Patent US3103852A successfully refreshed from Google Patents.
US3103852A
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Broaching apparatus
Assignee: LaPointe Hudson Broach
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Filing: 1961-03-16
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Granted: 1963-09-17
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Expires: 1981-03-16
Abstract
No abstract record available.
Inventors
- 👤 Oliver W Bonnafe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:57
CPC Classifications
B; B23; B23D; B23D39/00; Y; Y10; Y10T; Y10T409/00; Y10T409/40; Y10T409/406475; Y10T409/40665; Y10T409/40735
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
IN A BROACHING MACHINE HAVING A SUPPORT INCLUDING A WORK HOLDER, A CARRIAGE, MEANS ON THE SUPPORT SUPPORTING THE CARRIAGE AT ONE SIDE OF THE WORK HOLDER FOR SLIDING MOVEMENT RELATIVE THERETO ALONG A PATH PERPENDICULAR TO THE WORK HOLDER, AN ARM ON THE CARRIAGE EXTENDING THEREFROM CROSSWISE OF THE WORK HOLDER, A BROACH HOLDER ON THE ARM SPACED FROM THE CARRIAGE TO WHICH AN END OF A BROACH MAY BE CONNECTED FOR EFFECTING LENGTHWISE MOVEMENT OF THE BROACH TOWARD AND AWAY FROM THE WORK HOLDER FOR OPERATING ON A WORK PIECE FIXED TO THE WORK HOLDER, AND MEANS FOR EFFECTING MOVEMENT OF THE CARRIAGE, CHARACTERIZED IN THAT IT COMPRISES A PAIR OF SPACED PARALLEL BALL-LEAD SCREWS ROTATABLY MOUNTED ON THE SUPPORT AT OPPOSITE SIDES OF THE BROACH HOLDER IN A PLANE CONTAINING THE AXIS OF THE BROACH HOLDER AND PARALLEL TO THE CARRIAGE SUPPORT, BALL NUTS ON THE ARM AT OPPOSITE SIDES OF THE BROACH HOLDER THROUGH WHICH THE BALL-LEAD SCREWS PASS, AND MEANS FOR EFFECTING ROTATION OF THE BALLLEAD SCREWS IN THE SAME DIRECTION.
Claim 2
Dependent Claim
176 words
IN A BROACHING MACHINE HAVING A SUPPORT INCLUDING A WORK HOLDER, A CARRIAGE, MEANS ON THE SUPPORT SUPPORTING THE CARRIAGE AT ONE SIDE OF THE WORK HOLDER FOR SLIDING MOVEMENT RELATIVE THERETO ALONG A PATH PERPENDICULAR TO THE WORK HOLDER, AN ARM ON THE CARRIAGE EXTENDING THEREFROM CROSSWISE OF THE WORK HOLDER, A BROACH HOLDER ON THE ARM SPACED FROM THE CARRIAGE TO WHICH AN END OF A BROACH MAY BE CONNECTED FOR EFFECTING LENGTHWISE MOVEMENT OF THE BROACH TOWARD AND AWAY FROM THE WORK HOLDER FOR OPERATING ON A WORK PIECE FIXED TO THE WORK HOLDER, AND MEANS FOR EFFECTING MOVEMENT OF THE CARRIAGE, CHARACTERIZED IN THAT IT COMPRISES A PAIR OF SPACED PARALLEL BALL-LEAD SCREWS ROTATABLY MOUNTED ON THE SUPPORT AT OPPOSITE SIDES OF THE BROACH HOLDER IN A PLANE CONTAINING THE AXIS OF THE BROACH HOLDER AND PARALLEL TO THE CARRIAGE SUPPORT, BALL NUTS ON THE ARM AT OPPOSITE SIDES OF THE BROACH HOLDER THROUGH WHICH THE BALL-LEAD SCREWS PASS, AND MEANS FOR EFFECTING ROTATION OF THE BALLLEAD SCREWS IN THE SAME DIRECTION.
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) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |