Patents by Inventor Howard J. Hamilton

Howard J. Hamilton 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: 4010709
    Abstract: Following conventional pretreatment and background dyeing and washing of a carpet web, an applicator means applies a thick viscous gum coating to the pile face of the web, forming a temporary barrier thereon. Conveyor means is provided to transport the coated carpet web horizontally through a liquid dye dripping or splattering station where multiple interrupted syrupy dye streams fall on the temporary barrier and form thereon dye pools and rivulets of irregular shape, size and spacing. The conveyor means continues to transport the carpet web with the barrier coating and dye thereon horizontally into a steamer where the barrier layer dissolves and settles into the carpet pile with the dye to establish a random irregular color pattern. Fixing of the dye also takes place in the steamer. The apparatus has final washing and drying means of a conventional character beyond the steamer. Pin driving rolls for the carpet web are electrically coordinated to maintain a regulated tension on the web at all times.
    Type: Grant
    Filed: January 28, 1976
    Date of Patent: March 8, 1977
    Assignee: Shaw Industries, Inc.
    Inventors: Robert W. Sayman, John S. Quarles, Howard J. Hamilton