Patent US2662083A successfully refreshed from Google Patents.
Patent US3746101A successfully refreshed from Google Patents.
US3746101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Earth working machine
Assignee: Caterpillar Paving Products Inc
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Filing: 1971-02-01
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Granted: 1973-07-17
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Expires: 1991-02-01
Abstract
Abstract A soil stabilizing and conditioning machine with power driven traction wheels by which the machine is propelled forwardly while a horizontally disposed soil cutting and pulverizing rotor operating under a hood, and rotating in the direction to have its tines enter the fresh soil with a forward up-cutting action, resists forward propulsion of the machine and also mounds up the soil cut from the ground in front of the advancing rotor; an adjustable gate which forms the front wall of the hood and coacts with the uncut ground in front of the rotor precludes an excessive build-up of loose soil in front of the rotor, so that the presence thereof does not seriously increase the power required to propel the machine forward and drive the rotor, and when the machine is in operation and the hood is being dragged along the ground the load thus imposed upon the power source driving the traction wheels is substantially reduced by supporting part of the weight of the hood by a levitating connection between the hood and the chassis of the machine.
Inventors
- 👤 H Takata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:56
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/78; E02F3/783
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
421 words
In an earth working machine having a. a chassis supported in part by traction wheels by which the machine is propelled forwardly during work performing operation of the machine, b. a horizontally disposed rotor vertically adjustably supported from the chassis and having soil cutting and pulverizing tines thereon, c. a hood over the rotor to provide a mixing chamber in which pulverization of the soil acted upon by the rotor tines takes place, the hood having side walls with skids on the bottom edges thereof which ride upon the ground during work performing operation of the machine, d. a power plant on the chassis, and e. hydrostatic drive means for drivingly connecting the traction wheels with the power plant, the improvement which comprises the combination of: A. means drivingly connecting the rotor with the power plant and by which rotation is imparted to the rotor in the direction opposite that in which the traction wheels turn in propelling the machine forwardly, whereby 1. the entry of the rotor tines into the unworked ground as the rotor is advanced by the forward propulsion of the machine opposes the torque applied to the traction wheels by the hydrostatic drive means, so that the torque applied to the traction wheels by said drive means is steady and the advance of the machine is likewise steady and surge-free, and 2. the action of the rotor tines causes the soil being worked to mound up in front of the rotor and thereby add to the power required to drive the rotor and propel the machine forward in proportion to the size of the mound; and B. a gate adjustably mounted on the hood forming a front wall for the hood and coacting with the adjacent side walls of the hood and the uncut ground in front of the rotor to define the only exit at the front of the hood through which loose soil can be expelled, said gate having a bottom edge which is raised and lowered through a predetermined range by adjustment of the gate and which bottom edge forms the top of the exit so that the depth to which the expelled loose soil can mound up in front of the advancing rotor depends upon the position of adjustment of the gate; and C. means for securing the gate in a selected position of adjustment, so that its coaction with the uncut ground may be adapted to different soil conditions and to the depth to which the rotor has been adjusted to cut.
Claim 2
Dependent Claim
421 words
In an earth working machine having a. a chassis supported in part by traction wheels by which the machine is propelled forwardly during work performing operation of the machine, b. a horizontally disposed rotor vertically adjustably supported from the chassis and having soil cutting and pulverizing tines thereon, c. a hood over the rotor to provide a mixing chamber in which pulverization of the soil acted upon by the rotor tines takes place, the hood having side walls with skids on the bottom edges thereof which ride upon the ground during work performing operation of the machine, d. a power plant on the chassis, and e. hydrostatic drive means for drivingly connecting the traction wheels with the power plant, the improvement which comprises the combination of: A. means drivingly connecting the rotor with the power plant and by which rotation is imparted to the rotor in the direction opposite that in which the traction wheels turn in propelling the machine forwardly, whereby 1. the entry of the rotor tines into the unworked ground as the rotor is advanced by the forward propulsion of the machine opposes the torque applied to the traction wheels by the hydrostatic drive means, so that the torque applied to the traction wheels by said drive means is steady and the advance of the machine is likewise steady and surge-free, and 2. the action of the rotor tines causes the soil being worked to mound up in front of the rotor and thereby add to the power required to drive the rotor and propel the machine forward in proportion to the size of the mound; and B. a gate adjustably mounted on the hood forming a front wall for the hood and coacting with the adjacent side walls of the hood and the uncut ground in front of the rotor to define the only exit at the front of the hood through which loose soil can be expelled, said gate having a bottom edge which is raised and lowered through a predetermined range by adjustment of the gate and which bottom edge forms the top of the exit so that the depth to which the expelled loose soil can mound up in front of the advancing rotor depends upon the position of adjustment of the gate; and C. means for securing the gate in a selected position of adjustment, so that its coaction with the uncut ground may be adapted to different soil conditions and to the depth to which the rotor has been adjusted to cut.
Claim 3
Dependent Claim
55 words
The improvement in earth working machines set forth in claim 1, wherein said means for securing the gate in a selected position of adjustment comprises remotely controlled power means connected with the gate and operable to move the same to any position within its range of adjustment and to hold the same in such position.
Claim 4
Dependent Claim
195 words
the action of the rotor tines causes the soil being worked to mound up in front of the rotor and thereby add to the power required to drive the rotor and propel the machine forward in proportion to the size of the mound; and B. a gate adjustably mounted on the hood forming a front wall for the hood and coacting with the adjacent side walls of the hood and the uncut ground in front of the rotor to define the only exit at the front of the hood through which loose soil can be expelled, said gate having a bottom edge which is raised and lowered through a predetermined range by adjustment of the gate and which bottom edge forms the top of the exit so that the depth to which the expelled loose soil can mound up in front of the advancing rotor depends upon the position of adjustment of the gate; and C. means for securing the gate in a selected position of adjustment, so that its coaction with the uncut ground may be adapted to different soil conditions and to the depth to which the rotor has been adjusted to cut.
Claim 5
Dependent Claim
195 words
the action of the rotor tines causes the soil being worked to mound up in front of the rotor and thereby add to the power required to drive the rotor and propel the machine forward in proportion to the size of the mound; and B. a gate adjustably mounted on the hood forming a front wall for the hood and coacting with the adjacent side walls of the hood and the uncut ground in front of the rotor to define the only exit at the front of the hood through which loose soil can be expelled, said gate having a bottom edge which is raised and lowered through a predetermined range by adjustment of the gate and which bottom edge forms the top of the exit so that the depth to which the expelled loose soil can mound up in front of the advancing rotor depends upon the position of adjustment of the gate; and C. means for securing the gate in a selected position of adjustment, so that its coaction with the uncut ground may be adapted to different soil conditions and to the depth to which the rotor has been adjusted to cut.
Claim 6
Dependent Claim
56 words
wherein the means providing a towing connection between the hood and the chassis comprises said pair of arms and lever means connecting said arms with the hood, the connections of the lever means with the arms and with the hood being located to accommodate up and down adjustment of the rotor with respect to the hood,
Claim 7
Dependent Claim
56 words
wherein the means providing a towing connection between the hood and the chassis comprises said pair of arms and lever means connecting said arms with the hood, the connections of the lever means with the arms and with the hood being located to accommodate up and down adjustment of the rotor with respect to the hood,
Claim 8
Dependent Claim
42 words
wherein upward adjustment of the rotor with respect to the hood is limited so that upon elevation of the rotor by said pair of arms far enough to lift the rotor off the ground, the hood is likewise lifted off the ground,
Claim 9
Dependent Claim
42 words
wherein upward adjustment of the rotor with respect to the hood is limited so that upon elevation of the rotor by said pair of arms far enough to lift the rotor off the ground, the hood is likewise lifted off the ground,
Claim 10
Dependent Claim
159 words
The improvement in earth working machines set forth in claim 1, wherein the hood has a top wall as well as side walls, and wherein the gate has parallel top and bottom edges and sPans the distance between the side walls of the hood with the opposite ends of the gate in juxtaposition to the side walls of the hood, and wherein the adjustable mounting of the gate comprises hinge means connecting the top edge of the gate to the top wall of the hood, and by which hinge means the gate is suspended for movement from a pendant position at which its bottom edge is at the lowermost limit of its range of adjustment to an inclined position at which its bottom edge is at a higher elevation, and wherein the means for securing the gate in a selected position of adjustment comprises means for securing the ends of the gate to the side walls of the hood.
Claim 11
Dependent Claim
57 words
The improvement in earth working machines set forth in claim 1, further characterized by nozzle means on the gate for injecting a liquid additive into the zone between the gate and the orbit of the rotor tines for admixture with the soil being thrown about and pulverized in said zone by the action of the rotor tines.
Claim 12
Dependent Claim
22 words
wherein said resiliently yieldable means has a load carrying connection with the chassis and another load carrying connection with the hood, and
Claim 13
Dependent Claim
22 words
wherein said resiliently yieldable means has a load carrying connection with the chassis and another load carrying connection with the hood, and
Claim 14
Dependent Claim
24 words
wherein one of said connections incorporates lost motion which relieves the resiliently yieldable means of load when the hood is lifted off the ground.
Claim 15
Dependent Claim
24 words
wherein one of said connections incorporates lost motion which relieves the resiliently yieldable means of load when the hood is lifted off the ground.
