US3717934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sizing device for measuring the diameter of a workpiece of non-circular cross-section
Assignee: Toyoda Koki KK
•
Filing: 1971-02-26
•
Granted: 1973-02-27
•
Expires: 1991-02-26
Abstract
Abstract A SIZING DEVICE HAS A PAIR OF MEASURING FEELERS URGED INTO ENGAGEMENT WITH A ROTATING WORKPIECE OF NON-CIRCULAR CROSS-SECTION. THE FEELERS ARE OPERATED BY A CAM ALTERNATELY TO ENGAGE WITH AND DISENGAGE FROM THE WORKPIECE FOR MEASURING A PARTICULAR SINGLE DIAMETER OF THE WORKPIECE. THE CAM IS ROTATED IN COORDINATION WITH THE ROTATION OF THE WORKPIECE BY A SYNCHRONOUS RECEIVER THROUGH THE SYNCHRONOUS SIGNAL GENERATED BY A SYNCHRONOUS TRANSMITTER IN RESPONSE TO THE ROTATION OF THE WORKPIECE.
Inventors
- 👤 M Ishikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:44
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-27 | 1976-08-28 | 1977-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-27 | 1980-08-28 | 1981-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-27 | 1984-08-28 | 1985-02-27 | $7700.00 | Window Closed / Lapsed |