Patents by Inventor Mario G. Gasparetto

Mario G. Gasparetto has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Arc-proof shield for switch gear compartment
    Patent number: 4864466
    Abstract: An arc-proof shield for covering a rectangular switch gear compartment having slotted channels secured to the inner face of each side wall thereof; the shield comprises a metallic cover consisting of a rectangular panel and flanged. Flaps are mounted on three of the flanged walls, each flap having a swivel portion receivable in a slotted channel of the compartment. A pair of handles are mounted frontwardly of the panel, each having a portion traversing the panel and connected to a link member associated with the swivel portion of pair of flaps so that actuation of the handles causes the swivel portion of the flaps to move in and out of the slotted channels of the compartments.
    Type: Grant
    Filed: June 27, 1988
    Date of Patent: September 5, 1989
    Assignee: BBC Brown Boveri Canada, Inc.
    Inventor: Mario G. Gasparetto