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US3157983A
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US
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Method for the manufacture of stuffing box packings
Assignee: Individual
•
Filing: 1958-08-18
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Granted: 1964-11-24
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Expires: 1978-08-18
Abstract
No abstract record available.
Inventors
- 👤 Radke Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:33
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/18; F16J15/20; F16J15/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN A PROCESS FOR PRODUCING STUFFING BOX PACKINGS MADE UP OF ORIENTED FIBERS FORMED INTO YARNS AND SOLIDS HAVING LUBRICATING PROPERTIES ON SAID FIBERS, THE STEPS WHICH COMPRISE PREPARING A MIXTURE INCLUDING STAPLE FIBERS AND LUBRICATING SOLIDS IN SMALL FLAKE FROM, THE VOLUME OF THE SOLIDS BEING AT LEAST 30% OF THE FIBERS AND SOLIDS COMBINED, FORMING A PAPER-LIKE FOIL OF THE MIXTURE AND DRYING THE FOIL, DEVILING THE FOIL TO FORM INDIVIDUAL FIBERS, SUBSEQUENTLY CARDING THE FIBERS TO FORM A SILVER, INTERTWINING THE SILVER INTO A YARN AND FORMING THE PACKING FROM SAID YARN IN SUITABLE MANNER, WHEREBY EVERY INDIVIDUAL FIBER IS SUBSTNATIALLY COMPLETELY ENVELOPED BY THE SOLIDS.
Claim 2
Dependent Claim
109 words
IN A PROCESS FOR PRODUCING STUFFING BOX PACKINGS MADE UP OF ORIENTED FIBERS FORMED INTO YARNS AND SOLIDS HAVING LUBRICATING PROPERTIES ON SAID FIBERS, THE STEPS WHICH COMPRISE PREPARING A MIXTURE INCLUDING STAPLE FIBERS AND LUBRICATING SOLIDS IN SMALL FLAKE FROM, THE VOLUME OF THE SOLIDS BEING AT LEAST 30% OF THE FIBERS AND SOLIDS COMBINED, FORMING A PAPER-LIKE FOIL OF THE MIXTURE AND DRYING THE FOIL, DEVILING THE FOIL TO FORM INDIVIDUAL FIBERS, SUBSEQUENTLY CARDING THE FIBERS TO FORM A SILVER, INTERTWINING THE SILVER INTO A YARN AND FORMING THE PACKING FROM SAID YARN IN SUITABLE MANNER, WHEREBY EVERY INDIVIDUAL FIBER IS SUBSTNATIALLY COMPLETELY ENVELOPED BY THE SOLIDS.
References Cited (Backward Citations)
US267537A
Cited
US1608165A
Cited
US862899A
Cited
US926996A
Cited
US951827A
Cited
US1256881A
Cited
US2210004A
Cited
US1982381A
Cited
US2099242A
Cited
US2134324A
Cited
US2301998A
Cited
US2404952A
Cited
US2667684A
Cited
US2743511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |