Patent US5778194A successfully refreshed from Google Patents.
Patent US3291532A successfully refreshed from Google Patents.
US3291532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pavement slotting apparatus
Assignee: CONCUT Inc
•
Filing: 1964-05-11
•
Granted: 1966-12-13
•
Expires: 1984-05-11
Abstract
No abstract record available.
Inventors
- 👤 Cecil W Hatcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:44
CPC Classifications
E; E01; E01C; E01C23/00; E01C23/06; E01C23/09; E01C23/0906; E01C23/0926; E01C23/0933; B; B23; B23D; B23D45/00; B23D45/10; B23D45/105
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
IN A PAVEMENT SLOTTING MACHINE, THE COMBINATION OFF: (A) A WHEELED VEHICLE INCLUDING FRAME MEANS SUPPORTED BY FRONT AND REAR WHEEL MEANS ENGAGEABLE WITH THE PAVEMENT; (B) SAID VEHICLE HAVING A LONGITUDINAL CENTERLINE AND EACH OF SAID WHEEL MEANS BEING LATERALLY SYMMETRICAL WITH RESPECT TO SAID LONGITUDINAL CENTERLINE; (C) SAID FRONT WHEEL MEANS BEING A DRIVING WHEEL MEANS FOR PROPELLING SAID VEHICLE OVER THE PAVEMENT WITH SAID REAR WHEEL MEANS TRAILING SAID FRONT WHEEL MEANS; (D) TANDEM ROTARY SLOTTING BLADES CARRIED BY SAID FRAME MEANS FOR ROTATION ABOUT TRANSVERSE HORIZONTAL AXES AND SPACED APART ALONG SAID LONGITUDINAL CENTERLINE OF SAID VEHICLE; (E) ACTUATING MEANS FOR MOVING SAID ROTARY SLOTTING BLADES VERTICALLY INTO AND OUT OF SLOTTING ENGAGEMENT WITH THE PAVEMENT; (F) A MOTOR CARRIED BY SAID FRAME MEANS; AND (G) MEANS PROVIDING DRIVING CONNECTIONS FROM SAID MOTOR TO SAID FRONT WHEEL MEANS, SAID ROTARY SLOTTING BLADES AND SAID ACTUATING MEANS.
Claim 2
Dependent Claim
150 words
IN A PAVEMENT SLOTTING MACHINE, THE COMBINATION OFF: (A) A WHEELED VEHICLE INCLUDING FRAME MEANS SUPPORTED BY FRONT AND REAR WHEEL MEANS ENGAGEABLE WITH THE PAVEMENT; (B) SAID VEHICLE HAVING A LONGITUDINAL CENTERLINE AND EACH OF SAID WHEEL MEANS BEING LATERALLY SYMMETRICAL WITH RESPECT TO SAID LONGITUDINAL CENTERLINE; (C) SAID FRONT WHEEL MEANS BEING A DRIVING WHEEL MEANS FOR PROPELLING SAID VEHICLE OVER THE PAVEMENT WITH SAID REAR WHEEL MEANS TRAILING SAID FRONT WHEEL MEANS; (D) TANDEM ROTARY SLOTTING BLADES CARRIED BY SAID FRAME MEANS FOR ROTATION ABOUT TRANSVERSE HORIZONTAL AXES AND SPACED APART ALONG SAID LONGITUDINAL CENTERLINE OF SAID VEHICLE; (E) ACTUATING MEANS FOR MOVING SAID ROTARY SLOTTING BLADES VERTICALLY INTO AND OUT OF SLOTTING ENGAGEMENT WITH THE PAVEMENT; (F) A MOTOR CARRIED BY SAID FRAME MEANS; AND (G) MEANS PROVIDING DRIVING CONNECTIONS FROM SAID MOTOR TO SAID FRONT WHEEL MEANS, SAID ROTARY SLOTTING BLADES AND SAID ACTUATING MEANS.
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) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |