US4747551A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disintegrating rotor
Assignee: SPETSIALNOE KONSTRUKTORSKO-TEKHNOLOGICHESKOE BJURO "DEZINTEGRATOR"
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Filing: 1985-01-17
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Granted: 1988-05-31
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Expires: 2005-01-17
Abstract
Abstract A disintegrating rotor comprising disks (1) carrying beaters (2) having a hard-faced working surface (4) that is formed by inserts (5 and 6) made from different wear-resistance materials and fitted so that harder inserts are found near the center of the beater (2) and softer inserts, to the periphery.
Inventors
- 👤 Bella U. Shagarova
- 👤 Olev G. Reemet
- 👤 Evgenia E. Ostapenko
- 👤 Vladimir M. Matveev
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:06
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/26; B02C13/28; B02C13/2804; B02C13/20; B02C13/205
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
94 words
A disintegrating rotor having a center of rotation and a periphery comprising: disks mounted for rotation about a common axis and in opposing relation to each other; beaters concentrically positioned about said disks, each beater having a periphery and a hard-faced working surface; characterized in that each hard-faced working surface is formed by a plurality of materials having different wear-resistances, with said materials having a greater wear-resistance being positioned closer to the center of rotation of said rotor and said materials having a lesser wear-resistance being positioned closer to the periphery of the rotor.
Claim 2
Dependent Claim
94 words
A disintegrating rotor having a center of rotation and a periphery comprising: disks mounted for rotation about a common axis and in opposing relation to each other; beaters concentrically positioned about said disks, each beater having a periphery and a hard-faced working surface; characterized in that each hard-faced working surface is formed by a plurality of materials having different wear-resistances, with said materials having a greater wear-resistance being positioned closer to the center of rotation of said rotor and said materials having a lesser wear-resistance being positioned closer to the periphery of the rotor.
Claim 3
Dependent Claim
62 words
A disintegrating rotor as claimed in claim 1; characterized in that each hard-faced working surface is formed by a plurality of inserts made of different wear-resistance materials and closely fitted to one another so that inserts having a greater wear-resistance are positioned near the center of rotation of said rotor and inserts having a lesser wear-resistance are positioned near the rotor periphery.
Claim 4
Dependent Claim
19 words
A disintegrating rotor as claimed in claim 2; characterized in that at least one of the inserts is removable.
Claim 5
Dependent Claim
50 words
A disintegrating rotor as claimed in claim 2; wherein characterized in that the surface of the more resistant material of the hard-faced working surface of said beater nearest the center of rotation of the rotor is oriented in a direction close to that of a direction of inflow of material.
Claim 6
Dependent Claim
70 words
A disintegrating rotor as claimed in claim 1; characterized in that the hard-faced working surface is formed by a plurality of layers made from different wear-resistance materials and oriented in a direction close to that of a direction of material inflow so that layers having a greater wear-resistance are positioned near the center of rotation of the rotor and layers having a lesser wear-resistance are positioned near the rotor periphery.
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) | 1991-05-31 | 1991-11-30 | 1992-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-31 | 1995-11-30 | 1996-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-31 | 1999-11-30 | 2000-05-31 | $7700.00 | Window Closed / Lapsed |