Patents by Inventor Robert G. Donovan

Robert G. Donovan 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: 4659109
    Abstract: A binder for multi-leafed devices has a pair of spaced brackets each of which has a plurality of prongs extending toward the other bracket. The prongs of one bracket are longer than those of the other bracket and are spaced so as to permit the prongs to be inserted into a multi-leafed device. A stop member is swingably mounted adjacent the bracket with the longer prongs for engaging the prongs and preventing inadvertent release of the multi-leafed device. The stop member is locked in operative position by a projection thereon snugly received in a recess formed in a portion fixed relative to the binder. A folder is provided with a notch therein permitting one of the shorter prongs to be inserted within the folder even though the folder is of greater length than conventional multi-leafed devices used with the binder. The folder defines a first pair of open-ended pockets, a pair of integral flaps on the folder overlying the open ends of the pocket.
    Type: Grant
    Filed: January 21, 1986
    Date of Patent: April 21, 1987
    Inventor: Robert G. Donovan
  • Patent number: 3950012
    Abstract: The retainer device is used for storage of multi-leafed devices such as magazines, pamphlets, notebooks and the like. Spaced apart brackets are provided either in a binder or secured to a stationary support surface. A plurality of spaced apart relatively long prongs extend from one bracket. A plurality of spaced apart shorter prongs extend from the other bracket. A multi-leafed device is stored in the retainer by first inserting the longer prongs into the center of the leaves until the opposite end of the device clears the shorter prongs. The device is then moved so that the shorter prongs are also inserted thereinto. The longer length of the first set of prongs permits this shifting action without disengaging the longer prongs.
    Type: Grant
    Filed: March 17, 1975
    Date of Patent: April 13, 1976
    Inventor: Robert G. Donovan