US3756509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Granulate spreader apparatus
Assignee: Individual
•
Filing: 1972-06-12
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Granted: 1973-09-04
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Expires: 1992-06-12
Abstract
Abstract Spreader apparatus for uniformly spreading granulate matter, e.g., sand or gravel, over a given extended surface. The apparatus includes a base support; a bulk hopper engaged to the base support for carrying a bulk supply of granulate matter to be distributed over said given surface; an elongated housing engaged to the bulk hopper and projecting laterally from the hopper above said given surface, the housing forming an elongated trough for receiving a supply of granulate matter; passage means about one end of said trough and extending intermediate the interior of the bulk hopper and said trough to permit granulate matter to flow from the bulk hopper to said trough; an elongated conveyor screw supported within the trough and extending end-to-end of said trough, the screw being rotatable within the trough about a common longitudinal axis, the screw including a plurality of laterally spaced tapered flights for conveying granulate matter received through the passage means to within said trough; an elongated rotational roller means supported by said elongated housing beneath said conveyor screw and above said given surface, the axis of rotation of the roller being parallel with said common longitudinal axis; control gate means engaged to the elongated housing and positioned intermediate the conveyor screw and the roller for controlling the rate of feed of particulate matter from said elongated trough to the surface of the elongated roller; and drive means for driving said conveyor screw rotationally about said common longitudinal axis and for driving said roller means rotationally about its axis.
Inventors
- 👤 R Hamnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:59
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/12; E01C19/20; E01C19/201; E01C19/202; E01C2019/2055; E01C2019/207; E01C2019/2085
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
204 words
Spreader apparatus for uniformly spreading a granulate matter over a surface comprising, in combination: a base support member; a bulk hopper for carrying a supply of granulate matter to be distributed over a given surface, the bulk hopper being engaged to the base support member; an elongated housing engaged to the bulk hopper and projecting laterally from the hopper and forming an elongated trough along a common longitudinal axis; first passage means extendng intermediate the interior of the bulk hopper and said trough to permit granulate matter to flow from the bulk hopper to said trough; conveyor means supported by said elongated housing and extending across the trough from said passage means for conveying granulate matter passed through said passage means to within said trough; an elongated rotational roller means supported by said elongated housing beneath said conveyor means and about said bottom side of said trough, the axis of rotation of the roller being parallel with said common longitudinal axis; drive means for driving said conveyor means and for driving said roller means rotationally about its axis; and control gate means intermediate the conveyor screw and the roller for controlling the rate of release of granulate matter from said trough and said roller.
Claim 2
Dependent Claim
204 words
Spreader apparatus for uniformly spreading a granulate matter over a surface comprising, in combination: a base support member; a bulk hopper for carrying a supply of granulate matter to be distributed over a given surface, the bulk hopper being engaged to the base support member; an elongated housing engaged to the bulk hopper and projecting laterally from the hopper and forming an elongated trough along a common longitudinal axis; first passage means extendng intermediate the interior of the bulk hopper and said trough to permit granulate matter to flow from the bulk hopper to said trough; conveyor means supported by said elongated housing and extending across the trough from said passage means for conveying granulate matter passed through said passage means to within said trough; an elongated rotational roller means supported by said elongated housing beneath said conveyor means and about said bottom side of said trough, the axis of rotation of the roller being parallel with said common longitudinal axis; drive means for driving said conveyor means and for driving said roller means rotationally about its axis; and control gate means intermediate the conveyor screw and the roller for controlling the rate of release of granulate matter from said trough and said roller.
Claim 3
Dependent Claim
27 words
The spreader apparatus of claim 1 in which the roller means is positioned with its axis of rotation in substantial vertical alignment with said common longitudinal axis.
Claim 4
Dependent Claim
26 words
The spreader apparatus of claim 2 in which said drive means is coupled to said roller means for driving said roller means in either rotational direction.
Claim 5
Dependent Claim
53 words
The spreader apparatus of claim 1 in which the conveyor means is in the form of a conveyor screw positioned within said trough and rotatable about an axis parallel with said common axis, the screw including a plurality of spaced flights for urging granulate matter from said passage means to within said trough.
Claim 6
Dependent Claim
28 words
The spreader apparatus of claim 3 in which the housing carries an opening about its bottom side for passage of particulate matter to the surface of the roller.
Claim 7
Dependent Claim
31 words
The spreader apparatus of claim 5 in which the control gate means includes adjustment means for controlling the degree of opening intermediate the surface of the roller and the gate means.
Claim 8
Dependent Claim
29 words
The spreader apparatus of claim 5 including an elongated deflection member within the housing to deflect granulate matter passing from the trough to one lateral side of said roller.
Claim 9
Dependent Claim
23 words
The speader apparatus of claim 7 in which the drive means includes means for rotating said roller bi-directionally about its axis of rotation.
Claim 10
Dependent Claim
51 words
The spreader apparatus of claim 8 further including a lag member supported by said housing intermediate the surface of the roller and the bottom opening of said housing for discouraging discharge of particulate matter from said trough, the lag member being positioned substantially parallel to and laterally from said control gates.
Claim 11
Dependent Claim
36 words
The spreader apparatus of claim 9 in which the control gates are releasable from the housing, the lag member is releasable from the housing and said lag member and control gates are interchangeable with one another.
Claim 12
Dependent Claim
24 words
The spreader apparatus of claim 1 in which the base support member includes a turntable with said elongated housing being pivotable with said turntable.
Claim 13
Dependent Claim
22 words
The spreader apparatus of claim 8 in which the drive means for the roller is in the form of a hydraulic motor.
Claim 14
Dependent Claim
29 words
The spreader apparatus of claim 1 further including a stop means within said trough for blocking passage of granulate matter from select sections of said trough towards said roller.
Claim 15
Dependent Claim
260 words
Spreader apparatus for spreading a mat of granulate matter over a surface, the apparatus comprising, in combination: a mobile mover for traveling adjacent to a surface over which a mat of granulate matter is to be spread; a base support member supported by said mover; a bulk hopper for carrying a bulk supply of said granulate matter, the bulk hopper being engaged to the base support member; an elongated housing engaged to the bulk hopper and projecting laterally from the hopper, the housing forming an elongated trough along a common longitudinal axis and adapted to project horizontally over said surface and elevated relative to said surface; first passsage means extending intermediate the interior of the bulk hopper and said trough to permit granulate matter to flow from the bulk hopper to said trough; conveyor means supported by the elongated housing and extending across the trough from said passage means for conveying granulate matter passed through said first passage means to within said trough; an elongated rotational roller means supported by said elongated housing beneath said conveyor means, the axis of rotation of the roller being parallel with said common longitudinal axis; second passage means intermediate said trough and said roller to permit granulate matter to flow from said trough to the surface of the roller; drive means for driving said conveyor means and for driving the roller means rotationally about its axis; and control gate means intermediate the conveyor screw and the roller for controlling the rate of release of granulate matter from said trough and roller toward said surface.
Claim 16
Dependent Claim
260 words
Spreader apparatus for spreading a mat of granulate matter over a surface, the apparatus comprising, in combination: a mobile mover for traveling adjacent to a surface over which a mat of granulate matter is to be spread; a base support member supported by said mover; a bulk hopper for carrying a bulk supply of said granulate matter, the bulk hopper being engaged to the base support member; an elongated housing engaged to the bulk hopper and projecting laterally from the hopper, the housing forming an elongated trough along a common longitudinal axis and adapted to project horizontally over said surface and elevated relative to said surface; first passsage means extending intermediate the interior of the bulk hopper and said trough to permit granulate matter to flow from the bulk hopper to said trough; conveyor means supported by the elongated housing and extending across the trough from said passage means for conveying granulate matter passed through said first passage means to within said trough; an elongated rotational roller means supported by said elongated housing beneath said conveyor means, the axis of rotation of the roller being parallel with said common longitudinal axis; second passage means intermediate said trough and said roller to permit granulate matter to flow from said trough to the surface of the roller; drive means for driving said conveyor means and for driving the roller means rotationally about its axis; and control gate means intermediate the conveyor screw and the roller for controlling the rate of release of granulate matter from said trough and roller toward said surface.
Claim 17
Dependent Claim
76 words
The spreader apparatus of claim 14 in which the conveyor means is in the form of a conveyor screw positioned within said trough and extending substantially the lateral length of said trough from said first passage means; and granulate level sensing means for sensing the level of granulate matter within said trough, said level sensing means being engaged to the conveyor screw drive means for controlling actuation of the conveyor means responsive to the sensed level.
Claim 18
Dependent Claim
77 words
The spreader apparatus of claim 15 in which the elongated roller is bi-diRectionally rotatable about its axis of rotation, and the drive means for driving the roller is adapted for driving the roller bi-directionally; the control gate means includes adjustable gates for controling the degree of opening of the second passage means; and granulated deflection means supported by said housing for deflecting granulate matter passing through said second passage means to one lateral side of the roller.
Claim 19
Dependent Claim
58 words
The spreader apparatus of claim 16 in which the control gate means establishes an opening intermediate the roller surface and the trough about one lateral side of the roller; and further including a lag member extending from the housing to the surface of the roller to block passage of granulate matter from the other lateral side of roller.
Claim 20
Dependent Claim
51 words
The spreader apparatus of claim 17 further including a stop plate member having a length less than the length of said trough, the stop plate member being positioned within said trough intermediate the conveyor screw and said second passage means to discourage flow of granulate matter through said second passage means.
Claim 21
Dependent Claim
28 words
The spreader apparatus of claim 14 in which the base member includes a turntable with said elongated housing being pivotable with the turntable relative to the mobile mover.
Claim 22
Dependent Claim
19 words
The spreader apparatus of claim 16 in which the drive means for the roller is a bidirectional hydraulic motor.
Claim 23
Dependent Claim
15 words
The spreader apparatus of claim 20 in which the roller includes a resilient surface coating.
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GB189912030A
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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) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |