US2833664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing putty
Assignee: Knapp Mills Inc
•
Filing: 1953-04-17
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Granted: 1958-05-06
•
Expires: 1973-04-17
Abstract
No abstract record available.
Inventors
- 👤 Alfred P Knapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:16
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
A PUTTY-LIKE SEALING COMPOSITION HAVING A PLIANCY ADAPTING IT TO BE PRESSURE SHAPED TO FILL CRACKS, CREVICES AND THE LIKE EMITTING INJURIOUS RADIATION, CONSISTING OF A MIXTURE OF A RELATIVELY LARGE PROPORTION OF FINE PROTECTIVE RAY-ABSORBING METAL POWDER PARTICLES INCLUDING SOFT METAL PARTICLES AND WITH A RELATIVELY SMALL PROPORTION OF A SOFT COATING AND BINDING MATERIAL SELECTED FROM THE GROUP CONSISTING OF OILS AND GREASES SUFFICIENT IN AMOUNT TO FILM THE POWDER PARTICLES, SAID METAL PARTICLES BEING COMPACTED AND AGGLOMERATED TOETHER AND COALESCED AND JOINED INTO AGGREGATES OF VARIOUS GROUPINGS WITH METAL-TOMETAL CONTACTS BETWEEN PORTIONS OF THE SURFACES OF THE SAID PARTICLES AND BY THIN INTERMEDIATE FILMS OF SAID SOFT MATERIAL SO THAT THE DENSITY OF THE COMPOSITION IS 70% TO 95% OF THE DENSITY OF THE METAL OF THE PARTICLES AND THERE IS A COALESCENCE OF THE SAID METAL-TO-METAL CONTACTED PARTICLES FORMING A PLIANT MASS ADAPTED TO BE PRESSURE SHAPED INTO CLOSE FITTING ENGAGEMENT WITH SAID CRACKS, CREVICES AND THE LIKE AND ADAPTED TO PROVIDE A CONTINUOUS BARRIER SEAL AGAINST RADIATION BLOCKED BY THE METAL OF SAID PARTICLES OF SAID COMPOSITION.
Claim 2
Dependent Claim
182 words
A PUTTY-LIKE SEALING COMPOSITION HAVING A PLIANCY ADAPTING IT TO BE PRESSURE SHAPED TO FILL CRACKS, CREVICES AND THE LIKE EMITTING INJURIOUS RADIATION, CONSISTING OF A MIXTURE OF A RELATIVELY LARGE PROPORTION OF FINE PROTECTIVE RAY-ABSORBING METAL POWDER PARTICLES INCLUDING SOFT METAL PARTICLES AND WITH A RELATIVELY SMALL PROPORTION OF A SOFT COATING AND BINDING MATERIAL SELECTED FROM THE GROUP CONSISTING OF OILS AND GREASES SUFFICIENT IN AMOUNT TO FILM THE POWDER PARTICLES, SAID METAL PARTICLES BEING COMPACTED AND AGGLOMERATED TOETHER AND COALESCED AND JOINED INTO AGGREGATES OF VARIOUS GROUPINGS WITH METAL-TOMETAL CONTACTS BETWEEN PORTIONS OF THE SURFACES OF THE SAID PARTICLES AND BY THIN INTERMEDIATE FILMS OF SAID SOFT MATERIAL SO THAT THE DENSITY OF THE COMPOSITION IS 70% TO 95% OF THE DENSITY OF THE METAL OF THE PARTICLES AND THERE IS A COALESCENCE OF THE SAID METAL-TO-METAL CONTACTED PARTICLES FORMING A PLIANT MASS ADAPTED TO BE PRESSURE SHAPED INTO CLOSE FITTING ENGAGEMENT WITH SAID CRACKS, CREVICES AND THE LIKE AND ADAPTED TO PROVIDE A CONTINUOUS BARRIER SEAL AGAINST RADIATION BLOCKED BY THE METAL OF SAID PARTICLES OF SAID COMPOSITION.
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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) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |