Invention Grant
- Patent Title: Canvas stretching system with reusable corner clamps
- Patent Title (中): 帆布拉伸系统,可重复使用的角夹
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Application No.: US12996401Application Date: 2008-06-09
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Publication No.: US08413356B2Publication Date: 2013-04-09
- Inventor: Paul Vaz
- Applicant: Paul Vaz
- Applicant Address: CA Carlsbad Springs, Ontario
- Assignee: Artex Picture Frames Ltd.
- Current Assignee: Artex Picture Frames Ltd.
- Current Assignee Address: CA Carlsbad Springs, Ontario
- Agency: Ostrager Chong Flaherty & Broitman P.C.
- International Application: PCT/CA2008/001075 WO 20080609
- International Announcement: WO2009/149532 WO 20091217
- Main IPC: D06C3/08
- IPC: D06C3/08 ; D06C3/00

Abstract:
A canvas or material stretching system designed to allow a professional or amateur user to stretch a canvas or material on a frame without the use of stretching pliers and staples, both of which require considerable skill and strength. Special purpose corner clamps are temporarily used to secure the stretcher bars into an initial open miter frame. The purpose of this is to orient the double sided adhesive strip on the side of the stretchers towards the canvas or material while maintaining the adhesive strip from touching the canvas or material. Once alignment is achieved, the stretching bars are pressed down and attached onto the canvas or material and the corners are released. The corner clamps are removed and canvas or material corners are cut and folded into the open miter ends which also have adhesive strips. By rotating the stretchers axially 90 degrees into the final frame, thus closing the miters, and upon inserting U-shaped fasteners into grooves placed on the back of the stretcher the canvas or material is stretched and ready to display.
Public/Granted literature
- US20110107627A1 CANVAS STRETCHING SYSTEM WITH REUSABLE CORNER CLAMPS Public/Granted day:2011-05-12
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