Patents by Inventor Michael Obara

Michael Obara 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).

  • Shield ground adapter for kickpipes and stuffing tubes
    Patent number: 5237129
    Abstract: A shielded cable passes through a kickpipe in a structural plate member, h as the deck of a ship. The kickpipe has a necked-down portion designed to receive the cable at a point where the cable shielding has been exposed. Axially compressible radially expandable iris, or toroidal, springs are engaged by an adapter nut threadably received inside the kickpipe to create a low impedance ground connection from the cable shielding to the deck. The adapter nut has a cavity for receiving a packing material and a gland nut is received in the adapter cavity to seal the ground connection from the environment.
    Type: Grant
    Filed: June 13, 1991
    Date of Patent: August 17, 1993
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Michael Obara