Patents by Inventor Gilbert A. Brassell

Gilbert A. Brassell 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: 6948391
    Abstract: A probe with an integral filtered vent and sampling port has a hollow shaft configured as a drill bit which in use passes through the lid of a drum containing waste products within a liner. The hollow shaft has a penetrating tip and at lest two radial bores, one of which is positioned to open to the space within the liner and the other of which is positioned to open to the space above the liner and between the liner and drum lid. The shaft has a head with a pocket which contains a filter element, the head also having a radial sampling port with a septa seal. In order to sample head space gases, a hypodermic needle is pushed through the septa seal into the longitudinal bore of the hollow shaft, and then withdrawn, allowing the septa seal to close behind the needle. The probe is especially useful for sampling nuclear waste stored within drums having liners.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: September 27, 2005
    Assignee: Nuclear Filter Technology
    Inventors: Gilbert Brassell, Terry J. Wickland, Darold M. Popish
  • Patent number: 6935199
    Abstract: A headspace gas sampling and venting method utilizes a vent port and a sampling port which are punched through the lid of a drum containing hazardous materials, such as transuranic waste. In accordance with the system, a punch having a hollow passage therethrough, which passage has a filter element therein is first inserted through the lid using a pneumatic gun. A second punch, similar to the first punch, but having a passage with a septa seal therein is thereafter inserted through the lid with the pneumatic gun. Headspace gas beneath the lid is then sampled with a needle inserted through the septa seal. Both the venting port and sampling port are configured with detachable punch points which pass through the lid and are then released from the venting and sampling ports so as to open ends of the passages therethrough for communication with the headspace.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: August 30, 2005
    Assignee: Nuclear Filter Technology, Inc.
    Inventors: Terry J. Wickland, Darold M. Popish, Gilbert Brassell, Fred L. Popish, Mark A. Castagneri, Michael D. Peterson
  • Publication number: 20040182181
    Abstract: A probe with an integral filtered vent and sampling port has a hollow shaft configured as a drill bit which in use passes through the lid of a drum containing waste products within a liner. The hollow shaft has a penetrating tip and at lest two radial bores, one of which is positioned to open to the space within the liner and the other of which is positioned to open to the space above the liner and between the liner and drum lid. The shaft has a head with a pocket which contains a filter element, the head also having a radial sampling port with a septa seal. In order to sample head space gases, a hypodermic needle is pushed through the septa seal into the longitudinal bore of the hollow shaft, and then withdrawn, allowing the septa seal to close behind the needle. The probe is especially useful for sampling nuclear waste stored within drums having liners.
    Type: Application
    Filed: March 21, 2003
    Publication date: September 23, 2004
    Applicant: NUCLEAR FILTER TECHNOLOGY
    Inventors: Gilbert Brassell, Terry J. Wickland, Darold M. Popish
  • Publication number: 20030101830
    Abstract: A headspace gas sampling and venting method utilizes a vent port and a sampling port which are punched through the lid of a drum containing hazardous materials, such as transuranic waste. In accordance with the system, a punch having a hollow passage therethrough, which passage has a filter element therein is first inserted through the lid using a pneumatic gun. A second punch, similar to the first punch, but having a passage with a septa seal therein is thereafter inserted through the lid with the pneumatic gun. Headspace gas beneath the lid is then sampled with a needle inserted through the septa seal. Both the venting port and sampling port are configured with detachable punch points which pass through the lid and are then released from the venting and sampling ports so as to open ends of the passages therethrough for communication with the headspace.
    Type: Application
    Filed: November 20, 2002
    Publication date: June 5, 2003
    Inventors: Terry J. Wickland, Darold M. Popish, Gilbert Brassell, Fred L. Popish, Mark A. Castagneri, Michael D. Peterson
  • Patent number: 6557428
    Abstract: A headspace gas sampling and venting method utilizes a vent port and a sampling port which are punched through the lid of a drum containing hazardous materials, such as transuranic waste. In accordance with the system, a punch having a hollow passage therethrough, which passage has a filter element therein is first inserted through the lid using a pneumatic gun. A second punch, similar to the first punch, but having a passage with a septa seal therein is thereafter inserted through the lid with the pneumatic gun. Headspace gas beneath the lid is then sampled with a needle inserted through the septa seal. Both the venting port and sampling port are configured with detachable punch points which pass through the lid and are then released from the venting and sampling ports so as to open ends of the passages therethrough for communication with the headspace.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: May 6, 2003
    Assignee: Nuclear Filter Technology, Inc.
    Inventors: Terry J. Wickland, Darold M. Popish, Gilbert Brassell, Fred L. Popish, Mark A. Castagneri, Michael D. Peterson
  • Publication number: 20030029255
    Abstract: A headspace gas sampling and venting method utilizes a vent port and a sampling port which are punched through the lid of a drum containing hazardous materials, such as transuranic waste. In accordance with the system, a punch having a hollow passage therethrough, which passage has a filter element therein is first inserted through the lid using a pneumatic gun. A second punch, similar to the first punch, but having a passage with a septa seal therein is thereafter inserted through the lid with the pneumatic gun. Headspace gas beneath the lid is then sampled with a needle inserted through the septa seal. Both the venting port and sampling port are configured with detachable punch points which pass through the lid and are then released from the venting and sampling ports so as to open ends of the passages therethrough for communication with the headspace.
    Type: Application
    Filed: August 7, 2001
    Publication date: February 13, 2003
    Inventors: Terry J. Wickland, Darold M. Popish, Gilbert Brassell, Fred L. Popish, Mark A. Castagneri, Michael D. Peterson
  • Patent number: 6395050
    Abstract: Vent filters for containers such as barrels which contain hazardous waste, such as transuranic (nuclear) waste, include a bore therethrough which does not intersect the material of carbon-to-carbon filter media inserts disposed within the vent filter. Each of the bores has a stainless steel tube disposed therein wherein the stainless steel tube has at an interior end a septa-type seal and at an outer end an impenetrable plug. In order to sample head gases, a syringe is used with a needle that penetrates the septa-type seal. After the needle is withdrawn, the septa-type seal closes and the impenetrable plug is replaced.
    Type: Grant
    Filed: October 5, 2000
    Date of Patent: May 28, 2002
    Assignee: Nuclear Filter Technology, Inc.
    Inventors: Terry J. Wickland, Michael D. Peterson, David E. Joseffy, Gilbert A. Brassell