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. 13, 1979
Filed:
Mar. 01, 1978
Applicant:
Inventor:
David E Godfrey, Burnt Hills, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73579 ; 299-1 ;
Abstract
The frequency response of the cutting tool of a coal mining machine is monitored at a resonant frequency of the cutting tool, using a vibration transducer mounted on a non-rotating support arm, to detect the difference between coal and rock or other enclosing material. The horizon control sensor maintains the mining machine within the undulating coal seam.
Godfrey, David. (1979). Coal seam sensor (U.S. Patent No. 4143552). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4143552
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile