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:
Oct. 24, 2000
Filed:
Sep. 09, 1998
William A Tice, Knoxville, TN (US);
Moshe Shloush, Knoxville, TN (US);
Burton L Grocke, Knoxville, TN (US);
Tice Engineering and Sales, Inc., , TN (US);
Abstract
An electronically geared felling machine employs physical separation of the needles and loopers to provide significant ergonomic and functional advantages. The felling machine includes a needle servo motor for driving the needles in a sewing motion and a looper servo motor for driving the loopers in their sewing motion. The motion of the needles and loopers are electronically geared to enable these sewing parts to move in concert to produce a plurality of stitchings in materials. Materials may be moved through the sewing area of the felling machine by use of feed rollers positioned fore and aft of the needles. The feed rollers are driven by servo motors. Pneumatic cylinders urge the feed rollers downwardly against the materials to enable the feed rollers to maintain continuous contact with the materials and to maintain continuous movement of the materials through the sewing area of the machine. Electronic gearing of the felling machine's sewing parts is enabled by a computer which uses servo motor positional information to calculate motion commands that are sent to the servo motors.