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:
Nov. 22, 1983
Filed:
Sep. 18, 1981
Applicant:
Inventor:
James L Newman, Beaumont, TX (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363129 ; 43 171 ; 307106 ; 363128 ;
Abstract
An improved method of electric fish trawling which utilizes the fright-reaction exhibited by fish exposed to an electric field is disclosed. The method utilizes a trawling net equipped with electrodes which emit DC pulses having a repetition rate of six cycles per second or less, a pulse duration of approximately one millisecond, and producing a field having a voltage gradient of one-hundred eighty volts per meter. A pulse generating circuit, which uses full-wave rectified single phase power or three phase, half-wave rectified power for a condenser discharge circuit is also provided.