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:
Aug. 11, 1998
Filed:
May. 13, 1996
Applicant:
Inventors:
Richard J Lonzinski, Johnson City, NY (US);
Augustus R Baldini, Binghamton, NY (US);
Assignee:
The Raymond Corporation, Greene, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66F / ;
U.S. Cl.
CPC ...
187223 ; 187224 ;
Abstract
A method and/or apparatus for reducing the maximum speed of a lift truck when a fork carriage exceeds a fork carriage trip height and a limit switch positioned at the trip height to detect trip height has failed. Using lift truck control signals, a calculated fork carriage height is determined and compared to the trip height which corresponds to the limit switch position. When the calculated height reaches the trip height and the limit switch does not provide a sensed signal, a latch is set in a non-volatile memory which limits the maximum truck speed until the limit switch is again operable.