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:
Sep. 23, 1980
Filed:
Feb. 08, 1979
John E Olson, Portland, OR (US);
Cascade Corporation, Portland, OR (US);
Abstract
A light assembly specially mounted upon a lift truck load carriage at a position adjacent the bottom thereof and rearwardly of the forward end a load fork or other similar forwardly-extending load-engaging member, for forwardly projecting a shadow of the load-engaging member to aid the lift truck operator in determining the position thereof relative to a vertical array of stacked loads such as in a warehouse. A transfer mechanism is provided wherein the light assembly is removably mounted upon the carriage and, when the carriage is lowered beyond a predetermined position relative to the mast, the light assembly is transferred from its removable mount on the carriage to a fixed mount on the mast so that it does not follow the carriage downwardly. Upon elevation of the carriage above the aforementioned position, a reverse transfer takes place whereby the light is retransferred from the mast to the carriage and thus follows the carriage upwardly. The light assembly projects light forwardly in a substantially horizontal direction when on the carriage, but assumes a downwardly-tilted attitude after is has been transferred to the mast.