Patents by Inventor David Owen Bird

David Owen Bird 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).

  • Apparatus and process for converting a continuous multifilament yarn to a staple-like yarn
    Patent number: 4674271
    Abstract: The present invention pertains to a process and product thereof, and an apparatus, for converting a twisted, continuous filament, multifilament yarn into a staple-like yarn. The process is carried out by needling the yarn with a barbed needle in order to break yarn filaments. The broken yarn filaments protrude from the yarn after the needling process. The protruding filament ends give the resulting yarn the appearance of a spun yarn.
    Type: Grant
    Filed: June 16, 1986
    Date of Patent: June 23, 1987
    Assignee: BASF Corporation
    Inventor: David Owen Bird