Patents by Inventor Malcolm L. Johnson

Malcolm L. Johnson 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: 5609267
    Abstract: A corrosion-resistant storage tank for collecting runoff liquids is provided. The storage tank is formed from a plastic and has a bottom; a vertical side wall having at least one aperture, and a removable cap having at least one cap aperture therein and at least one flange positioned in the cap aperture.
    Type: Grant
    Filed: July 26, 1995
    Date of Patent: March 11, 1997
    Assignee: Phillips Petroleum Company
    Inventors: Malcolm L. Johnson, Jimmy J. Lee
  • Patent number: 5039431
    Abstract: There is disclosed a nonwoven wiper comprising a composite web made of a number of interbonded layers of meltblown thermoplastic fibers. The outer layers have average pore sizes greater than 20 microns and preferably greater than 40 microns for rapid pick up of liquid. The internal layers have average pore sizes between 10-20 microns for liquid holding capacity.
    Type: Grant
    Filed: December 19, 1989
    Date of Patent: August 13, 1991
    Assignee: Kimberly-Clark Corporation
    Inventors: Malcolm L. Johnson, Tracey A. Burbank, Mark D. Strickland
  • Patent number: 4904521
    Abstract: There is disclosed a nonwoven wiper comprising a composite web made of a number of interbonded layers of meltblown thermoplastic fibers. The outer layers have average pore sizes greater than 20 microns and preferably greater than 40 microns for rapid pick up of liquid. The internal layers have average pore sizes between 10-20 microns for liquid holding capacity.
    Type: Grant
    Filed: May 26, 1989
    Date of Patent: February 27, 1990
    Assignee: Kimberly-Clark Corporation
    Inventors: Malcolm L. Johnson, Tracey A. Burbank, Mark D. Strickland
  • Patent number: 4904514
    Abstract: A covering for a mechanical linkage comprises a material which is substantially impermeable to both liquid and particle contaminants and conforms to the outer surface of the mechanical linkage. Because the covering conforms to the surface of the mechanical linkage, the covering does not have loose portions that billow and rub together as the mechanical linkage operates. This lessens the possibility of pieces of the covering and contaminating material detaching and falling from the mechanical linkage. The covering also comprises access openings whereby the mechanical linkage can be serviced without removing the entire covering. In a preferred embodiment, the covering comprises a plurality of sections, each section having fasteners for securing the sections about the mechanical linkage. The separate sections can be individually removed and replaced in a relatively short period of time.
    Type: Grant
    Filed: September 13, 1988
    Date of Patent: February 27, 1990
    Assignee: Kimberly-Clark Corporation
    Inventors: Robert A. Morrison, Malcolm L. Johnson
  • Patent number: 4709419
    Abstract: Improved cover garment is disclosed providing an inner garment access option. For applications requiring a high degree of barrierness, openings are not desired, and the garment is used in its original condition. For other applications where it is desired to obtain access to an inner garment, a weakened line is provided adjacent at least one area of the inner garment where access may be desired. By application of stress to the area of the weakened line, the garment material separates providing a hand hole. The material from which the garment is made is preferable a nonwoven fabric containing thermoplastic fibers, and the weakened line is preferably formed by application of heat and pressure. Garments of the invention find applications as cover garments for clean rooms, hospitals and the like.
    Type: Grant
    Filed: August 27, 1984
    Date of Patent: December 1, 1987
    Assignee: Kimberly-Clarke Corporation
    Inventors: Lynn E. Heyn, Malcolm L. Johnson, Danial O. Fischer