US4420863A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cane crushing apparatus
Assignee: Polymex Pty Ltd
•
Filing: 1981-07-10
•
Granted: 1983-12-20
•
Expires: 2001-07-10
Abstract
Abstract A feed roller for a sugar crushing mill said roller having a central shaft from which radially extend a plurality of discs which are co-axially mounted on the shaft, a plurality of teeth formed on each disc, and a plurality of annular spacers co-axial with the shaft and holding the discs in a longitudinally spaced relationship.
Inventors
- 👤 Raymond W. Trimmer
- 👤 Morris B. McCullagh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:08
CPC Classifications
C; C13; C13B; C13B5/00; C13B5/04; C13B10/00; C13B10/02; C13B10/06
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
208 words
Apparatus for feeding sugar cane to a sugar cane crushing mill, said apparatus comprising a pair of opposed rotatable feeder rollers, on inlet chute to feed sugar cane between said feeder rollers and an outlet chute to direct sugar cane from said feeder rollers to the intake of the crushing mill, each of said feeder rollers having a central shaft, a plurality of disks coaxial with said shaft and extending radially therefrom, said disks being longitudinally spaced along each said shaft; said disks having outer radial peripheral surfaces which are provided with a plurality of spaced radially extending teeth of dimensions suitable to impel the sugar cane between said feeder rollers and through said outlet chute to the intake of said crushing mill, said pair of opposed feeder rollers being separated in the region of the nip thereof such that arcs described by the outer radial periphery of the teeth of one of said feeder rollers overlaps the arc described by the outer radial periphery of the teeth of the other of said feeder rollers, said opposed feeder rollers being mounted to rotate synchronously with the teeth of one of said opposed feeder rollers intermeshing between but without contacting the teeth of the other of said feeder rollers.
Claim 2
Dependent Claim
208 words
Apparatus for feeding sugar cane to a sugar cane crushing mill, said apparatus comprising a pair of opposed rotatable feeder rollers, on inlet chute to feed sugar cane between said feeder rollers and an outlet chute to direct sugar cane from said feeder rollers to the intake of the crushing mill, each of said feeder rollers having a central shaft, a plurality of disks coaxial with said shaft and extending radially therefrom, said disks being longitudinally spaced along each said shaft; said disks having outer radial peripheral surfaces which are provided with a plurality of spaced radially extending teeth of dimensions suitable to impel the sugar cane between said feeder rollers and through said outlet chute to the intake of said crushing mill, said pair of opposed feeder rollers being separated in the region of the nip thereof such that arcs described by the outer radial periphery of the teeth of one of said feeder rollers overlaps the arc described by the outer radial periphery of the teeth of the other of said feeder rollers, said opposed feeder rollers being mounted to rotate synchronously with the teeth of one of said opposed feeder rollers intermeshing between but without contacting the teeth of the other of said feeder rollers.
Claim 3
Dependent Claim
56 words
The apparatus as claimed in claim 1 wherein each said tooth has a leading face, a trailing face, and two substantially flat side faces, said leading face being curved away from the direction of roller rotation at that site and the separation between said leading face and said trailing face decreasing upwardly from the roller surface.
Claim 4
Dependent Claim
39 words
The apparatus as claimed in claim 1 wherein each feeder roller further includes a plurality of spacers with one spacer being located between each two adjacent disks and wherein the spacers are located radially outwardly of the respective shaft.
Claim 5
Dependent Claim
25 words
The apparatus as claimed in claim 3 wherein said spacers are generally annular in configuration and mounted so as to be coaxial with said shaft.
Claim 6
Dependent Claim
32 words
The apparatus as claimed in claim 4 wherein said shaft, disks and spacers are constructed from steel, with the disks being fitted to said shaft and the spacers welded to said disks.
Claim 7
Dependent Claim
45 words
The apparatus as claimed in claim 1 wherein the inlet chute and the outlet chute are shaped at their extremeties adjacent said feeder rollers so as to provide fingers extending between the teeth on said feeder rollers to remove debris adhering to said feeder rollers.
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) | 1986-12-19 | 1987-06-20 | 1987-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-19 | 1991-06-20 | 1991-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-19 | 1995-06-20 | 1995-12-20 | $7700.00 | Window Closed / Lapsed |