US3815765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material transport
Assignee: Caterpillar Inc
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Filing: 1973-04-25
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Granted: 1974-06-11
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Expires: 1993-04-25
Abstract
Abstract A material transport providing a material receiving body having a forwardly disposed loading end and a normally closed rearward ejection end including a pusher mechanism disposed transversely of and reciprocably mounted within the material receiving body. The pusher mechanism includes a pair of members which are relatively movable between a first position providing an opening therebetween for admitting material into the material receiving body through the pusher mechanism and a second position forming a substantially continuous wall. A power actuating device is operatively associated with the pusher mechanism for selectively moving the pair of members between the first and second positions and for selectively reciprocating the pusher mechanism between the loading and ejection ends of the material receiving body.
Inventors
- 👤 R Moser
- 👤 R Stedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:30
CPC Classifications
B; B65; B65F; B65F3/00; B65F3/24; B65F3/28; B60; B60P; B60P1/00; B60P1/006; B65F3/14; B65F3/20; B65F3/205
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
206 words
A material transport providing a material receiving body having a loading end and a normally closed ejection end, comprising; pusher means including frame means having a pair of pusher members mounted thereon and disposed within said material receiving body for reciprocal movement between said loading and ejection ends thereof, means for moving at least one member of said pair of members relative to the other member of said pair of members on said frame means between a first and second position when said members are located adjacent said loading end such that when the one movable member is in said first position it provides an opening and a material guiding means for admitting material into said receiving body and when said movable member is in said second position it forms a substantially continuous material pushing wall surface with the other member of said pair of members, multi-phase actuating means operatively connected to said pusher means for selective powered movement of said members between said first and second positions in one phase of operation and for selective powered reciprocation of said pusher means between said loading and ejection ends of said material receiving body when said members are in said second position in another phase of operation.
Claim 2
Dependent Claim
206 words
A material transport providing a material receiving body having a loading end and a normally closed ejection end, comprising; pusher means including frame means having a pair of pusher members mounted thereon and disposed within said material receiving body for reciprocal movement between said loading and ejection ends thereof, means for moving at least one member of said pair of members relative to the other member of said pair of members on said frame means between a first and second position when said members are located adjacent said loading end such that when the one movable member is in said first position it provides an opening and a material guiding means for admitting material into said receiving body and when said movable member is in said second position it forms a substantially continuous material pushing wall surface with the other member of said pair of members, multi-phase actuating means operatively connected to said pusher means for selective powered movement of said members between said first and second positions in one phase of operation and for selective powered reciprocation of said pusher means between said loading and ejection ends of said material receiving body when said members are in said second position in another phase of operation.
Claim 3
Dependent Claim
51 words
The material transport of claim 1 wherein one of said pair of members is a generally upright pusher blade having opposite upper and lower ends and a rearward wall, and the other of said pair of members is a material loading ramp having a pivot end and an opposite free end.
Claim 4
Dependent Claim
137 words
The material transport of claim 2 wherein said material receiving body includes a pair of parallel opposite sidewalls and said frame means includes; a carrier frame having a pair of interconnected laterally spaced upstanding side plates individually disposed adjacent to said opposite sidewalls of the body and each having a forward end, a lower rearward corner, and a pivot connection mounted adjacent said lower rearward corner, said pusher blade being supported by said side plates in interconnecting relation therebetween adjacent the forward ends thereof, and said pivot connection pivotally mounting the pivot end of said ramp to said side plate for swinging movement of said free end in an arcuate path between a lower position disposed below said lower end of the pusher blade and a raised position disposed along said rearward wall of the pusher blade.
Claim 5
Dependent Claim
107 words
The material transport of claim 3 wherein said multi-phase actuating means includes; a pair of levers individually rotatably connected to said side plates of the carrier frame and having opposite ends, one end thereof being nonrotatably mounted on said pivot end of the ramp; and a pair of hydraulic jacks individually mounted on said body and having an end pivotally connected to the other end of said levers whereby initial extension of said hydraulic jacks causes said pivotal movement of said ramp from its lower position to its raised position and further extension of said jacks moves said pusher means toward the ejection end of said body.
Claim 6
Dependent Claim
68 words
The material transport of claim 4 including; a pair of laterally spaced horizontal guide members, longitudinally extended within and attached to said material receiving body; and a pair of roller members individually attached to each of said side plates of the carrier frame for rolling engagement with said guide members whereby said pusher means is supported for longitudinal movement between said loading and ejection ends of the body.
Claim 7
Dependent Claim
98 words
The material transport of claim 5 wherein each of said side plates of the carrier frame are generally triangularly shaped and are disposed in substantially parallel spaced relationship to their respectively adjacent sidewalls of said body and have a substantially vertical front edge and a generally inclined rearward edge sloping upwardly forwardly to form an upper apex with said front edge, and said carrier frame includes a pair of outwardly extending end plates individually connected to said inclined edges and having outwardly disposed edges in closely sealing material scraping relationship to their respectively adjacent sidewalls of said body.
Claim 8
Dependent Claim
156 words
The material transport of claim 6 including; pivot means for pivotally connecting the upper end of the pusher blade to the carrier frame adjacent to the apexes of the carrier side plates; and control means including a link having a first pivot connection pivotally connecting one end thereof to the ramp intermediate its pivot and free ends, and a second pivot connection pivotally connecting the other end thereof to the pusher blade adjacent to its lower end for coupling the pusher blade to the ramp whereby initial upward pivotal movement of said ramp from said lower position permits the free end of the ramp to move into material scraping relationship with the rearward wall of said pusher blade adjacent its lower end and thereafter continued pivotal movement of said ramp toward said raised position is operative through said link to maintain said material scraping relationship of said free end of the ramp with said rearward wall.
Claim 9
Dependent Claim
140 words
The material transport of claim 7 wherein said second pivot connection is disposed forwardly of and elevationally higher than the first pivot connection when the ramp is in its lower position forwardly of and substantially level therewith when the free end of the ramp is raised adjacent the lower end of the pusher blade and rearwardly of and elevationally lower than the first pivot connection when the ramp is in its raised position to induce forward pivotal movement of the pusher blade during initial upward pivotal movement of the ramp to permit clearance of the free end of the ramp with the lower end of the pusher blade and thereafter to induce rearward pivotal movement of the pusher blade in relatively closely spaced following relationship with the ramp during continued upward pivotal movement of the ramp toward the raised position.
Claim 10
Dependent Claim
71 words
The material transport of claim 8 wherein said control means includes a contoured lower surface formed on the rearward wall of the pusher blade to cooperate with said link in maintaining said material scraping relationship of the free end of the ramp with said rearward wall and to permit substantially linear alignment of the pusher blade with the ramp when disposed in said raised position to minimize entrapment of material therebetween.
Claim 11
Dependent Claim
60 words
The material transport of claim 5 wherein aid pusher blade is formed integrally with said carrier frame and said rearward wall thereof includes; a rearwardly disposed peak formed thereon intermediate the upper and lower ends of said pusher blade and having a relatively steep forwardly sloping surface extending upwardly therefrom and an arcuately shaped surface extending downwardly and forwardly therefrom.
Claim 12
Dependent Claim
67 words
The material transport of claim 10 wherein said continuous material pushing wall surface is formed when said loading ramp is disposed in said raised position with said free end of the ramp being disposed adjacent to said peak, said continuous material pushing wall surface having a rearward portion sloping forwardly and upwardly from the pivot end of said ramp to the upper end of said pusher blade.
Claim 13
Dependent Claim
59 words
The material transport of claim 11 wherein said arcuately shaped surface substantially coincides with the arcuate path described by the free end of said ramp so that said free end is continually relatively closely disposed adjacent to said arcuately shaped surface during the pivotal movement of the ramp between the lower end of the pusher blade and the peak.
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) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |