US3899138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spreading implements
Assignee: Individual
•
Filing: 1970-01-07
•
Granted: 1975-08-12
•
Expires: 1990-01-07
Abstract
Abstract A spreading implement including a hopper or container which can be divided into two portions, dimensioned to fit one inside the other for disassembly and convenient storage. The container can be made of collapsible material to occupy only a small space. One or more spreader discs is supported by the container so that a flexible transmission from a power takeoff shaft can be connected to rotate each disc in either direction. Adjusting connections are provided to properly couple the power takeoff to the disc or discs at chosen levels above the ground. A closing regulator is associated with each disc and also can be supported by the container to enable an operator to select both the direction and volume of material being spread. Also, a friction drive instead of a rope or chain transmission can be used to rotate the disc or discs.
Inventors
- 👤 Der Lely Ary Van
- 👤 Cornelis Johannes Gerardus Bom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:59
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: 7
Claim 1
Independent Claim
206 words
A spreading implement comprising a hopper with supporting frame parts and at least one rotatable spreading member mounted beneath an outlet in said hopper, said hopper having an upper part and a lower part detachably connected to each other, said upper part having coupling means with which the implement is connectable to an upper arm of a three-point lifting device of a tractor, said rotatable spreading member being mounted on a vertical shaft rotatably and entirely supported in said lower part with a dosing mechanism positioned between said hopper and said spreading member, at least two supporting members being detachably connected to said lower part to connect the implement to the lower arms of a three-point lifting device of a tractor, a transmission for driving said spreading member, said transmission including connecting means to connect the transmission to the power take-off of a tractor, and comprising flexible endless means connecting said spreading member to said connecting means and the power take-off, said connecting means comprising guide means for said flexible endless means and being supported by said hopper on frame members detachably connected to said lower part of said hopper whereby said hopper parts and said frame members can be separated and the implement conveniently stored.
Claim 2
Dependent Claim
206 words
A spreading implement comprising a hopper with supporting frame parts and at least one rotatable spreading member mounted beneath an outlet in said hopper, said hopper having an upper part and a lower part detachably connected to each other, said upper part having coupling means with which the implement is connectable to an upper arm of a three-point lifting device of a tractor, said rotatable spreading member being mounted on a vertical shaft rotatably and entirely supported in said lower part with a dosing mechanism positioned between said hopper and said spreading member, at least two supporting members being detachably connected to said lower part to connect the implement to the lower arms of a three-point lifting device of a tractor, a transmission for driving said spreading member, said transmission including connecting means to connect the transmission to the power take-off of a tractor, and comprising flexible endless means connecting said spreading member to said connecting means and the power take-off, said connecting means comprising guide means for said flexible endless means and being supported by said hopper on frame members detachably connected to said lower part of said hopper whereby said hopper parts and said frame members can be separated and the implement conveniently stored.
Claim 3
Dependent Claim
30 words
An implement as claimed in claim 1, wherein said guide means is movably mounted on said frame members and displaceable to various positions at different distances from said spreading member.
Claim 4
Dependent Claim
31 words
An implement as claimed in claim 1, wherein said transmission means includes a pulley with a surface placed in driven engagement with a frictional driving disc on the power takeoff shaft.
Claim 5
Dependent Claim
34 words
An implement as claimed in claim 3, wherein said pulley is resiliently mounted on one of said frame members to be urged into engagement with said frictional driving disc during operation of said implement.
Claim 6
Dependent Claim
50 words
An implement as claimed in claim 1, wherein one of said hopper parts is positionable substantially wholly inside the other part and said frame members are detachable from said hopper whereby the entire implement can be crated in a box having approximately the same dimensions as either of said portions.
Claim 7
Dependent Claim
48 words
An implement as claimed in claim 5, wherein the dimensions of said container parts and those of said box permit some of said frame parts to be accommodated inside said one part and the remaining frame parts to be arranged adjacent said other part and inside said box.
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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) | 1978-08-11 | 1979-02-10 | 1979-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-11 | 1983-02-10 | 1983-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-11 | 1987-02-10 | 1987-08-12 | $7700.00 | Window Closed / Lapsed |