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. 17, 1982
Filed:
Mar. 03, 1980
Arthur C Van Horne, Santa Clara, CA (US);
Russel E Yarp, Sunnyvale, CA (US);
Dataproducts Corporation, Woodland Hills, CA (US);
Abstract
A locking system for directly clamping the tractor assemblies in a printer to the stationary platen in order to prevent any relative motion of the tractors with respect to the platen which may be caused by a lack of straightness of a drive bar which drives the tractors. The locking device includes an L-shaped lever which is pivotal so as to clamp a rearwardly extending portion of the platen between the bottom of the tractor and the top of a leg of the lever. The device may include a cam action locking knob which positively locks the lever in its clamped position. Both the lever and the knob are made of molded plastic. In order to balance the clamping force which is applied, a lever may be connected to each side of the tractor and actuated by a pair of connected cam action knobs. Several alternate locking systems are also disclosed.