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:
Dec. 14, 1993
Filed:
Mar. 06, 1992
Rolf D Kahle, Saratoga, CA (US);
Compulog Corporation, Saratoga, CA (US);
Abstract
The invention provides an electrical connector network for coordinately controlling multiple electrical appliances connected to the network. The network comprises a control outlet connected to an electrical power inlet, at least one slave outlet, and means responsive to current flow to the control outlet for selectively connecting the slave outlets to the power inlet, whereby power is available at the slave outlets only when current flows through the control outlet. In a preferred embodiment, the invention includes a current transformer for sensing current to the control outlet, the transformer producing a secondary current which is conditioned by an amplifier to drive a power triac, actuating a relay controlling power to the slave outlets. The connector network may be embodied in various structures, including extension cords, power strips, wall outlets or electrical appliances.