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. 05, 1976
Filed:
Oct. 17, 1974
Applicant:
Inventors:
David H Woods, Pittsburgh, PA (US);
Robert H Perry, Canonsburg, PA (US);
Assignee:
Westinghouse Electric Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B61L / ;
U.S. Cl.
CPC ...
246 / ; 2461 / ;
Abstract
An antenna apparatus is disclosed for improved coupling of audio signals in relation to the vehicle track of a transit system operative with steel rails and providing a reduced cost for the associated hardware and lower crosstalk with adjacent signal blocks and track rails.
Woods, David. (1976). Antenna apparatus for vehicle track rail signals (U.S. Patent No. 3984073). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3984073
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile