Patent US3901553A successfully refreshed from Google Patents.
US3901553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete pavement cutting machine
Assignee: CIMLINE ACQUISITION Co
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Filing: 1974-10-30
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Granted: 1975-08-26
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Expires: 1994-10-30
Abstract
Abstract A mobile frame has a mounting platform underlying the mobile frame which is mounted for swinging movements toward and away from the upper surface of a strip of concrete pavement at a constant degree of angular relationship with the pavement. A plurality of cutting discs are mounted in tandem on the platform for rotation in a common vertical frame. Hydraulic power devices driven by an engine and control apparatus are provided to drive the cutting discs, impart movements to the platform, and impart steering and driving movements to the wheels of the mobile frame. A flow of liquid coolant is provided for the cutting discs and the cutting discs are so disposed relative to the mobile frame that each disc rearwardly of the front disc cuts into the pavement at a greater depth from the surface of the pavement than the preceding disc. A trolley device connected to the steerable wheels of the mobile frame guides the mobile frame in its path of travel along the pavement.
Inventors
- 👤 Wynn S Binger
- 👤 Robert E Shope
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:33
CPC Classifications
B; B23; B23D; B23D45/00; B23D45/10; B23D45/105; B28; B28D; B28D1/00; B28D1/02; B28D1/04; B28D1/045; B28D1/048; E; E01; E01C; E01C23/00; E01C23/06; E01C23/09; E01C23/0906; E01C23/0926; E01C23/0933
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
193 words
A concrete pavement cutting machine comprising: a. A mobile frame including fixed and steerable wheels mounted for movement of said mobile frame along a path of travel; b. a mounting platform underlying said mobile frame; c. arm means mounting said platform to said mobile frame for swinging movements toward and away from the concrete pavement underlying said mobile frame at a constant degree of angular relationship with the plane of the concrete pavement; d. a plurality of cutting discs mounted in tandem on said platform for rotation in a common vertical plane extending longitudinally of the direction of travel of said mobile frame; e. hydraulic power means including engine means for driving said cutting discs, for imparting said movement to said platform, for Driving one of said fixed and steerable wheels and for steering said steerable wheels; f. Means for adjusting the depth to which said cutting discs cut into the concrete pavement whereby said cutting discs cut into the concrete pavement a substantially equal amount at progressively greater depths from the surface of the concrete pavement; and g. means for introducing a flow of liquid coolant to each of said cutting discs.
Claim 2
Dependent Claim
193 words
A concrete pavement cutting machine comprising: a. A mobile frame including fixed and steerable wheels mounted for movement of said mobile frame along a path of travel; b. a mounting platform underlying said mobile frame; c. arm means mounting said platform to said mobile frame for swinging movements toward and away from the concrete pavement underlying said mobile frame at a constant degree of angular relationship with the plane of the concrete pavement; d. a plurality of cutting discs mounted in tandem on said platform for rotation in a common vertical plane extending longitudinally of the direction of travel of said mobile frame; e. hydraulic power means including engine means for driving said cutting discs, for imparting said movement to said platform, for Driving one of said fixed and steerable wheels and for steering said steerable wheels; f. Means for adjusting the depth to which said cutting discs cut into the concrete pavement whereby said cutting discs cut into the concrete pavement a substantially equal amount at progressively greater depths from the surface of the concrete pavement; and g. means for introducing a flow of liquid coolant to each of said cutting discs.
Claim 3
Dependent Claim
23 words
The structure of claim 1 in further combination with adjustable stop means for limiting the movement of said platform toward the concrete pavement.
Claim 4
Dependent Claim
90 words
The structure of claim 1 wherein each of said cutting discs is fixedly mounted on an axle which is rotatably mounted on said platform, wherein said engine means includes a power transmission and wherein said hydraulic power means for driving said cutting discs includes a hydraulic motor mounted on said platform and coupled to each of said axles, a plurality of hydraulic pumps coupled to said engine transmission, each one of said hydraulic pumps being connected to a different one of said hydraulic motors and to a source of fluid.
Claim 5
Dependent Claim
63 words
The structure of claim 3 wherein the connections of said hydraulic pumps to said hydraulic motors includes a plurality of flexible hoses, said flexible hoses being positioned to bend in generally flat planes responsive to movement of said platform whereby a minimum of rotational forces are exerted on the connections of said flexible hoses to respective hydraulic motors and pumps during such movement.
Claim 6
Dependent Claim
35 words
The structure of claim 3 wherein the fluid displacement of each of said hydraulic pumps is variable and reversible and each of said pumps includes a fluid return conduit leading to said source of fluid.
Claim 7
Dependent Claim
53 words
The structure of claim 5 including a fluid manifold, wherein each of said fluid return conduits is connected to said fluid manifold, and wherein the liquid coolant introducing means includes a fluid conduit having a heat exchange coil passing through said manifold whereby the liquid coolant cools the fluids flowing through said manifold.
Claim 8
Dependent Claim
92 words
The structure of claim 3, wherein the hydraulic power means for imparting movement to said platform comprises: a. a hydraulic elevator ram extending between said mobile frame and platform; b. a separate hydraulic pump coupled to said engine means; c. fluid conduits connecting said separate hydraulic pump to said source of fluid and to said hydraulic elevator ram; and d. control valve means interposed in said fluid conduit for controlling the flow of liquid to said hydraulic elevator ram to impart movement to said platform toward and away from the concrete pavement.
Claim 9
Dependent Claim
38 words
The structure of claim 7 in further combination with manually operated pump means connected to said hydraulic elevator ram and said source of fluid for manually imparting movements to said platform toward and away from the concrete pavement.
Claim 10
Dependent Claim
118 words
The structure of claim 7 wherein said steerable wheels include a wheel carriage mounted on said mobile frame for rotation on a vertical axis, a tongue extending from said carriage in the direction of travel of said mobile frame, and wherein said hydraulic power means for steering said steerable wheels comprises: a. a hydraulic steering ram extending between said frame and carriage so as to cause rotation of said carriage on said vertical axis; b. fluid conduits connecting said steering ram to said separate pump and source of fluid; and c. control valve means interposed in said fluid conduits of said steering ram for controlling the movement of said wheel carriage in opposite directions on said vertical axis.
Claim 11
Dependent Claim
173 words
The structure of claim 9 in further combination with a pair of opposed trolley carriages, each trolley of said pair of trolley carriages being constructed to have rolling engagement with the upper surface and a different one of opposed side edges of the concrete pavement, a pair of first control rods having opposite ends of each one pivotally connected to a different one of said trolley carriages and said wheel carriage tongue, a pair of second control rods having opposite ends of each one pivotally connected to a different one of said trolley carriages and said wheel carriage, each of said first and second pair of control rods being extensible and retractable, tension means for biasing each of said first pair of control rods in a direction to retract said control rods whereby each one of said trolley carriages is maintained in rolling engagement with a respective side edge of the concrete pavement and means on each of said second control rods for locking said second control rods against said extensible retractable movements.
Claim 12
Dependent Claim
96 words
The structure of claim 9 wherein said steerable wheels include a pair of spaced wheel members mounted for rotation on a horizontal axis extending transversely to the direction of travel of said mobile frame, a pair of hydraulic wheel motors each operatively coupled to a different one of said wheel members, fluid conduits connecting each hydraulic wheel motor to said separate hydraulic pump, and control valve means for controlling the flow of fluids to said hydraulic motors whereby said hydraulic wheel motors may be stopped and started and operated in forward and reverse directions of rotation.
Claim 13
Dependent Claim
37 words
The structure of claim 11 in further combination with a speed control valve connected to said source of fluid and to said control valve means of said hydraulic wheel motors for controlling the speed of operation thereof.
Claim 14
Dependent Claim
73 words
The structure of claim 1 wherein said arm means is a pair of front arms and a pair of rear arms each pivotally connected to respective front and rear portions of said platform and said mobile frame in a parallelogram arrangement and wherein said means for adjusting the depth to which said cutting discs cut into the concrete pavement is a shim interposed between said rear pair of arms and said mobile frame.
Claim 15
Dependent Claim
68 words
The structure of claim 1 wherein said platform includes a shroud enclosing the upper portion of said cutting discs and wherein said means for introducing a flow of liquid coolant to said cutting discs includes a rigid conduit extending along opposite sides of said cutting discs within said shroud, said conduits being formed with apertures for spraying liquid coolant on opposite sides of each of said cutting discs.
Claim 16
Dependent Claim
194 words
A concrete pavement cutting machine comprising: a. a mobile frame including fixed and steerable wheels mounted for movement of said mobile frame along a path of travel; b. a mounting platform underlying said mobile frame; c. arm means mounting said platform to said mobile frame for swinging movements toward and away from the concrete pavement underlying said mobile frame at a constant degree of angular relationship with the plane of the concrete pavement; d. a plurality of cutting discs mounted in tandem on said platform for rotation in a common vertical plane extending longitudinally of the direction of travel of said mobile frame; e. hydraulic power means including engine means for driving said cutting discs, for imparting said movement to said platform, for driving one of said fixed and steerable wheels, and for steering said steerable wheels; and f. means for introducing a flow of liquid coolant to each of said cutting discs; g. said cutting discs being so disposed relative to said mobile frame that each disc rearwardly of the front one of said discs cuts into the pavement at a greater depth from the surface of the pavement than the preceeding disc.
Claim 17
Dependent Claim
194 words
A concrete pavement cutting machine comprising: a. a mobile frame including fixed and steerable wheels mounted for movement of said mobile frame along a path of travel; b. a mounting platform underlying said mobile frame; c. arm means mounting said platform to said mobile frame for swinging movements toward and away from the concrete pavement underlying said mobile frame at a constant degree of angular relationship with the plane of the concrete pavement; d. a plurality of cutting discs mounted in tandem on said platform for rotation in a common vertical plane extending longitudinally of the direction of travel of said mobile frame; e. hydraulic power means including engine means for driving said cutting discs, for imparting said movement to said platform, for driving one of said fixed and steerable wheels, and for steering said steerable wheels; and f. means for introducing a flow of liquid coolant to each of said cutting discs; g. said cutting discs being so disposed relative to said mobile frame that each disc rearwardly of the front one of said discs cuts into the pavement at a greater depth from the surface of the pavement than the preceeding disc.
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) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |