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:
Oct. 29, 1991
Filed:
Jun. 19, 1990
Applicant:
Inventors:
Stanley J Hallett, Chicago, IL (US);
Thomas E Hallett, Melbourne Beach, FL (US);
Assignee:
Pathfinder Systems, Inc., Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E01B / ;
U.S. Cl.
CPC ...
104130 ; 104304 ;
Abstract
An overhead suspended track mounted vehicle guidance system having an active on board station selection system and a passive non switching track. The slotted track includes an interiorly depending turn vane for guiding the guide wheel of the vehicle mounted guidance system. The system includes provision for fail safe operation wherein a mechanical interlock automatically assures next station selection in the event of guidance system failure.