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. 19, 1978
Filed:
Jun. 15, 1977
Applicant:
Inventor:
Roger C Hertel, Minneapolis, MN (US);
Assignee:
Buckbee-Mears Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S / ; G01S / ; G01S / ;
U.S. Cl.
CPC ...
340 / ;
Abstract
An echo sounding device for searching and exploring the depth of a body of water is provided with a cathode ray tube (CRT) display showing the echo returns. A memory device is provided to store the electrical signal levels of the echo returns while new signal returns are being received to enable presentation of a bar-graph type of display on the CRT.