Wood chipper with seal protector

Details Wood chipper with seal protector Wood chipper with seal protector

1987-11-18

1988-09-13

Bray, W. Donald

Woodworking

Slicer

Rotary disk

241 92, 241278R, B27C 100

Patent

active

047702176

ABSTRACT:
A wood chipper for chipping wood, such as logs, into particles, has a chipping block rotatably mounted in a housing on a shaft, which in turn is mounted to a housing through bearings. Seals protect the bearings from dirt and moisture. The seals on an inlet side of the chipper block are protected by a tubular collar mounted to and extending axially from the chipper block in concentric relationship with a portion of the housing in which the seals are mounted. The housing has a tubular portion which extends near to the chipper block and within the tubular collar to provide a tortuous path for dirt and debris. The seals are mounted within the tubular extension.

REFERENCES:
patent: 1295388 (1919-02-01), Tidmarsh
patent: 1932166 (1933-10-01), Sumner
patent: 3000411 (1961-09-01), Ealet
patent: 3866843 (1975-02-01), Lunn
patent: 4635862 (1987-01-01), West et al.

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