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:
Mar. 19, 2002
Filed:
Apr. 14, 2000
Applicant:
Inventor:
William W. Banks, New Market, MD (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 1/302 ; G01B 1/318 ;
U.S. Cl.
CPC ...
G01B 1/302 ; G01B 1/318 ;
Abstract
A detection apparatus and method reliably determine the position of a hydraulically actuated telescoping boom. The detection system is built right into the hydraulic piston apparatus which is used to extend and retract the telescoping boom. A pair of flow meters is used to measure the flow rate into and out of the hydraulic cylinder. In some cases, only a single flow meter at either the inlet or outlet may be used. The measured flow signals are input into a processor which determines piston position and boom position.