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:
Feb. 05, 1991
Filed:
Jul. 20, 1989
Frederic A Longworth, St. Paul, MN (US);
Todd R Betterley, Hastings, MN (US);
Minnesota Mining and Manufacturing Company, Saint Paul, MN (US);
Abstract
A guard for teeth on a cutting blade comprising a guard portion having a side part adapted to lay along one side of the teeth and a projecting part adapted to project past the points of the teeth, an anchor portion adapted to be fixed to the blade at a position spaced from the teeth, and a hinge portion of resiliently flexible polymeric material joining the guard and anchor portions. The hinge portion affords movement of the guard portion relative to the anchor portion from a normal protecting position along and projecting past the teeth, to a cut position spaced from the teeth so that the teeth can be used to cut material, while biasing the guard portion to its normal protecting position.