Patent US3305183A successfully refreshed from Google Patents.
US3305183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for treating pulp material
Assignee: Voith Morden Inc
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Filing: 1964-06-15
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Granted: 1967-02-21
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Expires: 1984-06-15
Abstract
No abstract record available.
Inventors
- 👤 Morden Robert Burke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:44
CPC Classifications
B; B02; B02C; B02C2/00; B02C2/10; D; D21; D21D; D21D1/00; D21D1/20; D21D1/22; D21D1/24; D21D1/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
231 words
IN A MACHINE FOR TREATING PULP MATERIAL, A ROTOR MEMBER HAVING AN EXTERIOR ATTRITIONING SURFACE, A NONROTATING SHELL MEMBER CO-AXIAL WITH AND SURROUNDING SAID ROTOR MEMBER AND HAVING AN INTERIOR COOPERATING ATTRITIONING SURFACE, A PLURALITY OF ATTRITIONING BARS ON THE ATTRITIONING SURFACE OF ONE OF SAID MEMBERS, EACH OF SAID BARS EXTENDING IN A SINGLE PLANE, A PLURALITY OF ATTRITIONING BARS ON THE ATTRITIONING SURFACE OF THE OTHER OF SAID MEMBERS, EACH OF SAID LATTER MENTIONED BARS EXTENDING IN A SINGLE PLANE AND ARRANGED AT THE SAME RELATIVE ANGULARITY OF BETWEEN 18* AND 38* WITH SAID FIRST MENTIONED BARS AT CORRESPONDING CROSSING POINTS, WHEREBY EVERY BAR ON THE ATTRITIONING SURFACE OF ONE OF SAID MEMBERS WILL BE IN WORKING RELATIONSHIP WITH AND IN ANGULARITY WITH A PLURALITY OF COOPERATING BARS ON THE ATTRIONING SURFACE OF THE OTHER OF SAID MEMBERS AT ALL TIMES, THEREBY MINIMIZING THE NOISE AND VIBRATION PRODUCED BY THE OPERATION OF THE MACHINE, THE WORKING FACES OF SAID BARS ON SAID ATTRITIONING SURFACES EXTENDING IN A PAIR OF SURFACES HAVING A SLIGHT CLEARANCE THEREBETWEEN, THE SIDE FACES OF EACH OF SAID BARS ON ONE OF SAID ATTRITIONING SURFACES HAVING A DIFFERENT INCLINATION WITH RESPECT TO THE ADJACENT SURFACE ON THE LATTER MENTIONED ATTRITIONING SURFACE AT ONE END OF SAID LATTER MENTIONED SURFACE THAN WITH RESPECT TO THE ADJACENT SURFACE AT THE OPPOSITE END OF SAID LATTER MENTIONED SURFACE.
Claim 2
Dependent Claim
231 words
IN A MACHINE FOR TREATING PULP MATERIAL, A ROTOR MEMBER HAVING AN EXTERIOR ATTRITIONING SURFACE, A NONROTATING SHELL MEMBER CO-AXIAL WITH AND SURROUNDING SAID ROTOR MEMBER AND HAVING AN INTERIOR COOPERATING ATTRITIONING SURFACE, A PLURALITY OF ATTRITIONING BARS ON THE ATTRITIONING SURFACE OF ONE OF SAID MEMBERS, EACH OF SAID BARS EXTENDING IN A SINGLE PLANE, A PLURALITY OF ATTRITIONING BARS ON THE ATTRITIONING SURFACE OF THE OTHER OF SAID MEMBERS, EACH OF SAID LATTER MENTIONED BARS EXTENDING IN A SINGLE PLANE AND ARRANGED AT THE SAME RELATIVE ANGULARITY OF BETWEEN 18* AND 38* WITH SAID FIRST MENTIONED BARS AT CORRESPONDING CROSSING POINTS, WHEREBY EVERY BAR ON THE ATTRITIONING SURFACE OF ONE OF SAID MEMBERS WILL BE IN WORKING RELATIONSHIP WITH AND IN ANGULARITY WITH A PLURALITY OF COOPERATING BARS ON THE ATTRIONING SURFACE OF THE OTHER OF SAID MEMBERS AT ALL TIMES, THEREBY MINIMIZING THE NOISE AND VIBRATION PRODUCED BY THE OPERATION OF THE MACHINE, THE WORKING FACES OF SAID BARS ON SAID ATTRITIONING SURFACES EXTENDING IN A PAIR OF SURFACES HAVING A SLIGHT CLEARANCE THEREBETWEEN, THE SIDE FACES OF EACH OF SAID BARS ON ONE OF SAID ATTRITIONING SURFACES HAVING A DIFFERENT INCLINATION WITH RESPECT TO THE ADJACENT SURFACE ON THE LATTER MENTIONED ATTRITIONING SURFACE AT ONE END OF SAID LATTER MENTIONED SURFACE THAN WITH RESPECT TO THE ADJACENT SURFACE AT THE OPPOSITE END OF SAID LATTER MENTIONED SURFACE.
References Cited (Backward Citations)
US155627A
Cited
US2697966A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |