Patent US3250042A successfully refreshed from Google Patents.
US3250042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for lapping and grinding balls
Assignee: Sebastian Messerschmidt Spezialmaschinenfabrik Firma
•
Filing: 1964-05-22
•
Granted: 1966-05-10
•
Expires: 1984-05-22
Abstract
No abstract record available.
Inventors
- 👤 Messerschmidt Sebastian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:40
CPC Classifications
B; B24; B24B; B24B11/00; B24B11/02; B24B11/04; B24B11/06; B24B41/00; B24B41/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
DEVICE FOR LAPPING AND GRINDING BALLS, COMPRISING AN ANNULAR MAGAZINE ROTATING IN A SUBSTANTIALLY HORIZONTAL PLANE, TWO SUPERPOSED LAPPING WHEELS ARRANGED WITHIN SAID ANNULAR MAGAZINE, A CONTINUOUS STREAM TO BALLS BEING CONTINUOUSLY FED FROM THE MAGAZINE THROUGH A BALL INLET LEADING BETWEEN THE TWO LAPPING WHEELS, A FEELER ARM ARRANGED IN THE REGION OF THE BALL INLET AND IN CONTACT WITH THE LAYER OF BALLS IN THE MAGAZINE, AND SWITCHING ELEMENTS FOR SIGNALLING, REGULATING AND OTHER SIMILAR PURPOSES CONNECTED WITH SAID FEELER ARM AND ACTUATED THEREBY ACCORDING TO ITS POSITION.
Claim 2
Dependent Claim
90 words
DEVICE FOR LAPPING AND GRINDING BALLS, COMPRISING AN ANNULAR MAGAZINE ROTATING IN A SUBSTANTIALLY HORIZONTAL PLANE, TWO SUPERPOSED LAPPING WHEELS ARRANGED WITHIN SAID ANNULAR MAGAZINE, A CONTINUOUS STREAM TO BALLS BEING CONTINUOUSLY FED FROM THE MAGAZINE THROUGH A BALL INLET LEADING BETWEEN THE TWO LAPPING WHEELS, A FEELER ARM ARRANGED IN THE REGION OF THE BALL INLET AND IN CONTACT WITH THE LAYER OF BALLS IN THE MAGAZINE, AND SWITCHING ELEMENTS FOR SIGNALLING, REGULATING AND OTHER SIMILAR PURPOSES CONNECTED WITH SAID FEELER ARM AND ACTUATED THEREBY ACCORDING TO ITS POSITION.
References Cited (Backward Citations)
US2964886A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |