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:
Sep. 03, 2002
Filed:
Jun. 13, 2000
Applicant:
Inventors:
Gunther Trummer, Baiersdorf, DE;
Armin Seitz, Dusseldorf, DE;
Alfred Neugobauer, Stuttgart, DE;
Karl Forster, Commack, NY (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 2/704 ;
U.S. Cl.
CPC ...
G01R 2/704 ;
Abstract
A distance measuring device is capable of measuring a distance to a piston with a cylinder both discretely and continuously. The distance measuring device includes a coupling probe located axially symmetrically with respect to a piston rod within the cylinder. The coupling probe transmits a continuous wave electromagnetic signal into the cylinder and detects its reflection to measure the distance to the piston while the piston is moving.