Abb Power Td & Company

Leo E Blom

Robert S Karnbach

William J Book

David S Komives

Eldridge R Byron

A switchgear enclosure which permits closed door operation during the opening and closing of the primary contacts of electrical apparatus housed in the enclosure with the use of an arc-suppressor-type contact.

Arc-resistant enclosure employing arc-quenching contact disconnect and

An arc resistant enclosure including two compartments having a toggle flap which permits the two compartments to share a single exit path from the enclosure for any pressure and gases produced in either compartment.

Arc-resistant switchgear enclosure employing a toggle flap venting system

Switch operator having an actuator, a drive mechanism coupled to the switch for actuating a switch in response to a rotational force applied to the drive mechanism, and a flexible shaft which couples the actuator to the drive mechanism and communicates the rotational motion of the actuator to the drive mechanism. An interlock mechanism prevents the actuation of a second switch as a function of a first switch and prevents the opening of a door as a function of the position of the first switch.

Growing community of inventors

Murfreesboro, TN, United States of America

Leo E Blom