US3190780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of applying protective wrappings to pipe
Assignee: Nee and Mcnulty Inc
•
Filing: 1961-05-19
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Granted: 1965-06-22
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Expires: 1981-05-19
Abstract
No abstract record available.
Inventors
- 👤 Frank E Mcnulty
- 👤 Robert M Nee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:54
CPC Classifications
F; F16; F16L; F16L58/00; F16L58/02; F16L58/16; B; B29; B29C; B29C63/00; B29C63/02; B29C63/04; B29C63/08; B29C63/10; B29C63/105
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A METHOD OF WRAPPING A PIPE COVERED WITH A HOT FLOWABLE COATING OF ENAMEL WHICH COMPRISES, AFFIXING THE FREE ENDS OF A PLURALITY OF LAYERS OF PROTECTIVE SHEET-LIKE MATERIAL TO THE ENAMELED SURFACE OF SAID PIPE, AT LEAST THE OUTER LAYER OF SAID MATERIAL BEING IMPERVIOUS TO SAID ENAMEL, MAINTAINING SUBSTANTIALLY NO TENSION ON THE INNER LAYER OF SAID MATERIAL NEXT TO SAID ENAMEL WHILE EXERTING SUBSTANTIALLY ALL THE TENSION REQUIRED TO EFFECT THE WRAPPING OPERATION ON THE OTHER OF SAID LAYERS, AND THEREAFTER SPIRALLY WRAPPING SAID PIPE WITH SAID MATERIAL WHILE SAID ENAMEL IS IN A HOT FLOWABLE CONDITIN, SAID LAYERS BEING SUPERPOSED ON ONE ANOTHER AND UNWOUND FROM THE SAME SOURCE ONTO SAID PIPE.
Claim 2
Independent Claim
116 words
A METHOD OF WRAPPING A PIPE COVERED WITH A HOT FLOWABLE COATING OF ENAMEL WHICH COMPRISES, AFFIXING THE FREE ENDS OF A PLURALITY OF LAYERS OF PROTECTIVE SHEET-LIKE MATERIAL TO THE ENAMELED SURFACE OF SAID PIPE, AT LEAST THE OUTER LAYER OF SAID MATERIAL BEING IMPERVIOUS TO SAID ENAMEL, MAINTAINING SUBSTANTIALLY NO TENSION ON THE INNER LAYER OF SAID MATERIAL NEXT TO SAID ENAMEL WHILE EXERTING SUBSTANTIALLY ALL THE TENSION REQUIRED TO EFFECT THE WRAPPING OPERATION ON THE OTHER OF SAID LAYERS, AND THEREAFTER SPIRALLY WRAPPING SAID PIPE WITH SAID MATERIAL WHILE SAID ENAMEL IS IN A HOT FLOWABLE CONDITIN, SAID LAYERS BEING SUPERPOSED ON ONE ANOTHER AND UNWOUND FROM THE SAME SOURCE ONTO SAID PIPE.
References Cited (Backward Citations)
US3033724A
Cited
US3024153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |