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:
Aug. 02, 1977
Filed:
Aug. 23, 1976
Ramesh Chandra Dwivedi, Houston, TX (US);
Teledyne Exploration Company, Houston, TX (US);
Abstract
An under-sea-water electric discharge generator includes a source of stored electrical energy connectable through solid state switch means to a cable extending to a number of pairs of electrodes to be towed under sea-water. The switch means comprises an inductor in series with five main branch circuits: a capacitor discharge branch includes a plurality of SCRs connected in series and a sub-branch of RC elements for gate control with one RC element across each but an end one of the SCRs; a reverse discharge branch includes a plurality of diode means, one across each SCR. Diodes across the gate-cathode circuit of each but said one SCR protect against reverse negative voltage during reverse discharge. Static, dynamic, and over voltage branches parallel the SCR branch with one element of each (resistor, RC element, thyrector) across each SCR.