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. 25, 1979
Filed:
Oct. 30, 1978
Richard Guy, Mission Viejo, CA (US);
Other;
Abstract
An apparatus for stretching canvas and like materials that must be stretch-mounted to a supporting stretcher-frame structure generally comprising a four-sided wooden frame member, whereby the canvas is stapled thereto. The apparatus comprises an elongated, horizontal, tubular, structural-beam member affixed at both ends to vertical supports; and has an elongated, biased, clamping bar member hingedly mounted along the full length of the upper surface of the structural-beam member, the clamping bar being provided with a canvas-securing keeper located thereon to engage, under tension, one edge of the canvas when the canvas is positioned between the clamping bar and the beam member. The operation of the clamping bar is provided by a spring-loaded handle and a trigger-release device, the trigger-release device being adapted to be adjustably positioned on either side of the canvas-stretcher frame during the operation thereof. Further included is a pair of stretcher-bar holders which are arranged to be slidably received on the beam member and to be adjustable to support various sizes of stretcher frames.