Patents by Inventor David E. Zopf

David E. Zopf 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: 4369949
    Abstract: A stronger, less expensive aesthetically pleasing speaker support is provided for elevating, inclining and vibration isolating a loudspeaker in relation to a floor surface. The speaker support or pedestal comprises a roughly box-shaped hollow rigid base structure for elevating a loudspeaker placed thereupon. The rigid hollow base structure is molded over and encased in a continuous layer of self-skinning, semi-rigid urethane foam for vibration isolating the loudspeaker. The support includes a floor engaging surface and a speaker engaging surface, the speaker engaging surface being inclined downwardly from front-to-back with respect to the floor engaging surface for inclining the loudspeaker. A speaker engaging stop is disposed along the back of the speaker engaging surface, the stop extending above the speaker engaging surface to prevent a loudspeaker from sliding therefrom.
    Type: Grant
    Filed: May 27, 1980
    Date of Patent: January 25, 1983
    Assignee: CBS Industries
    Inventor: David E. Zopf
  • Patent number: 4369950
    Abstract: A turntable support for vibration isolating, elevating and leveling a phonograph turntable in relation to a resting surface is provided comprising a roughly rectangular, rigid base structure for elevating the turntable. A continuous layer of self-skinning, semi-rigid urethane foam completely encapsulates the rectangular base structure for vibration isolating the turntable. A turntable engaging surface is disposed atop the support and a plurality of resting surface engaging feet are provided, each resting surface engaging foot including means for selectively adjusting the length of the feet and thus leveling the turntable.
    Type: Grant
    Filed: May 27, 1980
    Date of Patent: January 25, 1983
    Assignee: Complete Business Services Corp.
    Inventor: David E. Zopf
  • Patent number: 4130153
    Abstract: A golf bag club separator which consists of an insert adapted for selective positioning within the bottom portion of a golf bag so as to selectively divide the lower portion of the golf bag into a plurality of compartments. The insert consists of a vertical divider panel having vertically oriented arcuately curved opposed end panel portions which are adapted to matingly abut against the inside wall surface of the golf bag. The vertical edges of each curved end panel are provided with wall engaging flanges therealong. In one embodiment of the invention, the arcuately curved opposed end panel portions are each provided with vertically oriented spaced-apart flanges which define a channel therebetween which is adapted to retentively engage the vertical edges of the divider panel so as to retain the divider panel in its vertical operative use position.
    Type: Grant
    Filed: March 2, 1978
    Date of Patent: December 19, 1978
    Inventor: David E. Zopf
  • Patent number: D255290
    Type: Grant
    Filed: March 2, 1978
    Date of Patent: June 10, 1980
    Inventor: David E. Zopf