Patent information:

Patent:Utility 3,251,014
Patented:May 10, 1966
Applied:January 16, 1964
Title:Electrical Coupling Device
Description:Miscellaneous internal coupling device to obtain a voltage from high voltage power line
Category:Miscellaneous
Assigned to:Sigma Instruments, Inc.

Patentee Information:

STEIN, Laurence B. Hingham, MA

Class and subclass information:

Class:336INDUCTOR DEVICES
Subclass:90WITH OUTER CASING OR HOUSING;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:139INSULATORS Combined;
Class:324ELECTRICITY: MEASURING AND TESTING
Subclass:127 
Class:336INDUCTOR DEVICES
Subclass:84RWITH ELECTRIC AND/OR MAGNETIC SHIELDING MEANS;
Class:336INDUCTOR DEVICES
Subclass:96WITH OUTER CASING OR HOUSING Potted type;
Class:336INDUCTOR DEVICES
Subclass:173INTERLINKED COILS OR WINDINGS (E.G., CURRENT TRANSFORMER);

Known specimens:

Number:Specimen known

Drawings:

Drawing page 1

Page 1