Patents by Inventor John A. Szmadzinski

John A. Szmadzinski 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: 5586809
    Abstract: A mechanism is provided for adjusting the height of the backrest relative to a chair seat. The adjustment mechanism for releasably retaining the backrest in a plurality of selected positions relative to a seat permits the chair to be shipped in a "knocked down" condition and easily assembled by the consumer. The adjustment mechanism includes a channel member that is secured to the backrest, and a support member carried by the chair that is slidably received in the channel member and rigidly locked in selected positions. The support member has vertically aligned rack teeth and the backrest has a movable catch having pawls that are adapted to engage the rack teeth. Movement of the catch places the pawls into engagement with the rack teeth to prevent the downward movement of the backrest from a selected vertical position.
    Type: Grant
    Filed: August 4, 1995
    Date of Patent: December 24, 1996
    Assignee: Herman Miller, Inc.
    Inventor: John A. Szmadzinski
  • Patent number: 4550893
    Abstract: A hanger clip (30) for retaining a hanging component (20, 22) to a slotted upright (26) has a generally V-shaped configuration with a plurality of vertically spaced hooks (32, 34, 35) projecting from a rear web (36b) of the clip (30) adapted for engagement with a plurality of slots (27) in the upright (26). The clip (30) includes a biasing means (38, 48) for biasing the plurality of hooks (32, 34, 35) into the slots (27) of the upright (26). The clip (30) may include either a plurality of J-shaped hooks (34) or a spring clip (50) with a locking tab (52) which upon engagement with the slotted upright (26) prevent upward movement of the clip (30) with respect to the upright (26).The clip (30) can be directly secured to a component (20, 22) by fastening a front web (36a) of the clip (30) to an end panel (24 or 24a) of the component (20, 22) with conventional fasteners.
    Type: Grant
    Filed: April 30, 1982
    Date of Patent: November 5, 1985
    Assignee: Herman Miller, Inc.
    Inventors: Delbert Wiersema, John A. Szmadzinski