Patents by Inventor Robin M. Howie

Robin M. Howie 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).

  • Environmental protective garment
    Patent number: 4876746
    Abstract: An environmental protective garment, especially for use in "clean rooms", is an at least partly air resistant garment having suitable body seals and an air mover means for providing a negative pressure within the garment when worn. The exhausted air from the air mover means may be passed through a scrubber or filter. Greater wearer comfort is possible than with known suits.
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: October 31, 1989
    Assignee: Coal Industry (Patents) Limited
    Inventor: Robin M. Howie
  • Helmet
    Patent number: 4852562
    Abstract: A powered respirator helmet comprises a shell, having a passage, between a filter medium, and a fan, mounted in the front peaked part of the helmet shell. An air intake permits air to be drawn by the fan through the filter medium, through the passage and to be exhausted by the fan into the space between a wearer's face and a visor. The helmet is more compact, lighter and less expensive to service than existing respirator helmets, while providing more effective respiratory protection.
    Type: Grant
    Filed: February 22, 1988
    Date of Patent: August 1, 1989
    Assignee: Coal Industry (Patents) Limited
    Inventor: Robin M. Howie