Patents by Inventor John E. Zust

John E. Zust 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: 4505304
    Abstract: A weft cutting device designated generally as (A) is disclosed for cutting a waste tape from the selvage of fabric being woven on a shuttleless loom. The cutting device includes a base (10) which pivotably carries a pivoting mechanism (24) having a cantilevered arm (28) in engagement with a protective cover (30) of a reed (32). As the reed oscillates back and forth during beat-up of the fabric on the loom, the arm is reciprocated. A blade carrier assembly (34) is attached to the pivoting arm mechanism and includes a blade holding means (38) which holds a square cutting element (B). The cutting element is four-sided and includes four cutting edges (62). An identical cutting element (B') provides a complementary cutting surface (55) against which the blade element strikes during cutting. The blade elements (B) and (B') are interchangeable with each other such that eight cutting edges are provided.
    Type: Grant
    Filed: March 3, 1983
    Date of Patent: March 19, 1985
    Inventor: John E. Zust
  • Patent number: 4352471
    Abstract: A thread tensioning device includes spaced first and second thread passages A and B between which a brake member 18 is carried and a thread tensioning cylinder 28 is carried between the second thread passage and a third thread passage C whose position relative to the second passage means is variable to vary the extent of thread contact with the tensioning cylinder 28. In the event of machine stoppage, thread brake 18 holds the yarn against seat 16 to maintain thread taut about cylinder 28 to avoid thread breakage upon start-up.
    Type: Grant
    Filed: May 13, 1981
    Date of Patent: October 5, 1982
    Inventor: John E. Zust