US5060875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Granulator knife
Assignee: NELNOR Co Inc
•
Filing: 1990-06-04
•
Granted: 1991-10-29
•
Expires: 2010-06-04
Abstract
Abstract A granulator knife having opposed reversible cutting edges. The knife is seated in a rotor or a bed and secured by a clamp. When the first knife edge is worn, the knife may be reversed. Adjustment of the knife position is not necessary.
Inventors
- 👤 Thomas D. McBride
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:35
CPC Classifications
B; B02; B02C; B02C18/00; B02C18/06; B02C18/16; B02C18/18; B02C18/186; B29; B29B; B29B9/00; B29B9/02; B29B9/06; B02C23/00; B02C23/08; B02C23/16; B02C2023/165
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
100 words
In a granulator having rotary knives and bed knives and a rotor to carry the rotor knives, the improvement which comprises: the rotor having a mounting surface with a knife seat including a rectangular-shaped recess, the seat having only two fixed locator pins for accurately positioning a rotary knife; each rotary knife being a reversible, non-adjustable trapezoidal knife having only two holes and precisely positioned on said surface by said locator pins; and a clamping bar secured to the mounting surface to hold each rotary knife in its position to form a clamping assembly consisting of a rotor seat-knife-clamping bar.
Claim 2
Dependent Claim
100 words
In a granulator having rotary knives and bed knives and a rotor to carry the rotor knives, the improvement which comprises: the rotor having a mounting surface with a knife seat including a rectangular-shaped recess, the seat having only two fixed locator pins for accurately positioning a rotary knife; each rotary knife being a reversible, non-adjustable trapezoidal knife having only two holes and precisely positioned on said surface by said locator pins; and a clamping bar secured to the mounting surface to hold each rotary knife in its position to form a clamping assembly consisting of a rotor seat-knife-clamping bar.
Claim 3
Dependent Claim
43 words
The granulator of claim 1 wherein the mounting surface includes a plurality of tapped holes; the clamping bar includes a plurality of holes in registration with the tapped holes; and a plurality of threaded fasteners secures the clamping bar to the mounting surface.
Claim 4
Dependent Claim
20 words
The granulator of claim 1 wherein one of said pins is circular and the other of said pins is diamond-shaped.
References Cited (Backward Citations)
US3854511A
Cited
US3876158A
Cited
DE2736612A1
Cited
US4784337A
Cited
US4887772A
Cited
US4969605A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-10-28 | 1995-04-29 | 1995-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-10-28 | 1999-04-29 | 1999-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-10-28 | 2003-04-29 | 2003-10-29 | $7700.00 | Window Closed / Lapsed |