US3270423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Positioning device
Assignee: Sheffield Corp
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Filing: 1963-09-30
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Granted: 1966-09-06
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Expires: 1983-09-30
Abstract
No abstract record available.
Inventors
- 👤 Kirk E Birrell
- 👤 Robert E Esch
- 👤 James M Stemple
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:13
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/0405; B; B23; B23Q; B23Q16/00; B23Q2716/00; B23Q2716/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
294 words
A DEVICE FOR SUPPORTING A WORKPIECE FOR ROTATION ABOUT AN AXIS OF ROTATION AND FOR POSITIONING SAID WORKPIECE TO POSITION A CENTRAL AXIS OF THE WORKPIECE TO COINCIDE WITH SAID AXIS OF ROTATION COMPRISING, A BASE, A SUPPORT, BEARING MEANS COOPERATING BETWEEN SAID SUPOPORT AND SAID BASE MOUNTING SAID SUPPORT ON SAID BASE FOR ROTATION ABOUT SAID AXIS OF ROTATION, DRIVE MEANS OPERATIVELY CONNECTED TO SAID SUPPORT FOR ROTATION THEROF ON SAID BASE AND ABOUT SAID AXIS OF ROTATION, A WORKTABLE CARRIED BY SAID SUPPORT, SUPPORTING MEANS COOPERATING BETWEEN SAID SUPPORT AND SAID WORKTABLE CARRYING SAID WORKTABLE ON SAID SUPPORT FOR ADJUSTMENT OF SAID WORKTABLE AND A WORKPIECE MOUNTED THEREON TRANSVERSE SAID AXIS OF ROTATION AND FOR PIVOTING MOVEMENT RELATIVE THERETO, COUPLING MEANS INTERCONNECTING SAID SUPPORT AND SAID WORKTABLE FOR SIMULTANEOUS ROTATION THEREOF, GAGING MEANS PROVIDING A GAGING SIGNAL RESPONSIVE TO THE POSITION OF THE WORKPIECE WITH RESPECT TO SAID AXIS OF ROTATION, FIRST ACTUATING MEANS CARRIED BY SAID SUPPORT OPERATIVELY CONNECTED TO SAID WORKTABLE AND CONTROLLED BY SAID GAGING SIGNAL FOR ADJUSTING THE WORKTABLE AND A WORKPIECE CARRIED THEREBY IN A PLURALITY OF ANGULARLY RELATED DIRECTIONS TRANSVERSE TO SAID AXIS OF ROTATION, SECOND ACTUATING MEANS CARRIED BY SAID SUPPORT OPERATIVELY CONNECTED TO SAID WORKTABLE AND CONTROLLED BY SAID GAGING SIGNAL FOR INCLINING THE WORKTABLE AND A WORKPIECE CARRIED THEREBY RELATIVE TO SAID SUPPORT AND SAID AXIS OF ROTATION, EACH OF SAID ACTUATING MEANS INCLUDING A PAIR OF DRIVE MOTORS RELATIVELY SPACED AT NINETY DEGREES ABOUT SAID AXIS OF ROTATION AND LYING IN A COMMON PLANE PERPENDICULAR THERETO, AND FORCE TRANSMITTING MEANS COOPERATING BETWEEN EACH RESPECTIVE MOTOR AND SAID WORKTABLE FOR APPLYING POSITIONING FORCES TO SAID WORKTABLE SUBSTANTIALLY RADIALLY TO SAID AXIS OF ROTATION WHILE ALLOWING RELATIVE MOVEMENT TRANSVERSE THE DIRECTION OF FORCE APPLICATION.
Claim 2
Independent Claim
294 words
A DEVICE FOR SUPPORTING A WORKPIECE FOR ROTATION ABOUT AN AXIS OF ROTATION AND FOR POSITIONING SAID WORKPIECE TO POSITION A CENTRAL AXIS OF THE WORKPIECE TO COINCIDE WITH SAID AXIS OF ROTATION COMPRISING, A BASE, A SUPPORT, BEARING MEANS COOPERATING BETWEEN SAID SUPOPORT AND SAID BASE MOUNTING SAID SUPPORT ON SAID BASE FOR ROTATION ABOUT SAID AXIS OF ROTATION, DRIVE MEANS OPERATIVELY CONNECTED TO SAID SUPPORT FOR ROTATION THEROF ON SAID BASE AND ABOUT SAID AXIS OF ROTATION, A WORKTABLE CARRIED BY SAID SUPPORT, SUPPORTING MEANS COOPERATING BETWEEN SAID SUPPORT AND SAID WORKTABLE CARRYING SAID WORKTABLE ON SAID SUPPORT FOR ADJUSTMENT OF SAID WORKTABLE AND A WORKPIECE MOUNTED THEREON TRANSVERSE SAID AXIS OF ROTATION AND FOR PIVOTING MOVEMENT RELATIVE THERETO, COUPLING MEANS INTERCONNECTING SAID SUPPORT AND SAID WORKTABLE FOR SIMULTANEOUS ROTATION THEREOF, GAGING MEANS PROVIDING A GAGING SIGNAL RESPONSIVE TO THE POSITION OF THE WORKPIECE WITH RESPECT TO SAID AXIS OF ROTATION, FIRST ACTUATING MEANS CARRIED BY SAID SUPPORT OPERATIVELY CONNECTED TO SAID WORKTABLE AND CONTROLLED BY SAID GAGING SIGNAL FOR ADJUSTING THE WORKTABLE AND A WORKPIECE CARRIED THEREBY IN A PLURALITY OF ANGULARLY RELATED DIRECTIONS TRANSVERSE TO SAID AXIS OF ROTATION, SECOND ACTUATING MEANS CARRIED BY SAID SUPPORT OPERATIVELY CONNECTED TO SAID WORKTABLE AND CONTROLLED BY SAID GAGING SIGNAL FOR INCLINING THE WORKTABLE AND A WORKPIECE CARRIED THEREBY RELATIVE TO SAID SUPPORT AND SAID AXIS OF ROTATION, EACH OF SAID ACTUATING MEANS INCLUDING A PAIR OF DRIVE MOTORS RELATIVELY SPACED AT NINETY DEGREES ABOUT SAID AXIS OF ROTATION AND LYING IN A COMMON PLANE PERPENDICULAR THERETO, AND FORCE TRANSMITTING MEANS COOPERATING BETWEEN EACH RESPECTIVE MOTOR AND SAID WORKTABLE FOR APPLYING POSITIONING FORCES TO SAID WORKTABLE SUBSTANTIALLY RADIALLY TO SAID AXIS OF ROTATION WHILE ALLOWING RELATIVE MOVEMENT TRANSVERSE THE DIRECTION OF FORCE APPLICATION.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |