The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 13, 1988
Filed:
Nov. 18, 1987
Applicant:
Inventor:
Donald E Strong, Remus, MI (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B27C / ;
U.S. Cl.
CPC ...
144176 ; 241 92 ; 2412 / ;
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.