Claim 16
Dependent Claim
69 words
The improvement in earth working machines set forth in claim 4, wherein said nozzle means comprises a series of separate nozzles spaced lengthwise of the gate, and further characterized by duct means for delivering a liquid additive to said nozzles and valve means for controlling connection of said duct means with the nozzles, whereby liquid additive may be delivered simultaneously to all or a selected number of said nozzles.
Claim 17
Dependent Claim
146 words
The improvement in earth working machines set forth in claim 1, further characterized by: means providing a towing connection between the hood and the chassis of the machine and through which the hood is dragged along the ground by the advancing machine during performance of its work, said towing connection accommodating up and down movement of the hood as required by variations in elevation of the ground being traversed, and resiliently yieldable means supportingly connecting the hood with a portion of the chassis above the hood through which part of the weight of the hood is borne by the chassis when the hood is in contact with the ground to thereby diminish the frictional force which resists advance of the machine due to the hood being dragged along the ground, whereby load imposed upon the power plant in effecting forward propulsion of the machine is reduced.
Claim 18
Dependent Claim
367 words
In an earth working machine having a. a chassis supported in part by traction wheels by which the machine is propelled forwardly during work performing operation of the machine, b. a horizontally disposed rotor vertically adjustably supported from the chassis and having soil cutting and pulverizing tines thereon, c. a hood over the rotor to provide a mixing chamber in which pulverization of the soil acted upon by the rotor tines takes place, the hood having side walls with skids on the bottom edges thereof which ride upon the ground during work performing operation of the machine, d. a power plant on the chassis, and e. hydrostatic drive means for drivingly connecting the traction wheels with the power plant, the improvement which comprises the combination of: A. means drivingly connecting the rotor with the power plant and by which rotation is imparted to the rotor in the direction opposite that in which the traction wheels turn in propelling the machine forwardly, whereby the entry of the rotor tines into the unworked ground as the rotor is advanced by the forward propulsion of the machine opposes the torque applied to the traction wheels by the hydrostatic drive means, so that the torque applied to the traction wheels by said drive means is steady and the advance of the machine is likewise steady and surge-free; B. means providing a towing connection between the hood and the chassis of the machine and through which the hood is dragged along the ground by the advancing machine during performance of its work, said towing connection accommodating up and down movement of the hood relative to the chassis and to the rotor and independently of them as required by variations in elevation of the ground being traversed; and C. resiliently yieldable means supportingly connecting the hood with a portion of the chassis through which part of the weight of the hood is borne by the chassis when the hood is in contact with the ground to thereby diminish the frictional force which resists advance of the machine due to the hood being dragged along the ground, whereby the load imposed upon the power plant in effecting forward propulsion of the machine is reduced.
Claim 19
Dependent Claim
367 words
In an earth working machine having a. a chassis supported in part by traction wheels by which the machine is propelled forwardly during work performing operation of the machine, b. a horizontally disposed rotor vertically adjustably supported from the chassis and having soil cutting and pulverizing tines thereon, c. a hood over the rotor to provide a mixing chamber in which pulverization of the soil acted upon by the rotor tines takes place, the hood having side walls with skids on the bottom edges thereof which ride upon the ground during work performing operation of the machine, d. a power plant on the chassis, and e. hydrostatic drive means for drivingly connecting the traction wheels with the power plant, the improvement which comprises the combination of: A. means drivingly connecting the rotor with the power plant and by which rotation is imparted to the rotor in the direction opposite that in which the traction wheels turn in propelling the machine forwardly, whereby the entry of the rotor tines into the unworked ground as the rotor is advanced by the forward propulsion of the machine opposes the torque applied to the traction wheels by the hydrostatic drive means, so that the torque applied to the traction wheels by said drive means is steady and the advance of the machine is likewise steady and surge-free; B. means providing a towing connection between the hood and the chassis of the machine and through which the hood is dragged along the ground by the advancing machine during performance of its work, said towing connection accommodating up and down movement of the hood relative to the chassis and to the rotor and independently of them as required by variations in elevation of the ground being traversed; and C. resiliently yieldable means supportingly connecting the hood with a portion of the chassis through which part of the weight of the hood is borne by the chassis when the hood is in contact with the ground to thereby diminish the frictional force which resists advance of the machine due to the hood being dragged along the ground, whereby the load imposed upon the power plant in effecting forward propulsion of the machine is reduced.
Claim 20
Dependent Claim
11 words
The improvement in earth working machines set forth in claim 7,
Claim 21
Dependent Claim
103 words
The improvement in earth working machines set forth in claim 7, further characterized by: a gate adjustably mounted on the hood forming a front wall for the hood and coacting with the adjacent side walls of the hood and with the uncut ground in front of the rotor to define the only exit at the front of the hood through which loose soil can be expelled, so that by adjustment of the gate the size of the mound of loose soil that can be built up in front of the rotor by virtue of its forward and upward cutting action can be limited.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |