Patent US2399777A successfully refreshed from Google Patents.
US3679343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion mill with roller adjustment means
Assignee: California Pellet Mill Co
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Filing: 1970-05-04
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Granted: 1972-07-25
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Expires: 1990-05-04
Abstract
Abstract An apparatus for adjusting rollers of an extrusion mill comprising an adjustable link extending between a drive post in the roller assembly and a radial extension arm secured to the roller journal shaft which has a journal center eccentric of its roll center.
Inventors
- 👤 Robert W Gilman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:03
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/20; B30B11/201; B30B11/208
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
158 words
In an extrusion mill having a frame supporting an annular die, a main drive shaft supported for rotation by said frame concentric to said die, a roller assembly supported by said main drive shaft including at least one fixed main shaft drive post secured to said shaft, at least one roller journal shaft journalled in said drive shaft parallel said main shaft drive post, and an extRusion roller journalled on said roller shaft, an improved extrusion roller adjustment means comprising an eccentric relation between the journal center and the roll center of said roller journal shaft, a radial extension arm secured to said roller shaft, and turnbuckle means extending between said main shaft drive post and said extension arm whereby as the length of said turnbuckle is changed said roller shaft is rotated within its journal in said drive shaft to vary the position of the roll center of said roller journal shaft with respect to said die.
Claim 2
Dependent Claim
158 words
In an extrusion mill having a frame supporting an annular die, a main drive shaft supported for rotation by said frame concentric to said die, a roller assembly supported by said main drive shaft including at least one fixed main shaft drive post secured to said shaft, at least one roller journal shaft journalled in said drive shaft parallel said main shaft drive post, and an extRusion roller journalled on said roller shaft, an improved extrusion roller adjustment means comprising an eccentric relation between the journal center and the roll center of said roller journal shaft, a radial extension arm secured to said roller shaft, and turnbuckle means extending between said main shaft drive post and said extension arm whereby as the length of said turnbuckle is changed said roller shaft is rotated within its journal in said drive shaft to vary the position of the roll center of said roller journal shaft with respect to said die.
Claim 3
Dependent Claim
20 words
The extrusion mill of claim 1 wherein a roller adjustment means is provided for each roller in said roller assembly.
Claim 4
Dependent Claim
49 words
The extrusion mill of claim 1 wherein said radial extension arm is secured to said journal shaft by splines and the adjustment length of said turnbuckle means is at least equal to the angular rotation of shifting said radial extension arm on said roller shaft one set of splines.
Claim 5
Dependent Claim
188 words
In an extrusion mill having a frame supporting an annular die, a main drive shaft supported for rotation by said frame concentric to said die, a roller assembly supported by said main drive shaft including at least one fixed main shaft drive post secured to said shaft, at least one roller journal shaft journalled in said drive shaft parallel said main shaft drive post, and an extrusion roller journalled on said roller shaft, an improved extrusion roller adjustment means comprising an eccentric relation between the journal center and the roll center of said roller journal shaft, a radial extension arm secured to said roller shaft by splines, and turnbuckle means extending between main shaft drive post and said extension arm whereby as the length of said turnbuckle means is changed said roller shaft is rotated within its journal in said drive shaft to vary the position of the roll center of said roller journal shaft with respect to said die, the adjustment length of said turnbuckle means being at least equal to the angular rotation of shifting said extension arm on said roller shaft one set of splines.
Claim 6
Dependent Claim
188 words
In an extrusion mill having a frame supporting an annular die, a main drive shaft supported for rotation by said frame concentric to said die, a roller assembly supported by said main drive shaft including at least one fixed main shaft drive post secured to said shaft, at least one roller journal shaft journalled in said drive shaft parallel said main shaft drive post, and an extrusion roller journalled on said roller shaft, an improved extrusion roller adjustment means comprising an eccentric relation between the journal center and the roll center of said roller journal shaft, a radial extension arm secured to said roller shaft by splines, and turnbuckle means extending between main shaft drive post and said extension arm whereby as the length of said turnbuckle means is changed said roller shaft is rotated within its journal in said drive shaft to vary the position of the roll center of said roller journal shaft with respect to said die, the adjustment length of said turnbuckle means being at least equal to the angular rotation of shifting said extension arm on said roller shaft one set of splines.
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) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |