Patents by Inventor Michael J. Schumaker

Michael J. Schumaker 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).

  • Lamp having a diffuser and shade
    Patent number: 5392204
    Abstract: A lamp has a cup shaped base which is open at its upper end, a lamp socket mounted in the upper end of the base, a diffuser having a lower end threadably received in the base, a side wall and a top for defining an enclosed space for a lamp bulb. A lamp shade is mounted on a support is disposed at the top end of the diffuser and extends downwardly in surrounding relation to the diffuser. Set screws are provided for securing the diffuser to the base and the shade to the support.
    Type: Grant
    Filed: November 4, 1993
    Date of Patent: February 21, 1995
    Assignee: Adjustable Fixtures Co.
    Inventor: Michael J. Schumaker
  • Examining lamp
    Patent number: 4646205
    Abstract: A medical examining lamp has a generally parabolic reflector, a socket for receiving an incandescent lamp and a removable shield mounted adjacent the open end of the reflector and in alignment with the socket. The reflector has a blue anodized surface to color correct the incandescent lamp.
    Type: Grant
    Filed: October 4, 1985
    Date of Patent: February 24, 1987
    Assignee: Adjustable Fixture Company
    Inventor: Michael J. Schumaker