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:
Dec. 10, 1991
Filed:
Jan. 11, 1991
Applicant:
Inventor:
Robert T Ackerman, Seattle, WA (US);
Assignee:
Nicholson Manufacturing Company, Seattle, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B27L / ; B27G / ;
U.S. Cl.
CPC ...
1442 / ; 144230 ; 144341 ; 407 49 ;
Abstract
Rotary cutters for ringer debarkers each have multiple cutter units secured together in coaxial staggered relation. Each cutter unit has gullets between gauge lands, and has knives in the gullets clamped against the leading side of the lands by wedging keys secured in the gullets. The staggering of the cutter units provides each knife with a gauge land on one of the other units for cutting depth control.