Patents by Inventor Walter H. Dziura

Walter H. Dziura 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: 4882824
    Abstract: Apparatus grips and pulls zipper chain along from supply to a desired finite length, installing slider on the way. When next gap in chain is detected by a finger which inserts itself into gap and abruptly stops further advance of tape, a cutter closes to cut chain to length. Puller is driven by air cylinder, and back pressure is applied soon after puller starts. This reduces pulling force and eliminates tearing of zipper tape as tape is abruptly stopped.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: November 28, 1989
    Assignee: Scovill Fasteners Inc.
    Inventors: Walter H. Dziura, Angelo Fusco, Parviz Khosravi
  • Patent number: 4467907
    Abstract: Fast-dump feeding apparatus includes a hopper having an associated vertical feed chute. The hopper is formed with an openable door at its lower end and the feed chute is bottomed by a shutter. Both door and shutter may be opened to permit rapid evacuation of the hopper and chute. A pusher having a path across the top of the shutter is adapted to push individual fastener parts through a side opening in the chute immediately above the shutter. The pusher includes a pneumatic channel terminating at the front of the pusher to direct a blast of air toward the individual part to assist in moving it away from the chute.
    Type: Grant
    Filed: August 17, 1982
    Date of Patent: August 28, 1984
    Assignee: Scovill Inc.
    Inventors: George R. Snyder, Walter H. Dziura
  • Patent number: 4144738
    Abstract: Toggle action hand-setting tool includes special cam surface on toggle parts to intensify setting pressure during the end of closing travel when greatest mechanical advantage is needed. Readily accessible spring means and special mounting means for fastener-part holders are features. Frame may be designed to yield slightly to avoid breakage which might otherwise result if device is used with oversize fabric.
    Type: Grant
    Filed: October 11, 1977
    Date of Patent: March 20, 1979
    Assignee: Scovill Manufacturing Company
    Inventors: Walter H. Dziura, Robert B. Kendall