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:
Dec. 04, 1979
Filed:
Sep. 05, 1978
Applicant:
Inventors:
Elwin W Seeley, San Diego, CA (US);
Verne E Hildebrand, San Diego, CA (US);
Assignee:
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Primary Examiner:
Int. Cl.
CPC ...
H01Q / ; H01Q / ;
U.S. Cl.
CPC ...
343710 ; 343769 ;
Abstract
A transmitting antenna that can be inflated with air or a liquid dielectric nd floated in seawater. It consists of a cuplike cavity backing a radiating annular slot antenna. It can be used to communicate to submarines or surface ships or as a navigation transmitting antenna. It is small compared to the wavelength of the operating frequency.