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:
Jan. 02, 1990
Filed:
Mar. 10, 1989
Serafino S Canino, Torrington, CT (US);
Other;
Abstract
A drywall utility knife is set forth including a main housing provided with an elongate slot positioned in a parallel relationship between the opposed parallel sides of the main housing. A removable knife housing is frictionally retained relative to the main housing and is provided with a biasing member to bias a utility knife against an interior wall of the housing to maintain the knife at a desired orientation relative to the housing. A pivotally mounted saw is oriented from a first position within the housing to a second position exteriorly of the housing and aligned lengthwise thereof formed with a resilient detent lock engageable with a rear blunt surface of the knife that is displaceable relative to the blunt surface to enable repositioning of the knife to the first position. A rasp surface is formed on a bottom surface of the knife for abrading drywall once severed or sawed by the blades of the knife. The knife is formed with a downwardly tapering forward side with an arcuate rear side to enable secure grasping of the knife within the palm of an individual's hand.