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:
Mar. 31, 1987
Filed:
Apr. 30, 1985
Richard L Harrington, Farmersville, TX (US);
Levi Strauss & Co., San Francisco, CA (US);
Abstract
Fabric parts are fed to a sewing operation through a lap seam folder and the overlapped edges of the parts are maintained in proper relationship by a pair of rollers engageable with the respective parts and mounted for rotation in respective planes of rotation which intersect the feedline of the parts approaching the sewing needle. The rollers are mounted on pivotally supported arms which are operably connected to respective pneumatic cylinder type actuators for moving the arms between operative and retracted positions and for adjusting the biasing force on the arms in accordance with the type of fabric being fed through the seam folder device. The biasing forces on the rollers may be adjusted by adjusting the plane of rotation with respect to the feed direction as well as by the biasing force provided by the respective actuators.