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:
Apr. 04, 2017
Filed:
Jun. 18, 2015
Hubbell Incorporated, Shelton, CT (US);
Jian Hua Li, Bayside, NY (US);
Hubbell Incorporated, Shelton, CT (US);
Abstract
A tamper resistant receptacle having a propeller shutter assembly comprising a propeller shutter comprising a central hub with an annual opening, a pair of radially extending arms, and a wing block disposed on the end of each arm. The shutter assembly also includes an anchor for attaching the propeller to the receptacle body and a spring member to bias the propeller in the 'closed' position. The wing blocks are sized to block a respect one of the hot and neutral openings of a standard 15-amp electrical receptacle. The wing blocks each include a ramp or inclined cam surface. These surfaces are juxtaposed such that when a plug blade hit one surface and cams past it to cause rotation of the propeller, the opposite plug blade cams down and past the other surface to cause rotation of the propeller in the same direction. This configuration causes the propeller to translate vertical force from the plug blades into rotational force in a direction and of sufficient force to overcome the spring bias of the spring and rotate the propeller wing block out of the way of the electrical contacts such that the blades can 'plug in' to the device's electrical contacts.