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:
Nov. 17, 1998
Filed:
Sep. 22, 1997
Luis C Contreras, Placentia, CA (US);
Roger S Kincel, Carlsbad, CA (US);
Other;
Abstract
The improvement to the tying apparatus consists of an intermittent rotatable pneumatic drive to operate the apparatus in place of the electric drive system. The pneumatic drive includes a rotary actuator (20) with a gear arrangement and one-way clutch (26) that provides the 360 degree rotation required to operate the apparatus. A control valve (36) with a single pilot control energizes the actuator clockwise for functional operation and counterclockwise to reset, ready for a subsequent operation. A roller actuated limit valve (42) is in communication with the apparatus program plate and, when mechanically triggered, energizes the pilot portion of the control valve, driving the program plate a full 360 degrees, completing a functional operation of encircling, gathering, twisting and cutting tie material around an article, such as a bag, sack, or other like-open mouth articles. A pneumatic valve (48) with a pushbutton (50) bypasses the manual trigger system of the apparatus in the event of malfunction or jam, allowing the device to reset itself into the ready to operate position.