Polyport atmospheric gas sampler
Patent
·
OSTI ID:869823
- Teaneck, NJ
An atmospheric gas sampler with a multi-port valve which allows for multi, sequential sampling of air through a plurality of gas sampling tubes mounted in corresponding gas inlet ports. The gas sampler comprises a flow-through housing which defines a sampling chamber and includes a gas outlet port to accommodate a flow of gases through the housing. An apertured sample support plate defining the inlet ports extends across and encloses the sampling chamber and supports gas sampling tubes which depend into the sampling chamber and are secured across each of the inlet ports of the sample support plate in a flow-through relation to the flow of gases through the housing during sampling operations. A normally closed stopper means mounted on the sample support plate and operatively associated with each of the inlet ports blocks the flow of gases through the respective gas sampling tubes. A camming mechanism mounted on the sample support plate is adapted to rotate under and selectively lift open the stopper spring to accommodate a predetermined flow of gas through the respective gas sampling tubes when air is drawn from the housing through the outlet port.
- Research Organization:
- EML
- Assignee:
- United States of America as represented by Department of Energy (Washington, DC)
- Patent Number(s):
- US 5404763
- OSTI ID:
- 869823
- Country of Publication:
- United States
- Language:
- English
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accommodate
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blocks
camming
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comprises
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defines
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polyport
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predetermined
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sampler comprises
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sampling tube
secured
selectively
sequential
spring
stopper
support
support plate
supports
tubes
valve
accommodate
adapted
air
allows
apertured
associated
atmospheric
atmospheric gas
blocks
camming
chamber
closed
comprises
corresponding
corresponding gas
defines
defining
depend
drawn
encloses
extends
flow
flow-through
gas
gas inlet
gas outlet
gas sample
gas sampler
gas sampling
gases
housing
inlet
inlet ports
lift
means
means mounted
mechanism
mounted
multi
multi-port
multi-port valve
normally
normally close
normally closed
operations
operatively
operatively associated
outlet
plate
plurality
polyport
ports
predetermined
predetermined flow
relation
respective
respective gas
rotate
sample
sampler
sampler comprises
sampling
sampling chamber
sampling tube
secured
selectively
sequential
spring
stopper
support
support plate
supports
tubes
valve