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:
Jun. 27, 1989
Filed:
Dec. 10, 1987
Applicant:
Inventors:
Glen Trickle, Racine, WI (US);
Michael A Swessel, Cudahy, WI (US);
Assignee:
Rite-Hite Corporation, Milwaukee, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340540 ; 340686 ; 340687 ; 414401 ;
Abstract
A system for use in a loading dock facility includes a control unit which checks the condition of input terminals connected to control switch, locking device, overhead door and/or leveler condition sensors and which develops signals on output terminals connected to signal lights, a vehicle locking device, an overhead door mechanism and/or a leveler device. The control unit is programmable to be versatile and to obtain various safe and reliable modes of operation and is also operable to perform various diagnostic operations.