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:
Feb. 20, 1990
Filed:
Sep. 23, 1988
John E Wible, Plainesville, OH (US);
Caterpillar Industrial Inc., Mentor, OH (US);
Abstract
An obstacle detection system for protecting a frame upper end portion and laser scanning device of a self guided vehicle from damage by external objects includes a device for delivering a light signal in a direction along a preselected elevationally oriented axis and a device for receiving a reflection of the delivered light signal and delivering a condition control signal in response to receiving the reflected light signal. A supporting assembly is connected to the frame upper end portion and a guide frame is connected to the supporting assembly and defines a plane passing through the elevationally oriented axis. A reflecting member is supported on the guide frame and a connecting device connects the reflecting member to the support assembly and maintains the reflecting member for movement between a first position at which the reflecting member reflects the light signal towards the receiving device and a second position spaced from the first position at which the reflecting member is free from reflecting the light signal towards the receiving device.