Patents by Inventor David D. Bell

David D. Bell 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: 4768254
    Abstract: A paint scraper for removing paint from wooden or other soft surfaces without damage to such surfaces includes a shaft and a blade oriented at a slightly obtuse angle with respect to the axis of the shaft and a concave deflecting shank extending from a blade support portion to a handle portion for guiding peeling paint away from the vicinity of the blade. The blade is relatively sharp and thin, but is kept from oscillating by the support portion of the shaft which includes a lip which allows attaching parts to prestress the blade so that it remains stiff.
    Type: Grant
    Filed: September 29, 1986
    Date of Patent: September 6, 1988
    Inventor: David D. Bell
  • Patent number: 4564290
    Abstract: A scanning apparatus is provided capable of obtaining image area information from both photograhic films and printing plates. The apparatus includes a scanner assembly carrying two independent light sources for use in the respective plate and film scan operations. The scanner assembly is mounted for movement over a film/plate support surface and carries a columnar sensor array positioned to receive light transmitted through films being scanned. The same sensor array is utilized for receiving light reflected from plates when in the plate scan mode. Optical baffle members are operated by a manual control knob which also controls energization of the appropriate light sources.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: January 14, 1986
    Assignee: Harris Graphics Corporation
    Inventors: David D. Bell, Gary A. Dobson
  • Patent number: D306925
    Type: Grant
    Filed: September 22, 1987
    Date of Patent: March 27, 1990
    Inventor: David D. Bell