Patents by Inventor Ronald D. Ten Elshof

Ronald D. Ten Elshof 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: 4222542
    Abstract: A bracket for attaching a component to a slotted upright, which bracket includes one or more conventional downwardly-opening L-shaped hooks adapted for engagement with the slots of the upright. The bracket includes an integral locking element which is sufficiently resilient to snap into one of the slots when the bracket is properly seated to thereby indicate proper engagement of the bracket on the upright, and simultaneously prevent upward lifting of the bracket relative to the upright. The locking element comprises a vertically elongated cantilever spring having a slot-engaging projection at the outer end thereof. The locking element is integral with the bracket and formed of the same platelike material so as to be stiff yet slightly resilient, thereby ensuring positive seating of the locking projection within the slot when the bracket is properly seated on the upright.
    Type: Grant
    Filed: November 27, 1978
    Date of Patent: September 16, 1980
    Assignee: Haworth Mfg., Inc.
    Inventors: Harold R. Wilson, Ronald D. Ten Elshof
  • Patent number: 4198913
    Abstract: An attachment structure for mounting a furniture component, such as a work surface member, on the slotted uprights of a wall panel. The attachment structure is releasably engageable with both the slotted upright and the work surface member, such as a desk top. A hook-carrying support is releasably attached to the upright, and the support in turn has the work surface member releasably attached thereto. A latching device, as mounted on the support, automatically engages the slotted upright to fixedly lock the support thereto only when the work surface member is mounted on and properly engaged with the support. The latching device also causes the front edge of the work surface member to be locked down against the support.
    Type: Grant
    Filed: May 26, 1978
    Date of Patent: April 22, 1980
    Assignee: Haworth Mfg., Inc.
    Inventors: Richard G. Haworth, Ronald D. Ten Elshof