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:
Apr. 14, 1987
Filed:
Jul. 17, 1985
Gene F Croyle, Plano, TX (US);
Levi Strauss & Co., San Francisco, CA (US);
Abstract
Apparatus to align a plurality of objects while being concomitantly transported via a drive mechanism. Included is a detectional device at fixed locations in the path of transport to determine the relative actual positions of the objects and comparing the determined positions with a relative position to be maintained. On the basis of the comparison, the positional detection means emits a correction signal for operating a repositioning mechanism which imposes a restraining force on the leading of the objects that restrains the object in opposition to the transport force imposed thereon by the drive mechanism. For generating the emitted correction signal there is included circuit means including an encoder for generating pulses and means to determine the quantity of pulses corresponding to the variance between the compared portions of the objects. This enables high resolution monitoring to be effected whereby the restraining force imposed against the object can either be proportional to the magnitude of the correction signal or can be a fixed force applied by the repositioning mechanism for a proportioned time interval.