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. 10, 1981
Filed:
Mar. 21, 1979
Frank P Haley, Upland, CA (US);
FMC Corporation, San Jose, CA (US);
Abstract
A system for remote control of an articulated loading arm, comprising a light source and a plurality of light actuated relays enclosed in an explosion-proof container, and a plurality of light-controlling switches mounted adjacent the loading arm. Light from the source is conveyed through a plurality of light pipes to the switches which either interrupt or transmit light to a plurality of optical fibers which are each connected between one of the switches and a corresponding one of the relays. The light pipes, switches and optical fibers can be used to control operation of the loading arm in a potentially explosive environment while the relays open valves and provide control of hydraulic fluid from the safety of the enclosed container. The controlled hydraulic fluid provides power to a plurality of hydraulic rams which operate the loading arm.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile