Patent US3081817A successfully refreshed from Google Patents.
US3081817A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for slitting tire treads
Assignee: Individual
•
Filing: 1960-01-11
•
Granted: 1963-03-19
•
Expires: 1980-01-11
Abstract
No abstract record available.
Inventors
- 👤 George T Hemmeter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:27
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/52; B29D30/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A DEVICE FOR TREATING TIRES COMPRISING A FRAME, A FIRST DRUM, MEANS FOR SUPPORTING SAID FIRST DRUM ON SAID FRAME FOR ROTATION ABOUT A FIRST AXIS, MEANS ON SAID FIRST DRUM FOR SUBSTANTIALLY NON-SLIP DRIVING ENGAGEMENT WITH A TIRE HAVING THE ROTATIONAL AXIS THEREOF PARALLEL TO SAID FIRST AXIS, A SECOND DRUM, MEANS FOR SUPPORTING SAID SECOND DRUM ON SAID FRAME FOR ROTATION ABOUT A SECOND AXIS PARALLEL TO SAID FIRST AXIS, A PLURALITY OF PERIPHERALLY SPACED CUTTING KNIVES ARRANGED ON SAID SECOND DRUM FOR CIRCUMFERENTIAL CUTTING ENGAGEMENT WITH SAID TIRE, AND MEANS FOR TRANSMITTING DRIVING FORCE FROM SAID FIRST DRUM TO DRIVE SAID SECOND DRUM ABOUT SAID SECOND AXIS AT A DIFFERENT PERIPHERAL SPEED FROM THAT OF SAID FIRST DRUM ABOUT SAID FIRST AXIS.
Claim 2
Independent Claim
125 words
A DEVICE FOR TREATING TIRES COMPRISING A FRAME, A FIRST DRUM, MEANS FOR SUPPORTING SAID FIRST DRUM ON SAID FRAME FOR ROTATION ABOUT A FIRST AXIS, MEANS ON SAID FIRST DRUM FOR SUBSTANTIALLY NON-SLIP DRIVING ENGAGEMENT WITH A TIRE HAVING THE ROTATIONAL AXIS THEREOF PARALLEL TO SAID FIRST AXIS, A SECOND DRUM, MEANS FOR SUPPORTING SAID SECOND DRUM ON SAID FRAME FOR ROTATION ABOUT A SECOND AXIS PARALLEL TO SAID FIRST AXIS, A PLURALITY OF PERIPHERALLY SPACED CUTTING KNIVES ARRANGED ON SAID SECOND DRUM FOR CIRCUMFERENTIAL CUTTING ENGAGEMENT WITH SAID TIRE, AND MEANS FOR TRANSMITTING DRIVING FORCE FROM SAID FIRST DRUM TO DRIVE SAID SECOND DRUM ABOUT SAID SECOND AXIS AT A DIFFERENT PERIPHERAL SPEED FROM THAT OF SAID FIRST DRUM ABOUT SAID FIRST AXIS.
References Cited (Backward Citations)
US525052A
Cited
US1353936A
Cited
US2262596A
Cited
US2504090A
Cited
US2570540A
Cited
US2651893A
Cited
US2649665A
Cited
US2737237A
Cited
US2741307A
Cited
US2924267A
Cited
US2918116A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |