US3146959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impact hammer mill
Assignee: Fuller Co
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Filing: 1962-08-23
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Granted: 1964-09-01
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Expires: 1982-08-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles P Putnam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:12
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/02; B02C13/06; B02C13/09
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
120 words
IN AN IMPACT BREAKER: ROTATABLE HAMMER MEANS MOUNTED FOR ROTATION ABOUT A GENERALLY HORIZONTAL AXIS; MEANS FOR DIRECTING MATERIAL TO BE BROKEN ALONG A LINE OF FEED INTO THE PATH OF THE PERIPHERY OF SAID HAMMER MEANS AT A PREDETERMINED IMPACT ZONE; A FIRST GRATE LOCATED ON THE OPPOSITE SIDE OF SAID HAMMER MEANS FROM SAID DIRECTING MEANS AND FACING SAID HAMMER MEANS, THE TOP OF SAID FIRST GRATE BEING LOCATED BELOW THE NORMAL TRAJECTORY OF THE MAJORITY OF MATERIAL WHICH IS STRUCK BY THE PERIPHERY OF SAID HAMMER MEANS AT SAID IMPACT ZONE; MEANS DEFINING A BREAKING SURFACE ABOVE SAID FIRST GRATE AND SUBSTANTIALLY DIRECTLY ABOVE AND FACING SAID HAMMER MEANS WHEREBY INCOMING MATERIAL IS THROWN BY SAID HAMMER
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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |