Patent US3281995A successfully refreshed from Google Patents.
US3281995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine tool
Assignee: Farrel Corp
•
Filing: 1963-12-20
•
Granted: 1966-11-01
•
Expires: 1983-12-20
Abstract
No abstract record available.
Inventors
- 👤 Alfred T Parrella
- 👤 Gene R Gagliardi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:59
CPC Classifications
B; B24; B24B; B24B49/00; B24B5/00; B24B5/02; B24B5/04; Y; Y10; Y10T; Y10T82/00; Y10T82/27
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
98 words
IN A ROLL GRINDER OF THE TYPE WHEREIN A MILL ROLL IS SUPPORTED ON JOURNAL ENDS THEREOF ON JOURNAL SUPPORTS AND ARRANGED TO BE AXIALLY ALIGNED WITH A REFERENCE AXIS, THE IMPROVEMENT COMPRISING; MEANS FOR DETECTING THE CENTER OF EACH JOURNAL AT ITS JOURNAL SUPPORT, SUPPORT MEANS INCLUDING GUIDE MEANS, SAID DETECTING MEANS BEING MOVABLE ON SAID GUIDE MEANS IN A DIRECTION SUBSTANTIALLY PERPENDICULAR TO THE AXIS OF A MILL ROLL SUPPORTED ON THE GRINDER, AND MEANS RESPONSIVE TO MOVEMENT OF EACH OF SAID DETECTING MEANS FOR INDICATING THE DISTANCE OF THE DETECTED CENTERS FROM A REFERENCE AXIS.
References Cited (Backward Citations)
US1808392A
Cited
GB476363A
Cited
US2312161A
Cited
US2544156A
Cited
US2864211A
Cited
US3056243A
Cited
US3070925A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |