Patents by Inventor Michael H. Beard

Michael H. Beard 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).

  • Patent number: 5546468
    Abstract: A combination speaker and amplifier unit has speaker located on the front of a cabinet and speaker wire receptacles located in the back of the cabinet for providing speaker wire connections to a stereo unit. Also in the back of the cabinet is a power booster amplifier mounted thereon for amplifying the left and right stereo signals provided by the stereo unit. A power cable extends out the base of the power booster amplifier which is mounted to a cut-out section of the back of the cabinet so as to place the power booster amplifier within the cabinet, The power cable has a cigarette lighter adapter plug allowing the power booster amplifier to by powered by the power supplied to the cigarette lighter socket of an automobile.
    Type: Grant
    Filed: May 4, 1994
    Date of Patent: August 13, 1996
    Inventor: Michael H. Beard