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. 27, 2001
Filed:
Jan. 21, 2000
Ian Beverly, Blackburn, GB;
Spencer Wright Industries, Inc., Dalton, GA (US);
Abstract
The hooks of a cut pile tufting machine have a cam or chamfer surface in the form of an inclined ramp in the shank of the hook adjacent the throat extending to the cutting edge, the hooks being positioned in a hook module with a dual or compound angle relatively to the body of the module. The knife which cooperates with the hook to cut loops of yarn seized by the hook is positioned vertically relatively to the hook but is tilted relatively to the hook. The hook is inclined horizontally toward the knife and is tilted vertically away from the knife. The result is that initial knife tension against the hook is substantially eliminated while additional knife tension is created during the cutting stroke. The vertical positioning of the knife and the angular positioning of the hook away from the knife results in substantially eliminating J-cutting. The hook is preferably inclined horizontally approximately 2° toward the knife, inclined vertically approximately 2° from the knife and the knife is tilted approximately 2° horizontally toward the hook.