Patent US3149793A successfully refreshed from Google Patents.
US3149793A
Expired / Lapsed
US
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Impeller shoe
Assignee: ADAMS ENGR CO
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Filing: 1962-07-30
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Granted: 1964-09-22
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Expires: 1982-07-30
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Bridgewater
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:47
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/14; B02C13/18; B02C13/1807; B02C13/1814; B02C13/1828; B02C13/26; B02C13/28; B02C13/2804
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A BLADE UNIT FOR AN IMPELLER OF AN IMPACT CRUSHER OF THE TYPE DESCRIBED COMPRISING A BODY MEMBER ADAPTED TO BE DETACHABLY SECURED IN A GENERALLY RADIATING POSITION ON THE IMPELLER, MEANS ON SAID BODY MEMBER DEFINING A POCKET FACING IN THE DIRECTION OF ROTATION OF THE IMPELLER FOR BEING AT LEAST PARTIALLY FILLED WITH MATERIAL TO BE CRUSHED FOR PROTECTING A PORTION OF THE BLADE UNIT FROM ABRASION, SAID MEANS INCLUDING AN INSERT DETACHABLY CONNECTED WITH SAID BODY MEMBER AND DEFINING A RADIALLY OUTER END OF SAID POCKET, ADDITIONAL INSERTS RESPECTIVELY DEFINING UPPER AND LOWER SIDES AND AN INNER END OF SAID POCKET, AND SAID INSERTS INCLUDING MEANS MECHANICALLY INTERLOCKED WITH EACH OTHER AND WITH SAID BODY MEMBER.
Claim 2
Dependent Claim
119 words
A BLADE UNIT FOR AN IMPELLER OF AN IMPACT CRUSHER OF THE TYPE DESCRIBED COMPRISING A BODY MEMBER ADAPTED TO BE DETACHABLY SECURED IN A GENERALLY RADIATING POSITION ON THE IMPELLER, MEANS ON SAID BODY MEMBER DEFINING A POCKET FACING IN THE DIRECTION OF ROTATION OF THE IMPELLER FOR BEING AT LEAST PARTIALLY FILLED WITH MATERIAL TO BE CRUSHED FOR PROTECTING A PORTION OF THE BLADE UNIT FROM ABRASION, SAID MEANS INCLUDING AN INSERT DETACHABLY CONNECTED WITH SAID BODY MEMBER AND DEFINING A RADIALLY OUTER END OF SAID POCKET, ADDITIONAL INSERTS RESPECTIVELY DEFINING UPPER AND LOWER SIDES AND AN INNER END OF SAID POCKET, AND SAID INSERTS INCLUDING MEANS MECHANICALLY INTERLOCKED WITH EACH OTHER AND WITH SAID BODY MEMBER.
References Cited (Backward Citations)
US2752098A
Cited
US2992783A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |