Patent US3170645A successfully refreshed from Google Patents.
US3170645A
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US
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Crusher apparatus
Assignee: Lukens General Industries Inc
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Filing: 1961-12-26
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Granted: 1965-02-23
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Expires: 1981-12-26
Abstract
No abstract record available.
Inventors
- 👤 George W Behnke
- 👤 Russell G Westcott
- 👤 Hans A Wirth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:06
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/14; B02C13/18; B02C13/1807; B02C13/1835; B02C13/1842; B02C2013/1878
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A CENTRIFUGAL CRUSHER COMPRISING: A BOWL; AN IMPELLER ROTATABLY MOUNTED IN SAID BOWL AND COMPRISING VERTICALLY SPACED APART UPPER AND LOWER MEMBERS; MEANS FOR DRIVING SAID IMPELLER IN A DIRECTION OF ROTATION; CIRCUMFERENTIALLY SPACED BUCKETS OPENING IN THE DIRECTION OF ROTATION OF SAID IMPELLER INTERPOSED BETWEEN SAID MEMBERS; EACH BUCKET COMPRISING GENERALLY ANGULARLY DISPOSED PORTIONS, THE UPPER AND LOWER EDGES OF WHICH ARE SECURED TO SAID MEMBERS; REPLACEABLE WEAR PINS MOUNTED BETWEEN SAID UPPER AND LOWER MEMBERS ADJACENT THE END EDGES OF SAID BUCKETS; MEANS FEEDING THE MATERIAL TO BE PROCESSED TO SAID IMPELLER; AND SUBDIVIDING MEANS IN SAID BOWL AROUND SAID IMPELLER AND AGAINST WHICH THE MATERIAL BEING PROCESSED FLUNG.
Claim 2
Dependent Claim
111 words
A CENTRIFUGAL CRUSHER COMPRISING: A BOWL; AN IMPELLER ROTATABLY MOUNTED IN SAID BOWL AND COMPRISING VERTICALLY SPACED APART UPPER AND LOWER MEMBERS; MEANS FOR DRIVING SAID IMPELLER IN A DIRECTION OF ROTATION; CIRCUMFERENTIALLY SPACED BUCKETS OPENING IN THE DIRECTION OF ROTATION OF SAID IMPELLER INTERPOSED BETWEEN SAID MEMBERS; EACH BUCKET COMPRISING GENERALLY ANGULARLY DISPOSED PORTIONS, THE UPPER AND LOWER EDGES OF WHICH ARE SECURED TO SAID MEMBERS; REPLACEABLE WEAR PINS MOUNTED BETWEEN SAID UPPER AND LOWER MEMBERS ADJACENT THE END EDGES OF SAID BUCKETS; MEANS FEEDING THE MATERIAL TO BE PROCESSED TO SAID IMPELLER; AND SUBDIVIDING MEANS IN SAID BOWL AROUND SAID IMPELLER AND AGAINST WHICH THE MATERIAL BEING PROCESSED FLUNG.
References Cited (Backward Citations)
US1724895A
Cited
US2637502A
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US2992783A
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US2992784A
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US3000579A
Cited
US3044720A
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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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |