Patents by Inventor Geoffrey D. Field

Geoffrey D. Field 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: 4193705
    Abstract: A suspension device for vertical suspension of sheets, such as drawing sheets, which includes two substantially parallel bars; a number of pins on each bar, each pin being connected at one end to its bar with its free end directed to the other bar, the pins being adapted to be inserted through holes provided along edges of sheets so that the sheets can suspend from the pins; locating means provided on each bar for locating the free ends of the pins relative to the other bar; and locking means for releasably holding the two bars in a locked position in which the free ends of the pins are located in the associated locating means.
    Type: Grant
    Filed: August 29, 1977
    Date of Patent: March 18, 1980
    Inventor: Geoffrey D. Field