Patent US4087209A successfully refreshed from Google Patents.
Patent US3767262A successfully refreshed from Google Patents.
US3767262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Road cutting machine with laterally extensible drum and method
Assignee: Greenside Machine Co Ltd
•
Filing: 1971-11-17
•
Granted: 1973-10-23
•
Expires: 1991-11-17
Abstract
Abstract A machine for removing a worn road surface comprises a chassis on which is supported a rotary drum armed with cutting picks. To make possible a reduction in the inner radius of an arcuate path cut out by the rotary drum, the drum is traversable into a position lying outside the ground plan of the machine as defined by the wheels on which the machine is supported for movement.
Inventors
- 👤 G Pentith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:57
CPC Classifications
E; E01; E01C; E01C23/00; E01C23/06; E01C23/08; E01C23/085; E01C23/088
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
132 words
A machine for removing road surfaces comprising a chassis, forward and rearward ground engaging travel means for supporting said chassis, a rotary pick-carrying cutting device supported by said chassis for rotation about a horizontal axis extending generally transversely of the direction of travel of said machine, means on said machine for rotating said cutting device, means on said machine for adjusting said cutting device in a substantially vertical plane to set the depth of road surface to be removed, and means on said machine to displace said cutting device transversely of said machine until at least part of said cutting device extends outside of the ground plan of said machine as defined by said ground engaging support means, thereby to reduce the inside radius of the path cut by said cutting device.
Claim 2
Dependent Claim
132 words
A machine for removing road surfaces comprising a chassis, forward and rearward ground engaging travel means for supporting said chassis, a rotary pick-carrying cutting device supported by said chassis for rotation about a horizontal axis extending generally transversely of the direction of travel of said machine, means on said machine for rotating said cutting device, means on said machine for adjusting said cutting device in a substantially vertical plane to set the depth of road surface to be removed, and means on said machine to displace said cutting device transversely of said machine until at least part of said cutting device extends outside of the ground plan of said machine as defined by said ground engaging support means, thereby to reduce the inside radius of the path cut by said cutting device.
Claim 3
Dependent Claim
37 words
The machine of claim 1 further characterized by a linkage on said machine supporting said cutting device and permitting swinging movement thereof transversely of said machine, and fluid-operable ram means on said machine for driving said linkage.
Claim 4
Dependent Claim
15 words
The machine of claim 2 wherein said ram means constitutes a portion of said linkage.
Claim 5
Dependent Claim
46 words
The machine of claim 1 wherein said transverse displacement means includes a carriage supporting said cutting device, a transversely extending beam on said machine slidably mounting said carriage, and a fluid-operable ram means for transversely sliding said carriage and its supported cutting device along said beam.
Claim 6
Dependent Claim
37 words
The machine of claim 4 wherein said ram means includes an elongated flexible element carried on said beam, and a pair of rams on said machine, each said ram attached to an end of said flexible element.
Claim 7
Dependent Claim
24 words
The machine of claim 1 wherein said means for rotating said cutting device includes at least one hydraulic motor mounted within said cutting device.
Claim 8
Independent Claim
90 words
A method of removing a road surface using a machine equipped with a cutting drum rotating about a horizontal axis wherein, while said machine negotiates an arcuate path, said cutting drum is traversed axially in a direction which is transverse to the direction of travel of said machine, said cutting drum being traversed between a position within the ground plan of said machine and a position at least in part outwardly of the ground plan on the side of the machine nearer the center of curvature of the arcuate path.
Claim 9
Independent Claim
90 words
A method of removing a road surface using a machine equipped with a cutting drum rotating about a horizontal axis wherein, while said machine negotiates an arcuate path, said cutting drum is traversed axially in a direction which is transverse to the direction of travel of said machine, said cutting drum being traversed between a position within the ground plan of said machine and a position at least in part outwardly of the ground plan on the side of the machine nearer the center of curvature of the arcuate path.
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) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |