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:
Jan. 29, 1991
Filed:
Sep. 29, 1989
Evart J Vroonland, Richardson, TX (US);
LTV Energy Products, Houston, TX (US);
Abstract
This invention provides for a spring-balanced loading arm with a positive lock-down device use in a material handling system. It includes a swivel arm which is pivotally connected at one end to a support structure for swivel movement both in horizontal and vertical planes relative to the support structure. There is also provided an extendable lock-down device for positively locking the swivel arm. One end of the lock-down device is pivotally connected to the support structural and the other end is fixedly connected to the swivel arm. The lock-down device is adapted to be locked in position at several predetermined lengths. When the lock-down device is locked in a given position, it also positively locks the swivel arm and prevents any vertical movement of the loading arm.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile