US3300853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction element
Assignee: Borg Warner Corp
•
Filing: 1963-10-28
•
Granted: 1967-01-31
•
Expires: 1983-10-28
Abstract
No abstract record available.
Inventors
- 👤 Myron D Gabbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:56
CPC Classifications
F; F16; F16D; F16D13/00; F16D13/58; F16D13/60; F16D13/64; B; B23; B23P; B23P15/00; B23P15/18; B23P19/00; B23P19/02; F16D13/644; F16D13/646; F16D1/00; F16D1/06; F16D1/064; F16D1/068; F16D2013/642; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49945
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
A PROCESS FOR FABRICATING A FRICTION-TYPE CLUTCH PLATE, COMPRISING: PROVIDING A BOTTOM DIE ASSEMBLY HAVING A CENTRAL CIRCULAR CYLINDRICAL PILOT MEMBER EXTENDING OUTWARDLY THEREFROM; PROVIDING AN UPPER DIE ASSEMBLY HAVING RELATIVELY MOVABLE PORTIONS AND HAVING A CENTRAL OPENING THERETHROUGH COAXIAL WITH SAID PILOT MEMBER OF SAID BOTTOM DIE ASSEMBLY, PROVIDING MEANS FOR MOVING SAID UPPER DIE ASSEMBLY RELATIVE TO SAID BOTTOM DIE ASSEMBLY SO THAT SAID PILOT MEMBER MAY EXTEND INTO SAID UPPER DIE ASSEMBLY OPENING; PLACING A FLAT CIRCULAR DISC OF METAL BETWEEN THE PORTIONS OF SAID UPPER DIE ASSEMBLY, SAID DISC HAVING A CENTRAL OPENING WITH MARGINS THEREOF EXTENDING INTO THE UPPER DIE ASSEMBLY OPENING AND BEING CONCENTRIC THEREWITH; PLACING A CIRCULAR CYLINDRICAL METAL SLEEVE ON SAID PILOT MEMBER FORCING SAID DIE ASSEMBLIES TOGETHER SO THAT SAID SLEEVE EXTRUDES THE MARGIN OF SAID DISC OPENING TO FORM AN ANNULAR NECK HAVING AN INTERFERENCE FIT ABOUT SAID SLEEVE; WITHDRAWING SAID DISC AND SLEEVE ASSEMBLY FROM SAID DIE AND WELDING THE TERMINAL END PORTION OF SAID EXTRUDED NECK TO SAID SLEEVE.
Claim 2
Dependent Claim
171 words
A PROCESS FOR FABRICATING A FRICTION-TYPE CLUTCH PLATE, COMPRISING: PROVIDING A BOTTOM DIE ASSEMBLY HAVING A CENTRAL CIRCULAR CYLINDRICAL PILOT MEMBER EXTENDING OUTWARDLY THEREFROM; PROVIDING AN UPPER DIE ASSEMBLY HAVING RELATIVELY MOVABLE PORTIONS AND HAVING A CENTRAL OPENING THERETHROUGH COAXIAL WITH SAID PILOT MEMBER OF SAID BOTTOM DIE ASSEMBLY, PROVIDING MEANS FOR MOVING SAID UPPER DIE ASSEMBLY RELATIVE TO SAID BOTTOM DIE ASSEMBLY SO THAT SAID PILOT MEMBER MAY EXTEND INTO SAID UPPER DIE ASSEMBLY OPENING; PLACING A FLAT CIRCULAR DISC OF METAL BETWEEN THE PORTIONS OF SAID UPPER DIE ASSEMBLY, SAID DISC HAVING A CENTRAL OPENING WITH MARGINS THEREOF EXTENDING INTO THE UPPER DIE ASSEMBLY OPENING AND BEING CONCENTRIC THEREWITH; PLACING A CIRCULAR CYLINDRICAL METAL SLEEVE ON SAID PILOT MEMBER FORCING SAID DIE ASSEMBLIES TOGETHER SO THAT SAID SLEEVE EXTRUDES THE MARGIN OF SAID DISC OPENING TO FORM AN ANNULAR NECK HAVING AN INTERFERENCE FIT ABOUT SAID SLEEVE; WITHDRAWING SAID DISC AND SLEEVE ASSEMBLY FROM SAID DIE AND WELDING THE TERMINAL END PORTION OF SAID EXTRUDED NECK TO SAID SLEEVE.
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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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |