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:
Aug. 31, 1976
Filed:
Dec. 08, 1975
William A Tice, Knoxville, TN (US);
Other;
Abstract
Improved apparatus for positioning the needle of a stitching machine in a preselected position along its reciprocatory path including a pneumatically powered positioning motor connected to the drive shaft for the needle, a source of pressurized fluid (preferably air), conduit means connecting the source of pressurized fluid to the positioning motor, normally closed valve means interposed in the conduit means, and control means also interposed in the conduit means at a location between the valve means and the positioning motor and adaptable to activate and deactivate the motor for positioning the needle. Apparatus is provided to enhance the reliability and speed of start-up of the positioning motor and to enhance the accuracy of the position of the needle relative to its desired position at the end of a positioning cycle.