US3157983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the manufacture of stuffing box packings
Assignee: Individual
•
Filing: 1958-08-18
•
Granted: 1964-11-24
•
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 19:16
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.
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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) | 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 |