US3554454A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shredder and separator unit
Assignee: Lukens General Industries Inc
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Filing: 1967-11-09
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Granted: 1971-01-12
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Expires: 1987-11-09
Abstract
Abstract A shredder and separator unit for refining, blending, classifying, and reducing composted refuse. The unit includes a cylindrical housing having circumferentially extending shredder bars and screens. A rotor revolves within the housing and is provided with a plurality of canted and straight swingably mounted hammers which pass close to the bars and screens. A downfeed inlet opens into the housing through the shredder bars and a discharge conduit extends tangentially from the upper portion of the housing. An arcuate discharge opening opens into the interior of the housing at the hammer tip circle defined by the endmost hammers.
Inventors
- 👤 William P Gruendler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:54
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/10; B02C13/13; B02C13/26; B02C13/282; B02C13/284
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A shredder and separator unit comprising a housing having shredder bars and a screen; an inlet opening into said housing; and outlet also opening into said housing in axially spaced relation from said inlet; a discharge opening which opens into the bottom of said housing adjacent said outlet; and a rotor journaled for rotation within said housing about a substantially horizontal axis and including hammers adapted to sweep past and in close proximity to said shredder bars; at least some of said hammers being canted so as to propel said material through said housing from said inlet toward said outlet and said discharge opening.
Claim 2
Dependent Claim
104 words
A shredder and separator unit comprising a housing having shredder bars and a screen; an inlet opening into said housing; and outlet also opening into said housing in axially spaced relation from said inlet; a discharge opening which opens into the bottom of said housing adjacent said outlet; and a rotor journaled for rotation within said housing about a substantially horizontal axis and including hammers adapted to sweep past and in close proximity to said shredder bars; at least some of said hammers being canted so as to propel said material through said housing from said inlet toward said outlet and said discharge opening.
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |