US3866843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overhung disk chipper
Assignee: Nicholson Manufacturing Co
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Filing: 1973-08-27
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Granted: 1975-02-18
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Expires: 1993-08-27
Abstract
Abstract An overhung chipper disk is mounted on one cantilever end of a stub shaft, and a drive pulley is mounted on the other end of such shaft. The disk-supporting end of the shaft extends through one side of a chip-receiving housing enclosing the chipping disk from which chips are discharged through a bottom discharge opening or are blown out of the upper portion of the housing by a centrifugal blower, the impeller of which is mounted on the chipping disk. An infeed spout is connected to the upright side of the housing through which the chipping disk extends, either above the shaft, alongside the downwardly turning side of the shaft or below the shaft, at an outer angle of 37 1/2 * relative to the plane of the chipping disk. A portion of the housing side opposite the infeed spout may be inclined downward away from the chipping disk to reduce impact of chips against the housing wall. The air inlet for a chip discharge blower may be located in registration with the infeed spout connection, so that the inflowing air current blowing onto the chips will deter their impact against the housing.
Inventors
- 👤 Edward O Lunn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:41
CPC Classifications
B; B27; B27L; B27L11/00; B27L11/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
207 words
An overhung disk chipper comprising a base, a generally horizontal drive shaft carried rotatively by said base and having a cantilever end portion, an overhung chipping disk carried rotatively by said cantilever end portion of said drive shaft for upward movement of the portion of said chipping disk at one side of said shaft and downward movement of the portion of said chipping disk at the other side of said shaft and said chipping disk carrying chip-cutting bits on the side thereof to which said shaft is connected for cutting wood into chips, a housing for said chipping disk having an upright wall at the same side of said chipping disk as said shaft, and an elongated feed spout at the same side of said chipping disk as said shaft and housing upright wall, having an end connected to said housing upright wall only at a location above said shaft and having its length disposed substantially parallel to a horizontal plane and at an acute angle relative to the upwardly-moving portion of said chipping disk for guiding pieces of wood to be cut into chips to move lengthwise of such wood pieces and lengthwise of said feed spout through said housing upright wall to said chipping disk.
Claim 2
Dependent Claim
207 words
An overhung disk chipper comprising a base, a generally horizontal drive shaft carried rotatively by said base and having a cantilever end portion, an overhung chipping disk carried rotatively by said cantilever end portion of said drive shaft for upward movement of the portion of said chipping disk at one side of said shaft and downward movement of the portion of said chipping disk at the other side of said shaft and said chipping disk carrying chip-cutting bits on the side thereof to which said shaft is connected for cutting wood into chips, a housing for said chipping disk having an upright wall at the same side of said chipping disk as said shaft, and an elongated feed spout at the same side of said chipping disk as said shaft and housing upright wall, having an end connected to said housing upright wall only at a location above said shaft and having its length disposed substantially parallel to a horizontal plane and at an acute angle relative to the upwardly-moving portion of said chipping disk for guiding pieces of wood to be cut into chips to move lengthwise of such wood pieces and lengthwise of said feed spout through said housing upright wall to said chipping disk.
Claim 3
Dependent Claim
56 words
The chiPper defined in claim 1, in which the housing includes a second wall at the side of the chipping disk opposite the upright wall, and said second wall has a portion higher than the shaft inclined downwardly away from the upright wall for deflecting downward chips passing through the upper portion of the chipping disk.
Claim 4
Dependent Claim
238 words
An overhung disk chipper comprising a base, a generally horizontal drive shaft carried rotatively by said base and having a cantilever end portion, an overhung chipping disk carried rotatively by said cantilever end portion of said drive shaft and carrying chip-cutting bits on the side thereof to which said shaft is connected for cutting wood into chips, a housing for said chipping disk having an upright wall at the same side of said chipping disk as said shaft, an elongated feed spout at the same side of said chipping disk as said shaft and housing upright wall, having an end connected to said housing upright wall and having its length disposed at an acute angle relative to the portion of said chipping disk moving toward said feed spout for guiding pieces of wood to be cut into chips to move lengthwise of such wood pieces and lengthwise of said feed spout, and rotary blower means in said housing operable to blow therefrom chips cut by said chipping disk, said housing including a second wall at the side of said chipping disk opposite said upright wall, and said second wall having an air inlet opening for said blower means located generally in registration transversely of said chipping disk with the connection of said feed spout to said housing upright wall and of generally the same size as the end of said feed spout connected to said housing upright wall.
Claim 5
Dependent Claim
238 words
An overhung disk chipper comprising a base, a generally horizontal drive shaft carried rotatively by said base and having a cantilever end portion, an overhung chipping disk carried rotatively by said cantilever end portion of said drive shaft and carrying chip-cutting bits on the side thereof to which said shaft is connected for cutting wood into chips, a housing for said chipping disk having an upright wall at the same side of said chipping disk as said shaft, an elongated feed spout at the same side of said chipping disk as said shaft and housing upright wall, having an end connected to said housing upright wall and having its length disposed at an acute angle relative to the portion of said chipping disk moving toward said feed spout for guiding pieces of wood to be cut into chips to move lengthwise of such wood pieces and lengthwise of said feed spout, and rotary blower means in said housing operable to blow therefrom chips cut by said chipping disk, said housing including a second wall at the side of said chipping disk opposite said upright wall, and said second wall having an air inlet opening for said blower means located generally in registration transversely of said chipping disk with the connection of said feed spout to said housing upright wall and of generally the same size as the end of said feed spout connected to said housing upright wall.
Claim 6
Dependent Claim
49 words
The chipper defined in claim 3, in which the blower means includes an impeller mounted in cantilever fashion on the chipping disk, and said impeller includes an annular plate at the side of said impeller opposite the chipping disk and having a central aperture overlapping the air inlet 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) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |