US3850375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile shredder
Assignee: Individual
•
Filing: 1974-01-11
•
Granted: 1974-11-26
•
Expires: 1994-01-11
Abstract
Abstract A shredder mounted on a heavy-duty carrier for shredding refuse spread on the ground such as in a land-fill dump. The shredder includes a frame structure mounted to the heavy-duty carrier, a rotating drum having a plurality of shredding elements mounted thereon, a fixed set of teeth cooperating with the rotating drum and a breaker bar assembly fixed to the shredder frame to partially cover the projected frontal area of the drum. The breaker bar assembly reduces the size of large refuse particles entering the shredder and prevents excessively large bundles of material from being pulled into the shredder all at once. Further, the breaker bar, in combination with the frame, creates a vacuum scoop tending to draw smaller refuse particles into the shredder.
Inventors
- 👤 F Ford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:21
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/02; B02C13/06; B02C13/09; B02C13/095; B02C21/00; B02C21/02; B02C2021/023
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
121 words
A mobile shredder mounted to a heavy-duty carrier and comprising a support frame adjustably mounted to the heavy-duty carrier; a drum rotatably mounted to said support frame, the axis of said drum being substantially horizontal and said drum being exposed to the ground over which the carrier is directed; means for forcibly rotating said drum; a plurality of shredding elements mounted to said drum and extending outwardly therefrom; means fixed to said support frame cooperating with said shredding elements for shredding material introduced to said shredder; and a breaker bar assembly rigidly mounted to said support frame substantially parallel to the axis of said drum, said breaker bar assembly terminating at a line near the outermost path of said shredding elements.
Claim 2
Dependent Claim
121 words
A mobile shredder mounted to a heavy-duty carrier and comprising a support frame adjustably mounted to the heavy-duty carrier; a drum rotatably mounted to said support frame, the axis of said drum being substantially horizontal and said drum being exposed to the ground over which the carrier is directed; means for forcibly rotating said drum; a plurality of shredding elements mounted to said drum and extending outwardly therefrom; means fixed to said support frame cooperating with said shredding elements for shredding material introduced to said shredder; and a breaker bar assembly rigidly mounted to said support frame substantially parallel to the axis of said drum, said breaker bar assembly terminating at a line near the outermost path of said shredding elements.
Claim 3
Dependent Claim
27 words
The shredder of claim 1, wherein said breaker bar assembly terminates at a point approximately 1 inch from the extreme path of travel of said shredding elements.
Claim 4
Dependent Claim
18 words
The shredder of claim 1 wherein said breaker bar assembly partially covers the anterior projection of said drum.
Claim 5
Dependent Claim
37 words
The shredder of claim 3 wherein said support frame further includes side panels extending at either end of said drum to below said drum, said side panels and breaker bar assembly cooperating to form a vacuum scoop.
Claim 6
Dependent Claim
17 words
The shredder of claim 1 wherein said plurality of shredding elements are teeth fixed to said drum
Claim 7
Dependent Claim
27 words
The shredder of claim 1 wherein said breaker bar assembly includes a heavy steel plate forming the terminating line near the outermost path of said shredding elements.
Claim 8
Dependent Claim
154 words
A mobile shredder mounted on a heavy-duty carrier comprising a support frame adjustably mounted to the heavy-duty carrier and including side panels extending downwardly from said support frame; a drum rotatably mounted to said support frame, the axis of said drum being substantially horizontal and said drum being exposed to the ground over which the carrier is directed, said drum being positioned between said side panels; means for forcibly rotating said drum; a plurality of shredding elements mounted to said drum and extending outwardly therefrom; means fixed to said support frame cooperating with said shredding elements for shredding material introduced to said shredder; and a breaker bar assembly rigidly mounted to said support frame substantially parallel to the axis of said drum, said breaker bar assembly partially covering the anterior projection of said drum to provide in cooperation with said side panels a vacuum scoop for the attraction of light refuse into said shredder.
Claim 9
Dependent Claim
154 words
A mobile shredder mounted on a heavy-duty carrier comprising a support frame adjustably mounted to the heavy-duty carrier and including side panels extending downwardly from said support frame; a drum rotatably mounted to said support frame, the axis of said drum being substantially horizontal and said drum being exposed to the ground over which the carrier is directed, said drum being positioned between said side panels; means for forcibly rotating said drum; a plurality of shredding elements mounted to said drum and extending outwardly therefrom; means fixed to said support frame cooperating with said shredding elements for shredding material introduced to said shredder; and a breaker bar assembly rigidly mounted to said support frame substantially parallel to the axis of said drum, said breaker bar assembly partially covering the anterior projection of said drum to provide in cooperation with said side panels a vacuum scoop for the attraction of light refuse into said shredder.
Claim 10
Dependent Claim
27 words
The shredder of claim 7, wherein said breaker bar assembly terminates at a point approximately 1 inch from the extreme path of travel of said shredding elements.
Claim 11
Dependent Claim
17 words
The shredder of claim 7 wherein said plurality of shredding elements are teeth fixed to said drum.
Claim 12
Dependent Claim
27 words
The shredder of claim 7 wherein said breaker bar assembly includes a heavy-duty steel plate forming the terminating line near the outermost path of said shredding elements.
Claim 13
Dependent Claim
122 words
A mobile shredder comprising a heavy-duty carrier; a support frame adjustably mounted to said heavy-duty carrier; a drum rotatably mounted to said support frame, the axis of said drum being substantially horizontal and said drum being exposed to the ground over which said carrier is directed; means for forcibly rotating said drum; a plurality of shredding elements mounted to said drum and extending outwardly therefrom; means fixed to said support frame cooperating with said shredding elements for shredding material introduced to said shredder; and a breaker bar assembly rigidly mounted to said support frame substantially parallel to the axis of said drum, said breaker bar assembly partially covering the anterior projection of said drum to reduce the entrance area to said drum.
Claim 14
Dependent Claim
122 words
A mobile shredder comprising a heavy-duty carrier; a support frame adjustably mounted to said heavy-duty carrier; a drum rotatably mounted to said support frame, the axis of said drum being substantially horizontal and said drum being exposed to the ground over which said carrier is directed; means for forcibly rotating said drum; a plurality of shredding elements mounted to said drum and extending outwardly therefrom; means fixed to said support frame cooperating with said shredding elements for shredding material introduced to said shredder; and a breaker bar assembly rigidly mounted to said support frame substantially parallel to the axis of said drum, said breaker bar assembly partially covering the anterior projection of said drum to reduce the entrance area to said drum.
Claim 15
Dependent Claim
19 words
The shredder of claim 11 wherein said breaker bar assembly terminates near the outermost path of said shredding elements.
Claim 16
Dependent Claim
27 words
The shredder of claim 12 wherein said breaker bar assembly terminates at a point approximately one inch from the extreme path of travel of said shredding elements.
Claim 17
Dependent Claim
37 words
The shredder of claim 11 wherein said support frame further includes side panels extending at either end of said drum to below said drum, said side panels and breaker bar assembly cooperating to form a vacuum scoop.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |