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:
Mar. 02, 1999
Filed:
Mar. 25, 1997
Kirk W Wolfgram, Rochester, MN (US);
Gerald D Wyatt, Rochester, MN (US);
Waters Instruments, Inc., Rochester, MN (US);
Abstract
The present invention provides an electric fence controller for delivering an electrical shock to a load when the load simultaneously contacts a fence terminal and the underlying ground. In one embodiment, the controller comprises an AC power supply and a fence terminal positioned above underlying ground. The controller also contains a voltage step-up circuit coupled to the AC power supply for charging at least one multiplier unit and for producing at the fence terminal a substantially increased DC voltage. The at least one multiplier unit discharges as an electric shock to the load when the load contacts the fence terminal and the underlying ground.