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gases, a hypodermic needle is pushed through the septa seal into the longitudinal bore of the hollow shaft, and then withdrawn, allowing the septa seal to close behind the needle.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
Abstract: A stainless steel filter assembly which filters fluid entering a fluid interactive device, such as a gas analyzer, includes a connection block in the line which has lateral ports for coupling with an inlet coupling and an outlet coupling on a filter. The filter has a folded filter media made of sintered stainless steel panels which are separated by stainless steel screens that increase the surface area of the filter media exposed to the inlet stream of fluid to be filtered.
Type:
Grant
Filed:
September 5, 2002
Date of Patent:
June 28, 2005
Assignee:
Nuclear Filter Technology
Inventors:
Michael D. Peterson, Darold M. Popish, Terry J. Wickland, Craig Washburn
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gases, a hypodermic needle is pushed through the septa seal into the longitudinal bore of the hollow shaft, and then withdrawn, allowing the septa seal to close behind the needle.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
Abstract: A stainless steel filter assembly which filters fluid entering a fluid interactive device, such as a gas analyzer, includes a connection block in the line which has lateral ports for coupling with an inlet coupling and an outlet coupling on a filter. The filter has a folded filter media made of sintered stainless steel panels which are separated by stainless steel screens that increase the surface area of the filter media exposed to the inlet stream of fluid to be filtered.
Type:
Application
Filed:
September 5, 2002
Publication date:
March 11, 2004
Applicant:
NUCLEAR FILTER TECHNOLOGY
Inventors:
Michael D. Peterson, Darold M. Popish, Terry J. Wickland, Craig Washburn