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. 20, 1990
Filed:
Jul. 26, 1989
Juji Akiba, Saitama, JP;
Junkosha Co., Ltd., Tokyo, JP;
Abstract
Liquid leakage detection apparatus is provided comprising: (a) a long detecting component wherein there are the following components bundled together: (i) a first conductor having a leading end and a trailing end, the first conductor covered by insulation, (ii) a second bare conductor having a leading end and a trailing end, the second conductor positioned parallel to the first conductor, the trailing end of the second conductor being connected with the trailing end of the first conductor, and (iii) a third conductor covered by a porous insulation and positioned parallel to the second conductor, (b) the leading end of the first conductor and the leading end of the second conductor being connected by the detecting means which detects and indicates a potential difference between the first and second conductors; (c) the leading ends of the first and second conductors also being connected, respectively, to one of the electrodes of a power supply, each through respective, known resistances; and (d) the third conductor being connected to the other electrode of the power supply such that a Wheatstone Bridge circuit is formed when the second conductor and third conductor are short circuited by a leaking liquid.