Patent US3923101A successfully refreshed from Google Patents.
US3923101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pin cylinder litter collector
Assignee: Individual
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Filing: 1974-04-05
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Granted: 1975-12-02
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Expires: 1994-04-05
Abstract
Abstract A litter collecting device for picking up litter by wedging or piercing action. The devices comprises a frame, a first shaft rotatable in the frame and rods secured spacedly radially of said first shaft. A cylindrical brush is mounted on a second shaft, mounted in the frame behind the first shaft. Means operably connecting the first and second shaft are provided. The litter is discharged into a container removably attached to the frame.
Inventors
- 👤 Paul C Donohue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:45
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/10; E01H1/105; E01H1/106
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
183 words
A litter picker comprising, in combination, a frame, a first horizontal shaft mounted in said frame, a pair of ground engaging wheels secured to the ends of said first shaft for causing said first shaft to rotate, means secured about said shaft for attaching a plurality of rods, a plurality of spaces flexible rods attached to said securing means radially of said shaft and having rod ends extending beyond the periphery of said wheels, a second shaft rotatably mounted in said frame rearwardly of said first shaft, a cylindrical brush secured to said second shaft for cooperation with said rods, means operably connecting both said shafts for driving said second shaft upon rotation of said first shaft, a bin for litter secured to said frame rearwardly thereof, said means secured about said first shaft for attaching said rods comprising a plurality of adjacent sleeves of flexible material mounted on said first shaft in frictional engagement with said shaft and a concrete cylinder enclosing said first shaft and said sleeves, said rods extending through said concrete cylinder and said plurality of adjacent sleeves respectively.
Claim 2
Dependent Claim
183 words
A litter picker comprising, in combination, a frame, a first horizontal shaft mounted in said frame, a pair of ground engaging wheels secured to the ends of said first shaft for causing said first shaft to rotate, means secured about said shaft for attaching a plurality of rods, a plurality of spaces flexible rods attached to said securing means radially of said shaft and having rod ends extending beyond the periphery of said wheels, a second shaft rotatably mounted in said frame rearwardly of said first shaft, a cylindrical brush secured to said second shaft for cooperation with said rods, means operably connecting both said shafts for driving said second shaft upon rotation of said first shaft, a bin for litter secured to said frame rearwardly thereof, said means secured about said first shaft for attaching said rods comprising a plurality of adjacent sleeves of flexible material mounted on said first shaft in frictional engagement with said shaft and a concrete cylinder enclosing said first shaft and said sleeves, said rods extending through said concrete cylinder and said plurality of adjacent sleeves respectively.
Claim 3
Dependent Claim
28 words
A litter picker as claimed in claim 1, wherein the free ends of said rods terminate as sharp points for piercing and engaging paper, cardboard and like litter.
Claim 4
Dependent Claim
37 words
A litter picker as claimed in claim 2, wherein the free ends of said rods are provided with sleeves of resilient material for frictionally engaging litter therebetween, said sleeves being spaced a distance from said sharp points.
Claim 5
Dependent Claim
37 words
The litter picker as claimed in claim 1, wherein said means operably connecting both said shafts comprises a pair of aligned sprocket wheels mounted on said shafts and an endless link chain engageable with said sprocket wheels.
Claim 6
Dependent Claim
41 words
The litter picker as claimed in claim 1, wherein said bin has a forward portion detachably mounted on said frame and a cord detachably securing the rear of said bin to said frame, for maintaining said bin clear of the ground.
Claim 7
Dependent Claim
27 words
The litter picker as claimed in claim 1, said frame being provided with means for securing said litter picker to a propulsion vehicle for said litter picker.
Claim 8
Dependent Claim
18 words
The litter picker as claimed in claim 1, said frame being provided with a handle for manual propulsion.
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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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |