US3790090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Truck body
Assignee: Highway Equipment Co
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Filing: 1973-03-12
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Granted: 1974-02-05
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Expires: 1993-03-12
Abstract
Abstract A truck body of the hopper type including a bottom longitudinally extending conveyor and a rear end gate arranged for pivotal opening for dumping without tilting of the truck body and with a metering feed gate in the end gate for use in spreading. The body is further equipped with a spreader of the spinner type which receives material from the conveyor, the spreader being selectively pivotable to one side to facilitate dumping. The conveyor is equipped with a hydraulic power system providing the use of two motors in parallel for high torque and the same two motors in series for high speed.
Inventors
- 👤 A Lorenc
- 👤 J Blumer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:09
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/12; E01C19/20; E01C19/201; E01C19/202; E01C19/203; B; B60; B60B; B60B39/00; B60B39/02; B60B39/04; B60P; B60P1/00; B60P1/36; B60P1/38
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
187 words
A truck body adapted to spread and dump comprising a hopperlike body adapted to be mounted on a truck chassis for selfpropelled movement, said body in the bottom thereof having an endless conveyor extending in the fore and aft direction of the truck, means on said body for operating said conveyor, said body at its rear being equipped with an end gate pivoted to said body for swinging movement to permit discharge of relatively large quantities of material urged rearwardly by said conveyor, hook means on said body for maintaining said end gate in closed position, said end gate being equipped with a smaller metering feed gate in the central lower portion thereof disposed above said conveyor, means on said end gate for varying the position of said feed gate relative to said conveyor, a spreader mechanism mounted on said body and exterior thereto and equipped with spinner means aligned with said conveyor and positioned therebelow, and pivot means interconnecting said spread mechanism to said body and selectively disengageable to permit swinging of said spreader mechanism to one side incident to opening said end gate for dumping.
Claim 2
Dependent Claim
187 words
A truck body adapted to spread and dump comprising a hopperlike body adapted to be mounted on a truck chassis for selfpropelled movement, said body in the bottom thereof having an endless conveyor extending in the fore and aft direction of the truck, means on said body for operating said conveyor, said body at its rear being equipped with an end gate pivoted to said body for swinging movement to permit discharge of relatively large quantities of material urged rearwardly by said conveyor, hook means on said body for maintaining said end gate in closed position, said end gate being equipped with a smaller metering feed gate in the central lower portion thereof disposed above said conveyor, means on said end gate for varying the position of said feed gate relative to said conveyor, a spreader mechanism mounted on said body and exterior thereto and equipped with spinner means aligned with said conveyor and positioned therebelow, and pivot means interconnecting said spread mechanism to said body and selectively disengageable to permit swinging of said spreader mechanism to one side incident to opening said end gate for dumping.
Claim 3
Dependent Claim
33 words
The structure of claim 1 in which said conveyor operating means includes a drag cross shaft adjacent the body rear, and motor means on said body coupled to each end of said shaft.
Claim 4
Dependent Claim
31 words
The structure of claim 2 in which said conveyor operating means also includes a hydraulic fluid circuit including valve means for selectively coupling said motor means in either series or parallel.
Claim 5
Dependent Claim
63 words
The structure of claim 1 in which said body at the rear thereof is equipped with a pair of spaced apart substantially planar baffles extending parallel to said conveyor and positioned in the path of material discharged from said conveyor onto said spinner means, and means operably associated with said spreader mechanism for varying selectively the attitude of each of said internal baffles.
Claim 6
Dependent Claim
51 words
The structure of claim 1 in which said pivot means interconnecting said spreader mechanism to said body includes a set of pivots on each side of said spreader mechanism whereby upon detachment of all of the pivot means, the spreader mechanism is adapted to be disconnected and removed from said body.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |