PRIMARY PIPE AND IN SURFACE ABUTMENT THEREWITH, COMPRISING A FIRST INSULATION SECTION CONTACTING THE PRIMARY PIPE, SAID FIRST SECTION HAVING SUBSTANTIALLY HORIZONTAL FREE EDGES, AND A SECOND INSULATION SECTION HAVING FREE EDGES CONTACTING THE CORRESPONDING EDGES OF THE FIRST SECTION AND HAVING SPACED INTERNAL ARCUATE SURFACES OF SEGMENTAL CYLINDRICAL CONTOUR TO EACH SIDE, RESPECTIVELY, OF A RECESS HAVING A DEPTH CORRESPONDING SUBSTANTIALLY TO THE EXTERNAL DIAMETER OF THE TRACER PIPE, EACH OF SAID SECTIONS HAVING A MINIMUM THICKNESS AT LEAST AS GREAT AS THE THICKNESS OF THE FIRST SECTION FREE EDGES.
Claim 2
Dependent Claim
111 words
INSULATION FOR ENCLOSING A TRACED PIPE ASSEMBLY INCLUDING A PRIMARY PIPE AND A SUBSTANTIALLY SMALLER TRACER PIPE COEXTENSIVE WITH SAID PRIMARY PIPE AND IN SURFACE ABUTMENT THEREWITH, COMPRISING A FIRST INSULATION SECTION CONTACTING THE PRIMARY PIPE, SAID FIRST SECTION HAVING SUBSTANTIALLY HORIZONTAL FREE EDGES, AND A SECOND INSULATION SECTION HAVING FREE EDGES CONTACTING THE CORRESPONDING EDGES OF THE FIRST SECTION AND HAVING SPACED INTERNAL ARCUATE SURFACES OF SEGMENTAL CYLINDRICAL CONTOUR TO EACH SIDE, RESPECTIVELY, OF A RECESS HAVING A DEPTH CORRESPONDING SUBSTANTIALLY TO THE EXTERNAL DIAMETER OF THE TRACER PIPE, EACH OF SAID SECTIONS HAVING A MINIMUM THICKNESS AT LEAST AS GREAT AS THE THICKNESS OF THE FIRST SECTION FREE EDGES.
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) | 1967-10-06 | 1968-04-06 | 1968-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-06 | 1972-04-06 | 1972-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-06 | 1976-04-06 | 1976-10-06 | $7700.00 | Window Closed / Lapsed |