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:
May. 10, 1988
Filed:
Sep. 16, 1986
Cheng-Hsun Wu, Tuinan, TW;
Other;
Abstract
An improved grounding system comprises a tube which is vertically buried under the ground and cut with a plurality of holes at its lower part, and receives a wire inside it. The wire connects at its top with a set of current leakage detector that alarms a small leakage by a light and turns off power automatically in case of a rather big leakage. The lower end of the wire links with a conductive electrode that is also placed in the tube and is immersed in the underground water so as to be able to release electricity to the ground without keeping any store of potential. Therefore, the electrical appliances including lightening rod conductors equipped with this device can be safely used without producing any shock.