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AssigneeABB Power T&D Company Inc.
InventorsVirgil L. Borgmeyer, Chester F. Trice, Dale A. Tempco, Thomas F. Clark, William J. Ritter, Mari Marisiddaiah
Estimating the term…
An electrical transformer having an integral cabinet with an apparatus for latching and locking the doors of the cabinet. The apparatus is comprised of a three point latch system. The first and second latch points are vertical latch rods which engage sills in the cabinet. The third latch point is a latch plate which rotates with a shaft extending through the first door and to which a handle is attached. In the secured position, the latch plate rotates behind a flange extending from an interior wall, thereby preventing the door from being pulled open. The internal wall divides the cabinet into low and high voltage compartments and forms a structural portion of the cabinet. A bolt extends through the first door, the second door, the latch plate and the flange, thereby preventing the doors from being pulled open and preventing rotation of the handle. A cylinder attached to the first door surrounds the head of the bolt and prevents access thereto. The shackle of a padlock ends through the handle and the cylinder, thereby preventing rotation of the handle and further restricting access to the bolt.
An electrical transformer structure comprising:
A cabinet for housing an electrical transformer comprising:
In a transformer enclosure having top and bottom sills, first and second doors and a vertically extending interior wall dividing said enclosure into high voltage and low voltage compartments, a tamper resistant locking device for securing said first and second doors, comprising:
Dependencies are inferred from the claim text.