Patents by Inventor Erland Wolff

Erland Wolff 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).

  • Stuffing box with outer flexible tube to allow shaft gyratory movements
    Patent number: 4408769
    Abstract: Stuffing box, comprising two hollow annuli spaced apart and adapted to surround a shaft spaced from it, the annuli having annular flanges projecting towards each other. A flexible tube is provided having its opposite ends seating on the annular flanges and secured thereto in gas-tight manner, and a rigid tube is situated within the flexible tube and spaced radially from it and adapted to surround the shaft and to be spaced from it. A radially inwardly extending flange is provided at one end of the rigid tube, together with packing rings within the rigid tube, and a tubular presser member is situated in the other end of the rigid tube. Means is provided for supporting the presser member and urging it into the rigid tube to compress the packing rings against the flange.
    Type: Grant
    Filed: September 21, 1982
    Date of Patent: October 11, 1983
    Assignee: Jude Engineering, Inc.
    Inventor: Erland Wolff