Patents by Inventor Mitchell E. Wolf

Mitchell E. Wolf 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: 5493942
    Abstract: A removable drumhead for use over atop the existing drumhead of a musical drum is disclosed. The removable drumhead includes a textured playing surface adapted to permit the user to stroke the removable drumhead with a drum brush and obtain a desired musical tone. The removable drumhead is constructed from a thin sheet of supple material such as plastic. The playing surface may be formed to be integral with the body of the sheet of material. The removable drumhead may include a tab-like extension adapted to permit the user to grasp and manipulate the drumhead, e.g. for positioning the removable drumhead atop the existing drumhead or for removing the removable drumhead from the drum.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: February 27, 1996
    Inventor: Mitchell E. Wolf
  • Patent number: 4889303
    Abstract: A retainer arm for use in supporting an object above a base member is disclosed. The retainer arm may include a smooth walled tubular elongate housing which defines a hollow channel in the interior thereof. A metal core formed by one or more strands is housed within the channel. An end section is mounted on each of the opposing ends of the housing, thereby compacting the metal wire within the housing. The core and shaft are manually bendable but of sufficient rigidity to retain the configuration imparted thereto by the bending while also supporting an object mounted on an end of that arm.
    Type: Grant
    Filed: June 24, 1988
    Date of Patent: December 26, 1989
    Inventor: Mitchell E. Wolf
  • Patent number: D305026
    Type: Grant
    Filed: December 12, 1986
    Date of Patent: December 12, 1989
    Inventor: Mitchell E. Wolf