Patents by Inventor Fred D. Hall

Fred D. Hall 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).

  • Apparatus And Method For Sampling Of Airborne Asbestos And Other Particles Released From A Surface
    Publication number: 20100242635
    Abstract: A sampling apparatus includes a housing defining a test chamber with an opening for contacting a test surface to expose at least a portion the test surface to the test chamber. A movable agitator within the test chamber contacts the test surface and agitates the test surface to release material from the test surface. The apparatus further includes an inlet and an outlet communicating with the test chamber and defining an air flow path through the chamber. At least one sample cassette may be supported near the outlet to collect a sample from the air flow, including material released from the surface into the test chamber.
    Type: Application
    Filed: June 9, 2010
    Publication date: September 30, 2010
    Applicant: ENVIRONMENTAL QUALITY MANAGEMENT, INC.
    Inventors: John R. Kominsky, Fred D. Hall
  • Apparatus and method for sampling of airborne asbestos and other particles released from a surface
    Patent number: 7758813
    Abstract: A sampling apparatus includes a housing defining a test chamber with an opening for contacting a test surface to expose at least a portion the test surface to the test chamber. A movable agitator within the test chamber contacts the test surface and agitates the test surface to release material from the test surface. The apparatus further includes an inlet and an outlet communicating with the test chamber and defining an air flow path through the chamber. At least one sample cassette may be supported near the outlet to collect a sample from the air flow, including material released from the surface into the test chamber.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: July 20, 2010
    Assignee: Environmental Quality Management, Inc.
    Inventors: John R. Kominsky, Fred D. Hall
  • APPARATUS AND METHOD FOR SAMPLING OF AIRBORNE ASBESTOS AND OTHER PARTICLES RELEASED FROM A SURFACE
    Publication number: 20090169435
    Abstract: A sampling apparatus includes a housing defining a test chamber with an opening for contacting a test surface to expose at least a portion the test surface to the test chamber. A movable agitator within the test chamber contacts the test surface and agitates the test surface to release material from the test surface. The apparatus further includes an inlet and an outlet communicating with the test chamber and defining an air flow path through the chamber. At least one sample cassette may be supported near the outlet to collect a sample from the air flow, including material released from the surface into the test chamber.
    Type: Application
    Filed: December 28, 2007
    Publication date: July 2, 2009
    Applicant: ENVIRONMENTAL QUALITY MANAGEMENT, INC.
    Inventors: John R. Kominsky, Fred D. Hall