US3252192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamp ring for pipe and the like
Assignee: Individual
•
Filing: 1964-04-01
•
Granted: 1966-05-24
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Expires: 1984-04-01
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:46
CPC Classifications
F; F16; F16L; F16L1/00; F16L1/024; F16L1/06; F16L1/10; F16L55/00; F16L55/16; Y; Y10; Y10S; Y10S285/00; Y10S285/915; Y10T; Y10T29/00; Y10T29/53; Y10T29/53983; Y10T29/53987
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
143 words
A CLAMP FOR GRIPPING A TUBULAR ARTICLE HAVING A CYLINDRICAL SURFACE COMPRISING A PLURALITY OF MEMBERS EACH FORMED WITH A GRIPPING SURFACE COOPERATING WITH A GRIPPNG SURFACE OF THE OTHER OF SAID MEMBERS TO DEFINE A CYLINDRICAL GRIPPING SURFACE, A PRESSURE FLOWABLE ADHESIVE COATING ON EACH GRIPPING SURFACE, A LAYER OF RELATIVELY CLOSELY PACKED LUMP-LIKE DUCTILE PARTICLES SECURED TO SAID MEMBERS BY SAID ADHESIVE, SAID PARTICLES HAVING A HARDNESS SUBSTANTIALLY GREATER THAN THE HARDNESS OF SAID CYLINDRICAL SURFACE AND SAID GRIPPING SURFACE, SAID LAYER OF PARTICLES HAVING A SUBSTANTIALLY UNIFORM THICKNESS OF LESS THAN ABOUT TWICE THE MAXIMUM DIMENSION OF SAID PARTICLES AND MORE THAN THE MAXIMUM DIMENSION OF ANY SINGLE PARTICLES, THE MAJORITY OF SAID PARTICLES BEING WITHIN A SIZE RANGE OF ABOUT TWENTYFIVE THOUSANDTHS TO ABOUT FIFTY THOUSANDTHS OF AN INCH, THE RADIUS OF CURVATURE OF SAID GRIPPING SURFACES BEING SUB-
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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) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |