Patents by Inventor Mark J. Griffith

Mark J. Griffith 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: 4759508
    Abstract: An apparatus for crushing small containers, such as vials, containing a scintillation liquid. The apparatus includes a closed housing having a feed opening in the upper end which communicates with a hopper. The lower end of the hopper registers with a pair of cooperating crusher rolls, and the vials fed into the hopper flow downwardly through the rolls which crush or rupture the vials to permit the liquid to be expelled. After crushing, the vials and the liquid pass through a chute and are discharged into an end of a closed vibratory conveyor unit that includes at least one vibrating screen. The liquid passes through the screen and is collected in a container while the crushed vials are conveyed along the screen and are discharged into a collection drum. The apparatus includes a loading basket that is pivoted to a carriage which is slidable on tracks mounted on the outer surface of the housing beneath the inlet opening.
    Type: Grant
    Filed: March 3, 1987
    Date of Patent: July 26, 1988
    Assignee: S & G Enterprises Inc.
    Inventors: Lorin C. Griffith, Mark J. Griffith