Patent US3578186A successfully refreshed from Google Patents.
US3578186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle unloader
Assignee: Individual
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Filing: 1969-04-10
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Granted: 1971-05-11
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Expires: 1989-04-10
Abstract
Abstract A pusher and a floor belt in a dump box of a vehicle for unloading or dumping material from the dump box. The pusher and the belt are moved longitudinally through the dump box by a winch and interconnecting cables. Batch boards and a tailgate are also carried by tracks connected to the dump box to provide separate compartments for carrying individual batches of material. In one modification the tracks are arranged so that the tailgate and sequentially each batch board can be moved to the rear of the dump box beyond the floor belt so that the material on the belt will be discharged from the dump box as the pusher is moved toward the rear of the box.
Inventors
- 👤 Henry D Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:33
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/36
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
174 words
An unloading device for a vehicle body with sidewalls comprising, a generally nonextensible flexible floor belt having upper and lower runs extending longitudinally of the body between said sidewalls, floor belt load supports underlying at least a portion of the belt for slideably supporting the belt for longitudinal movement between the sidewalls, a generally vertically extending pusher between said sidewalls, guide means on the sidewalls for guiding movement of the pusher lengthwise of the sidewalls, said pusher being fixedly connected adjacent its lower end to said belt for movement therewith and so that a pull on said belt is transmitted to the lower end of said pusher, first tension means connected to the belt and second tension means connected to said pusher adjacent the upper end thereof, and extending rearwardly then downwardly then forwardly and connected to the lower run of said belt at a point remote from its connection with said pusher for applying a pulling force to said belt and simultaneously to said pusher adjacent both the upper and lower ends thereof.
Claim 2
Dependent Claim
174 words
An unloading device for a vehicle body with sidewalls comprising, a generally nonextensible flexible floor belt having upper and lower runs extending longitudinally of the body between said sidewalls, floor belt load supports underlying at least a portion of the belt for slideably supporting the belt for longitudinal movement between the sidewalls, a generally vertically extending pusher between said sidewalls, guide means on the sidewalls for guiding movement of the pusher lengthwise of the sidewalls, said pusher being fixedly connected adjacent its lower end to said belt for movement therewith and so that a pull on said belt is transmitted to the lower end of said pusher, first tension means connected to the belt and second tension means connected to said pusher adjacent the upper end thereof, and extending rearwardly then downwardly then forwardly and connected to the lower run of said belt at a point remote from its connection with said pusher for applying a pulling force to said belt and simultaneously to said pusher adjacent both the upper and lower ends thereof.
Claim 3
Dependent Claim
21 words
The unloading device for a vehicle body as defined in claim 1 in which said floor belt load supports comprise rollers.
Claim 4
Dependent Claim
46 words
The unloading device for a vehicle body as defined in claim 1 including seals which comprise longitudinally extending first blocks with grooves therein carried by the body and second blocks of the flexible material engaging in said grooves connected to and extending longitudinally of said belt.
Claim 5
Dependent Claim
43 words
The unloading device for a vehicle body as defined in claim 1 in which said second tension means comprises cables connected to said pusher and to said belt so that foreshortening of said cables imparts longitudinal movement to said pusher and said belt.
Claim 6
Dependent Claim
131 words
An unloading device for a vehicle body with sidewalls comprising: a. a floor belt extending longitudinally of the sidewalls, said belt having at least one channel extending generally transversely of said belt, b. floor belt load supports underlying at least a portion of said belt, c. tracks extending generally longitudinally of and connected to each of the sidewalls, said tracks being generally parallel to said floor belt, d. a generally vertically extending pusher located between and generally transverse to the sidewalls, said pusher being slidably mounted on said tracks and bEing spaced from said channel and connected to said belt, and e. at least one batch board slidably carried by said tracks between and generally transverse to the walls, said batch board extending generally vertically and being engageable with said channel.
Claim 7
Dependent Claim
131 words
An unloading device for a vehicle body with sidewalls comprising: a. a floor belt extending longitudinally of the sidewalls, said belt having at least one channel extending generally transversely of said belt, b. floor belt load supports underlying at least a portion of said belt, c. tracks extending generally longitudinally of and connected to each of the sidewalls, said tracks being generally parallel to said floor belt, d. a generally vertically extending pusher located between and generally transverse to the sidewalls, said pusher being slidably mounted on said tracks and bEing spaced from said channel and connected to said belt, and e. at least one batch board slidably carried by said tracks between and generally transverse to the walls, said batch board extending generally vertically and being engageable with said channel.
Claim 8
Dependent Claim
50 words
The unloading device for a vehicle body as defined in claim 5 which also comprises a tailgate generally transverse to and between the walls, said tailgate being carried by said tracks for movement from a position adjacent to a portion of said belt to a position distal from said portion.
Claim 9
Dependent Claim
27 words
The unloading device for a vehicle body as defined in claim 5 in which said floor belt load supports comprise rollers extending generally transversely of said belt.
Claim 10
Dependent Claim
71 words
The unloading device for a vehicle body as defined in claim 6 in which said pusher, batch boards and tailgate are interconnected by a flexible means so that they can be maintained in spaced apart relationship when said pusher is moved longitudinally in one direction and so said pusher can move toward said batch boards and said tailgate when said pusher is moved in a direction opposite to said one direction.
Claim 11
Dependent Claim
47 words
The unloading device for a vehicle body as defined in claim 5 which also comprises cables connected to said pusher above said belt and connected to said belt so that when said cables are foreshortened said pusher and said belt are moved generally longitudinally in the body.
Claim 12
Dependent Claim
117 words
The unloading device for a vehicle body as defined in claim 6 which also comprises first cables connected to said pusher in generally vertically spaced apart relationship and extending generally longitudinally in one direction from said pusher and connected to said belt, and a second cable connected to said pusher and extending from said pusher in a direction opposite to said one direction so that when said first cables are foreshortened and said second cable is lengthened said pusher moves generally longitudinally in one direction and when said first cables are lengthened and said second cable is foreshortened said pusher and said belt move generally longitudinally in a direction generally opposite to said one direction of movement.
Claim 13
Dependent Claim
51 words
The unloading device for a vehicle body as defined in claim 10 in which said pusher, batch boards and tailgate are interconnected by flexible connectors so that said pusher, batch boards and tailgate will be positioned in spaced apart relationship to each other when said pusher is moved in one direction.
Claim 14
Dependent Claim
46 words
The unloading device for a vehicle body as defined in claim 5 which also comprises seals between the body and said belt adjacent the sidewalls of the body so that material placed in the body cannot pass adjacent the sidewalls between the body and said belt.
Claim 15
Dependent Claim
46 words
The unloading device for a vehicle body as defined in claim 10 which also comprises seals between the body and said belt adjacent the sidewalls of the body so that material placed in the body cannot pass adjacent the sidewalls between the body and said belt.
Claim 16
Dependent Claim
35 words
The unloading device for a vehicle body as defined in claim 7 in which said floor belt load supports also comprise support plates underlying said belt and generally parallel to and interleaved between said rollers.
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) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |