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:
Jan. 03, 1978
Filed:
Mar. 07, 1977
Applicant:
Inventors:
Jonathan D Young, Worthington, OH (US);
Ross Caldecott, Columbus, OH (US);
Assignee:
The Ohio State University, Columbus, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
328 67 ; 328 65 ; 307268 ;
Abstract
A synchronizing, pick-off type circuit for use with underground detection systems of a variety utilizing a high voltage pulse generator generating pulses by dielectric breakdown over a gap and evidencing a sustained and discernable substantially lower voltage level for a short interval following the pulse. Pick-off is derived by tapping a transmitting coaxial cable with a 'T' connection carrying a choke inductor and a resistor, each of which is coupled to the central conductor of the coaxial cable and which are mutually connected in parallel circuit relationship.