US4253612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spreader for cinders and the like
Assignee: Individual
•
Filing: 1979-08-24
•
Granted: 1981-03-03
•
Expires: 1999-08-24
Abstract
Abstract Apparatus for spreading granular material such as salt, cinders and the like in which the conveyor is an assembly insertable into the hopper and the drive for the conveyor and spreader are mounted on the assembly. The conveyor assembly rests on the bottom wall of the hopper. The discharge of material starts at the rear wall of the hopper. The result is a reduction in the weight, height and length and a lowering of the center of gravity of the apparatus.
Inventors
- 👤 Clayton E. Schulze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:05
CPC Classifications
A; A01; A01C; A01C17/00; E; E01; E01C; E01C19/00; E01C19/12; E01C19/20; E01C19/201; E01C19/202; E01C19/203
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
181 words
Apparatus for spreading granular materials, comprising a hopper adapted to be mounted on and extend longitudinally of a truck or trailer, said hopper having a substantially flat bottom wall, side walls diverging outward and upward from longitudinal edges of the bottom wall and end walls connected between said bottom wall and said side walls, one of said end walls having an opening registering with said bottom wall through which material may be removed, a conveyor housing with its inboard end insertable into the hopper through said opening and with its outboard end projecting outward from said opening, said housing having a bottom wall resting on the bottom wall of the hopper, a drag bar conveyor in said housing with bars extending between two chains, the bars of the lower reach of the conveyor riding on the bottom wall of the housing and moving toward and through said opening, means for protecting the conveyor from the overlying weight of material, a distributor for the material, and a chute leading from the housing adjacent the bottom wall of said hopper to said distributor.
Claim 2
Dependent Claim
181 words
Apparatus for spreading granular materials, comprising a hopper adapted to be mounted on and extend longitudinally of a truck or trailer, said hopper having a substantially flat bottom wall, side walls diverging outward and upward from longitudinal edges of the bottom wall and end walls connected between said bottom wall and said side walls, one of said end walls having an opening registering with said bottom wall through which material may be removed, a conveyor housing with its inboard end insertable into the hopper through said opening and with its outboard end projecting outward from said opening, said housing having a bottom wall resting on the bottom wall of the hopper, a drag bar conveyor in said housing with bars extending between two chains, the bars of the lower reach of the conveyor riding on the bottom wall of the housing and moving toward and through said opening, means for protecting the conveyor from the overlying weight of material, a distributor for the material, and a chute leading from the housing adjacent the bottom wall of said hopper to said distributor.
Claim 3
Dependent Claim
19 words
The structure of claim 1 having a motor on the outboard end of the housing for driving the conveyor.
Claim 4
Dependent Claim
19 words
The structure of claim 1 having brackets fastened to said one end wall for holding the housing in place.
Claim 5
Dependent Claim
20 words
The structure of claim 1 in which the means for protecting the conveyor comprises a top wall of said housing.
Claim 6
Dependent Claim
21 words
The structure of claim 1 in which the housing has side walls with openings for flow of material into the housing.
Claim 7
Dependent Claim
20 words
The structure of claim 1 having a motor supported on the outboard end of the housing for driving the distributor.
Claim 8
Dependent Claim
16 words
The structure of claim 1 having an outwardly diverging outlet from the conveyor to the chute.
Claim 9
Dependent Claim
25 words
The structure of claim 1 in which the bars of the lower reach pass over a discharge opening in the bottom wall of the housing.
Claim 10
Dependent Claim
27 words
The structure of claim 8 in which the opening is V shaped with the bars of the lower reach first passing over the apex of the V.
Claim 11
Dependent Claim
55 words
The structure of claim 1 in which the distributor has a disc with vanes on its upper surface and a hollow cone mounted on said vanes and having an open top receiving material from said chute, said cone diverging outward toward said disc and holding material on said disc when the disc is not rotating.
References Cited (Backward Citations)
US2779508A
Cited
US2791339A
Cited
US3329436A
Cited
US3322429A
Cited
US3441225A
Cited
US3559894A
Cited
US3768737A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-02 | 1984-09-01 | 1985-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-02 | 1988-09-01 | 1989-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-02 | 1992-09-01 | 1993-03-03 | $7700.00 | Window Closed / Lapsed |