Patents by Inventor David D. Sobel

David D. Sobel 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: 4651988
    Abstract: A hand held exercise device capable of being detachably used as a handle with an empty container.
    Type: Grant
    Filed: April 2, 1985
    Date of Patent: March 24, 1987
    Inventor: David D. Sobel
  • Patent number: 4631997
    Abstract: A method and apparatus for simultaneously cutting a plurality of picture frame mats with picture display windows in a single operative procedure by initially arranging the mats in a reverse and inverted order and cutting them with an apparatus mounting a plurality of cutters, one for each mat, at an angle to the planes of the mats and thereafter separating and rearranging the mats to frame the picture in their desired picture frame array.
    Type: Grant
    Filed: February 18, 1986
    Date of Patent: December 30, 1986
    Inventor: David D. Sobel
  • Patent number: 4590834
    Abstract: A method and apparatus for simultaneously cutting a plurality of picture frame mats with picture display windows in a single operative procedure by initially arranging the mats in a reverse and inverted order and cutting them with an apparatus mounting a plurality of cutters, one for each mat, at an angle to the planes of the mats and thereafter separating and rearranging the mats to frame the picture in their desired picture frame array.
    Type: Grant
    Filed: September 28, 1984
    Date of Patent: May 27, 1986
    Inventor: David D. Sobel
  • Patent number: 4531315
    Abstract: A corner bracket for assembling adjacent border members of an "art frame" having a longitudinal channel for receiving the bracket. The bracket is provided with two angularly disposed legs, each of which is formed with a generally triangularly shaped aperture. A wedge is insertable into the aperture to distend the legs into locking engagement with the walls of the border member.
    Type: Grant
    Filed: August 31, 1984
    Date of Patent: July 30, 1985
    Inventor: David D. Sobel
  • Patent number: 4428135
    Abstract: A bracket for a frame assembly having at least one side member provided with a slot and channel. The bracket is formed of a flat base having a pair of spaced parallel ribs extending from one surface. Each of the ribs is provided with a flange extending in opposite directions. The bracket is pressed into the slot.
    Type: Grant
    Filed: January 10, 1983
    Date of Patent: January 31, 1984
    Inventor: David D. Sobel
  • Patent number: 4420138
    Abstract: A self-locking clip for a picture frame that is formed with a channel. The clip comprises an elongate piece of spring steel whose longitudinal end is bent to define a planar shelf from which depends a leg which defines an edge that is adapted frictionally to engage the inside surface of the channel and when the planar shelf is depressed, the edge is released from the inside surface of the channel to allow the clip to slide relative thereto.
    Type: Grant
    Filed: August 6, 1981
    Date of Patent: December 13, 1983
    Inventor: David D. Sobel
  • Patent number: 4157624
    Abstract: In a picture frame, a portion of one of the side sections thereof is bent and is notched in order to provide means for supporting the picture frame on a nail that is driven into a wall surface. The bent portion of the frame section may be formed during an extrusion process or an extruded frame section may have a portion thereof bent as a separate step. The present invention comprises an improved picture frame as well as the method for making same.
    Type: Grant
    Filed: February 7, 1977
    Date of Patent: June 12, 1979
    Inventor: David D. Sobel
  • Patent number: D293124
    Type: Grant
    Filed: April 19, 1985
    Date of Patent: December 8, 1987
    Inventor: David D. Sobel