Patents by Inventor Haydn G. W. Dickenson

Haydn G. W. Dickenson 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: 4969927
    Abstract: A process for the machine-washing of fabrics according to which a dispensing and diffusing device of the reusable type is filled with a particulate product which is active during the washing. This device is placed in the machine together with the fabrics to be washed, and washing is subsequently carried out in the customary way. The device used comprises a flexible bag mounted on a ring made of plastic with helical radial walls providing apertures through the mouth delimited by the ring. A assembly in the form of a cage can be arranged inside the sleeve of the bag in order to maintain the form of the latter during the washing. The product dissolves progressively and little escapes from the device in solid form.
    Type: Grant
    Filed: May 18, 1989
    Date of Patent: November 13, 1990
    Assignee: The Procter & Gamble Company
    Inventors: Karl M. Schumann, Brian E. Talkes, Colin J. Lowery, James R. Lickiss, Malcolm Curtis, Haydn G. W. Dickenson
  • Patent number: 4876023
    Abstract: A laundry product comprising a particulate laundry composition releasably contained within a closed, single- or multi-compartment sachet having a frangible seal, in which the sachet is formed of water-insoluble, calender-bonded or calender-finished, non-woven bonded substrate material. The product combines good storage characteristics with excellent product dissolution characteristics under European and US laundering conditions.
    Type: Grant
    Filed: May 17, 1988
    Date of Patent: October 24, 1989
    Assignee: The Procter & Gamble Company
    Inventors: Haydn G. W. Dickenson, David H. Huntington