US3144783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tapping attachment
Assignee: Individual
•
Filing: 1963-01-18
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Granted: 1964-08-18
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Expires: 1983-01-18
Abstract
No abstract record available.
Inventors
- 👤 Herman R Dubendorfer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:36
CPC Classifications
B; B23; B23G; B23G1/00; B23G1/44; B23G1/46; B23G1/465; F; F16; F16D; F16D7/00; F16D7/04; F16D7/06; F16D7/08; Y; Y10; Y10T; Y10T408/00; Y10T408/65; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19484; Y10T74/19605
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
A POWER TRANSMISSION ATTACHMENT COMPRISING A ROTATABLE INPUT SHAFT HAVING AN END PORTION EXPANDED INTO AN INVERTED CUP POSSESSING A BOTTOM CONTAINING APERTURES AND A SIDE WALL HAVING EXTERNAL THREADS, A ROTATABLE OUTPUT SHAFT, A BASE FOR ROTATABLY SUPPORTING SAID OUTPUT SHAFT, A DISK WITHIN SAID CUP ADJACENT THE BOTTOM THEREOF HAVING A PLURALITY OF CAVITIES IN ITS SURFACE ADJACENT THE BOTTOM OF SAID CUP, MEANS FOR COUPLING SAID OUTPUT SHAFT FOR COMMON ROTARY MOVEMENT TO SAID DISK, COUPLING MEMBERS OF A SIZE TO FIT INTO SAID CAVITIES LOCATED IN THE APERTURES IN THE BOTTOM OF SAID CUP, A CAP ARRANGED CONCENTRICALLY AROUND SAID INPUT SHAFT AND HAVING A SIDE WALL CONTAINING INTERNAL THREADS IN ENGAGEMENT WITH SAID EXTERNAL THREADS IN THE SIDE WALL OF SAID INVERTED CUP FOR ADJUSTMENT OF THE POSITION OF SAID CAP RELATIVE TO SAID CUP, AND AN EXPANSION SPRING ARRANGED COAXIALLY AROUND SAID INPUT SHAFT IN THE SPACE BETWEEN SAID CAP AND SAID CUP TO URGE SAID COUPLING MEMBERS YIELDABLY INTO ENGAGEMENT WITH THE CAVITIES IN SAID DISK.
Claim 2
Dependent Claim
173 words
A POWER TRANSMISSION ATTACHMENT COMPRISING A ROTATABLE INPUT SHAFT HAVING AN END PORTION EXPANDED INTO AN INVERTED CUP POSSESSING A BOTTOM CONTAINING APERTURES AND A SIDE WALL HAVING EXTERNAL THREADS, A ROTATABLE OUTPUT SHAFT, A BASE FOR ROTATABLY SUPPORTING SAID OUTPUT SHAFT, A DISK WITHIN SAID CUP ADJACENT THE BOTTOM THEREOF HAVING A PLURALITY OF CAVITIES IN ITS SURFACE ADJACENT THE BOTTOM OF SAID CUP, MEANS FOR COUPLING SAID OUTPUT SHAFT FOR COMMON ROTARY MOVEMENT TO SAID DISK, COUPLING MEMBERS OF A SIZE TO FIT INTO SAID CAVITIES LOCATED IN THE APERTURES IN THE BOTTOM OF SAID CUP, A CAP ARRANGED CONCENTRICALLY AROUND SAID INPUT SHAFT AND HAVING A SIDE WALL CONTAINING INTERNAL THREADS IN ENGAGEMENT WITH SAID EXTERNAL THREADS IN THE SIDE WALL OF SAID INVERTED CUP FOR ADJUSTMENT OF THE POSITION OF SAID CAP RELATIVE TO SAID CUP, AND AN EXPANSION SPRING ARRANGED COAXIALLY AROUND SAID INPUT SHAFT IN THE SPACE BETWEEN SAID CAP AND SAID CUP TO URGE SAID COUPLING MEMBERS YIELDABLY INTO ENGAGEMENT WITH THE CAVITIES IN SAID DISK.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |