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:
Aug. 29, 2000
Filed:
Jul. 30, 1999
John B Allison, Chandler, AZ (US);
Other;
Abstract
An electrical safety outlet is provided and consists of a plug receptacle having typically at least a large neutral blade-slot and a small voltage blade-slot for receiving a large neutral blade and a small voltage blade of a corresponding and mating multi-prong polarized plug. The invention also applies to older plugs and three-blade plugs where both the neutral and voltage blades are the same width. In one embodiment, insertion of the multi-prong polarized plug depresses the exterior lobes of two separate cams which work together to change the normally open circuit receptacle of the present invention to a closed circuit receptacle. In order for both cams to be activated, the mating multi-prong polarized plug must be inserted almost completely into the plug receptacle before the electrical circuit is closed, thereby supplying current to the plug. The neutral prong must be at least the width of the voltage prong to close the circuit.