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. 01, 1996
Filed:
Jun. 30, 1994
Applicant:
Inventors:
David R Schricker, Dunlap, IL (US);
Satish M Shetty, East Peoria, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
36455101 ; 340679 ;
Abstract
An apparatus is provided for indicating a fault condition in a machine having a plurality of parameters each having levels being dependent upon machine performance. The apparatus includes a sensor adapted to produce an electrical signal in response to the level of one of the of parameters; and a processor for identifying a trend in the parameter level in response to the electrical signal, calculating the duration and slope of the trend; and determining whether a first warning threshold is exceeded in response to the duration and slope of the trend, the first warning threshold being a function of duration and slope.