Patents by Inventor Dianne M. Dougherty

Dianne M. Dougherty 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: 6003666
    Abstract: A hazardous material and shipment system (kit) includes a containment box, a closeable bottle, a unitary foam positioning body, and an absorbent sleeve. The unitary positioning body is positioned within the containment box and is provided with an aperture. The closeable bottle has a screw cap, is made from a material compatible with the hazardous material, and fits within the aperture of the positioning body. An optional removable top member covers the aperture to secure the bottle therein. The bottle is preferably a part of a bottle assembly including a sealing tape, the absorbent sleeve, and a plastic bag, which provide multiple containments for liquid leaks and spills. A method for containing hazardous materials includes placing a desired amount of the hazardous material in a bottle body having a threaded neck and then engaging a screw cap with the threaded neck to provide a closed bottle with the hazardous material inside.
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: December 21, 1999
    Assignee: ChemTrace Corporation
    Inventor: Dianne M. Dougherty
  • Patent number: 5996424
    Abstract: A low contamination bottle for sampling, storing, and transporting of chemical samples includes a bottle portion defining an internal volume and having a threaded neck, and a cap portion provided with threads that engage the threaded neck of the bottle to provide a fluid-tight seal between the internal volume of the bottle and the ambient environment. The bottle has a flexible sidewall portion that permits the reduction of the internal volume to allow a liquid sample to be drawn into the bottle portion by a suction or vacuum process. Both the bottle portion and the cap portion are made from a material selected from the chemical resistant group consisting essentially of hydrocarbon polymers and fluorocarbon polymers, where the material generates less then 1 ppb of metal contaminants and 1 ppm of leachable anionic and organic contaminants. The flexible sidewall portion of the bottle portion has a minimum thickness of 0.
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: December 7, 1999
    Assignee: ChemTrace Corporation
    Inventors: Samantha S. H. Tan, Dianne M. Dougherty
  • Patent number: 5804744
    Abstract: A low contamination bottle for sampling, storing, and transporting of chemical samples includes a bottle portion defining an internal volume and having a threaded neck, and a cap portion provided with threads that engage the threaded neck of the bottle to provide a fluid-tight seal between the internal volume of the bottle and the ambient environment. The bottle has a flexible sidewall portion that permits the reduction of the internal volume to allow a liquid sample to be drawn into the bottle portion by a suction or vacuum process. Both the bottle portion and the cap portion are made from a material selected from the chemical resistant group consisting essentially of hydrocarbon polymers and fluorocarbon polymers, where the material generates less then 1 ppb of metal contaminants and 1 ppm of leachable anionic and organic contaminants. The flexible sidewall portion of the bottle portion has a minimum thickness of 0.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: September 8, 1998
    Assignee: Chemtrace
    Inventors: Samantha S. H. Tan, Dianne M. Dougherty