Patent US3907216A successfully refreshed from Google Patents.
US3907216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disintegration apparatus
Assignee: MacKissic Inc
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Filing: 1973-03-26
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Granted: 1975-09-23
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Expires: 1993-03-26
Abstract
Abstract Disintegration apparatus comprising a housing which provides two chambers disposed side-by-side. In one chamber a chipping assembly receives larger pieces and reduces the same to chips which are fed into the adjoining chamber. In the adjoining chamber, a shredding assembly disintegrates the chips fed from the chipper along with any additional material which is fed directly into the chamber to a predetermined size. A feed chute is provided for feeding the larger pieces into the chipping chamber and a separate feed hopper is provided for feeding smaller pieces directly into the shredding chamber. A chipping assembly includes a rotary chipping disc having a radial slot which mounts a chipping knife. The material is confined in the chipping chamber by a peripheral wall which closely surrounds the disc. The shredding assembly comprises a plurality of rotary plates having pivotally mounted knives which swing freely through the material in the chamber as the plates are rotated. The size of the discharged material is determined by a screen which extends about a predetermined arc and an arcuate casing which continues around the plates, leaving a small opening through which the hopper may feed material into the chamber. A common sidewall separates the two chambers and the material from the chipping chamber is fed into the shredding chamber through a feed aperture in the sidewall.
Inventors
- 👤 Albert E Mackissic
- 👤 Robert C Kolb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:50
CPC Classifications
B; B02; B02C; B02C21/00; B02C21/02; B02C18/00; B02C18/06; B02C18/14; B02C18/16; B02C18/22; B02C18/2225; B02C18/2291; B02C2201/00; B02C2201/06; B02C2201/066
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
401 words
Apparatus for disintegrating materials comprising a housing, a rotary drive shaft extending through said housing, means to rotate said shaft in a clockwise direction, said housing including a pair of sidewalls and a cover plate disposed parallel to one another and substantially perpendicular to said rotary shaft, arcuate wall means intermediate said sidewalls to define a shredding chamber surrounding said shaft, said arcuate wall means being discontinuous providing openings for radial infeed of raw material into said chamber and radial discharge of shredded material out of said chamber and including an imperforate wall extending from approximately the 1:00 o''clock position past the 6:00 o''clock position, said housing including a circumferential wall surrounding said shaft intermediate one of said sidewalls and the cover plate to define a chipping chamber, said one sidewall being stationary and having an opening receiving said rotary shaft, said stationary wall extending radially from said shaft outwardly beyond said arcuate wall and said circumferential wall, said one sidewall constituting a common sidewall separating said shredding chamber and said chipping chamber, said cover plate having a feed opening therein positioned radially outward of said shaft and confronting said stationary wall for introducing material to be chipped into said chipping chamber, and said stationary sidewall having a discharge opening positioned radially outward of said shaft at a position corresponding to 1:00 o''clock for discharging chipped material from said chipping chamber into said shredding chamber, a shredding assembly in said shredding chamber to shred the material introduced thereinto and to discharge the shredded material radially through said discharge openings, a chipping assembly in said chipping chamber for chipping material introduced through said feed opening in the cover plate and for discharging the chipped material through said discharge opening in said one sidewall, said chipping assembly comprising a disc mounted for rotation with said drive shaft between said stationary wall and said cover plate and having a slot therein defining a chipping throat radially outward of said shaft, means providing a cutting edge adjacent said throat and operable to travel past said feed opening in the cover plate to chip said materiaL and deflect the chipped material through said throat against said stationary wall, and means between said disc and said wall to wipe said chipped material circumferentially of the shaft along the wall between the rotary disc and the stationary wall and to direct the chipped material through said discharge opening.
Claim 2
Dependent Claim
401 words
Apparatus for disintegrating materials comprising a housing, a rotary drive shaft extending through said housing, means to rotate said shaft in a clockwise direction, said housing including a pair of sidewalls and a cover plate disposed parallel to one another and substantially perpendicular to said rotary shaft, arcuate wall means intermediate said sidewalls to define a shredding chamber surrounding said shaft, said arcuate wall means being discontinuous providing openings for radial infeed of raw material into said chamber and radial discharge of shredded material out of said chamber and including an imperforate wall extending from approximately the 1:00 o''clock position past the 6:00 o''clock position, said housing including a circumferential wall surrounding said shaft intermediate one of said sidewalls and the cover plate to define a chipping chamber, said one sidewall being stationary and having an opening receiving said rotary shaft, said stationary wall extending radially from said shaft outwardly beyond said arcuate wall and said circumferential wall, said one sidewall constituting a common sidewall separating said shredding chamber and said chipping chamber, said cover plate having a feed opening therein positioned radially outward of said shaft and confronting said stationary wall for introducing material to be chipped into said chipping chamber, and said stationary sidewall having a discharge opening positioned radially outward of said shaft at a position corresponding to 1:00 o''clock for discharging chipped material from said chipping chamber into said shredding chamber, a shredding assembly in said shredding chamber to shred the material introduced thereinto and to discharge the shredded material radially through said discharge openings, a chipping assembly in said chipping chamber for chipping material introduced through said feed opening in the cover plate and for discharging the chipped material through said discharge opening in said one sidewall, said chipping assembly comprising a disc mounted for rotation with said drive shaft between said stationary wall and said cover plate and having a slot therein defining a chipping throat radially outward of said shaft, means providing a cutting edge adjacent said throat and operable to travel past said feed opening in the cover plate to chip said materiaL and deflect the chipped material through said throat against said stationary wall, and means between said disc and said wall to wipe said chipped material circumferentially of the shaft along the wall between the rotary disc and the stationary wall and to direct the chipped material through said discharge opening.
Claim 3
Dependent Claim
37 words
Disintegrating apparatus according to claim 1 including a chassis for mounting said housing with said rotary drive shaft substantially horizontal, said discharge opening in the common sidewall being positioned above the level of said rotary drive shaft.
Claim 4
Dependent Claim
26 words
Disintegrating apparatus according to claim 2 including wheels and a drive motor on said chassis and drive connection from said motor to said rotary drive shaft.
Claim 5
Dependent Claim
35 words
Apparatus according to claim 2 including a mounting bracket surrounding said feed opening in the cover plate, and a feed chute extending angularly upward from said cover plate and releasably mounted on said mounting bracket.
Claim 6
Dependent Claim
63 words
Disintegrating apparatus according to claim 1 wherein said feed opening in the cover plate is provided with an anvil element projecting from said opening into close proximity to said disc and adapted to register with said cutting edge so as to provide a limited clearance between said cutting edge and said anvil when said disc rotates the cutting edge past the feed opening.
Claim 7
Dependent Claim
41 words
Disintegrating apparatus according to claim 1 including flanges on the opposite face of said disc extending outwardly therefrom toward said common sidewall whereby upon rotation of said disc said flanges sweep material along said common sidewall into said discharge opening therein.
Claim 8
Dependent Claim
67 words
Apparatus according to claim 1 wherein said shredding assembly comprises a series of square carrier plates mounted on said rotary drive shaft for rotation therewith, and a series of flail knives at each corner of said plates in relatively-spaced relation therebetween, said flail knives being mounted for free swinging movement into close proximity to said arcuate walls means as said plates are rotated by said drive shaft.
Claim 9
Dependent Claim
43 words
Apparatus according to claim 1 wherein said arcuate wall means includes a screen having a plurality of openings of a predetermined size to constitute the radial discharge openings for said shredding chamber, and releasable fastening means for mounting said screen intermediate said sidewalls.
Claim 10
Dependent Claim
383 words
Apparatus for disintegrating materials comprising a housing, a rotary drive shaft extending through said housing, said housing including a pair of sidewalls and a cover plate disposed parallel to one another and substantially perpendicular to said rotary shaft, arcuate wall means intermediate said sidewalls to define a shredding chamber surrounding said shaft, said arcuate wall means being discontinuous, providing openings for radial infeed of raw material into said chamber and radial discharge of shredded material out of said chamber, said housing including a circumferential wall surrounding said shaft intermediate one of said sidewalls and the cover plate to define a chipping chamber, said one sidewall being stationary and having an opening receiving said rotary shaft, said stationary wall extending radially from said shaft outwardly beyond said arcuate wall and said circumferential wall, said one sidewall constituting a common sidewall separating said shredding chamber and said chipping chamber, said cover plate having a feed opening therein positioned radially outward of said shaft and confronting said stationary wall for introducing material to be chipped into said chipping chamber, and said stationary sidewall having a discharge opening positioned radially outward of said shaft for discharging chipped material from said chipping chamber into said shredding chamber, a shredding assembly in said shredding chamber to shred the material introduced thereinto and to discharge the shredded material radially through said discharge openings, a chipping assembly in said chipping chamber for chipping material introduced tHrough said feed opening in the cover plate and for discharging the chipped material through said discharge opening in said one sidewall, said chipping assembly comprising a disc mounted for rotation with said drive shaft between said stationary wall and said cover plate and having a flat circular face interrupted by a single radial slot, said slot defining a chipping throat, means providing a cutting edge adjacent said throat and operable to travel past said feed opening in the cover plate once for each revolution of the disc, to chip the foremost portion of said material and deflect the chipped material through said throat against said stationary wall, and means between said disc and said wall to wipe said chipped material circumferentially of the shaft along the wall between the rotary disc and the stationary wall and to direct the chipped material through said discharge opening.
Claim 11
Dependent Claim
383 words
Apparatus for disintegrating materials comprising a housing, a rotary drive shaft extending through said housing, said housing including a pair of sidewalls and a cover plate disposed parallel to one another and substantially perpendicular to said rotary shaft, arcuate wall means intermediate said sidewalls to define a shredding chamber surrounding said shaft, said arcuate wall means being discontinuous, providing openings for radial infeed of raw material into said chamber and radial discharge of shredded material out of said chamber, said housing including a circumferential wall surrounding said shaft intermediate one of said sidewalls and the cover plate to define a chipping chamber, said one sidewall being stationary and having an opening receiving said rotary shaft, said stationary wall extending radially from said shaft outwardly beyond said arcuate wall and said circumferential wall, said one sidewall constituting a common sidewall separating said shredding chamber and said chipping chamber, said cover plate having a feed opening therein positioned radially outward of said shaft and confronting said stationary wall for introducing material to be chipped into said chipping chamber, and said stationary sidewall having a discharge opening positioned radially outward of said shaft for discharging chipped material from said chipping chamber into said shredding chamber, a shredding assembly in said shredding chamber to shred the material introduced thereinto and to discharge the shredded material radially through said discharge openings, a chipping assembly in said chipping chamber for chipping material introduced tHrough said feed opening in the cover plate and for discharging the chipped material through said discharge opening in said one sidewall, said chipping assembly comprising a disc mounted for rotation with said drive shaft between said stationary wall and said cover plate and having a flat circular face interrupted by a single radial slot, said slot defining a chipping throat, means providing a cutting edge adjacent said throat and operable to travel past said feed opening in the cover plate once for each revolution of the disc, to chip the foremost portion of said material and deflect the chipped material through said throat against said stationary wall, and means between said disc and said wall to wipe said chipped material circumferentially of the shaft along the wall between the rotary disc and the stationary wall and to direct the chipped material through said discharge opening.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |