Patents by Inventor Ross F. Case

Ross F. Case 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: 4171728
    Abstract: Weighing apparatus including a supporting stand, a balance scale disposed on the supporting stand, the balance scale having a beam pivotally supported on a fulcrum and a weighing receptacle suspended from the beam adjacent one end thereof, powder-supplying means disposed on the supporting stand above the weighing receptacle, unit dispensing means associated with the powder-supplying means, and powder delivery means disposed on the supporting stand below the weighing receptacle; the weighing receptacle including a conical portion tapering to a bottom opening, a conical plug disposed within the opening with the point of the plug extending upwardly toward the powder-supplying means, the powder delivery means including a conical portion tapering downwardly into a cylindrical portion, actuating means disposed adjacent the cylindrical portion and extending upwardly through the conical portion with the upper end thereof bearing against the underside of the conical plug, stop means associated with the actuating means
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: October 23, 1979
    Inventor: Ross F. Case