FREDERICK BARNES ESSEX
Pilots at Pettibone Rd, Cleveland, OH

License number
Ohio A0555974
Issued Date
Nov 2016
Expiration Date
Nov 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
31805 Pettibone Rd, Cleveland, OH 44139

Professional information

Frederick Essex Photo 1

Method To Make Safe An Ungrounded Electrical Receptacle And Apparatus Therefor

US Patent:
5269697, Dec 14, 1993
Filed:
Mar 11, 1992
Appl. No.:
7/850956
Inventors:
Frederick B. Essex - Solon OH
International Classification:
H01R 1344
US Classification:
439148
Abstract:
A method is taught whereby an ungrounded safety electrical receptacle or outlet is made incompatible with a three-pronged safety plug, thereby to warn the user that the receptacle is not grounded. The method employs various fillers to fill or otherwise block entry to the hole in the outlet that receives the grounding prong of the safety plug. Labelling of the receptacle employing the filler is included. The various fillers for use in the method are also claimed, as are labelling techniques.