Fluid sampler and gas flow control system and method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 6, 1985
Grant Date -
N/A
app pub date -
Jul 12, 1983
filing date -
Jul 12, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The fluid Sampler is used to sample gases in a collecting device and includes a flow control valve having a manually adjustable flow restricting orifice and a vacuum pump for drawing gas from the atmosphere through the collecting device and flow control valve to form therethrough a primary flow path. A flow controller is used to supply a supplemental flow of gas taken from the discharge end of the vacuum pump and supplied to the suction end of the vacuum pump in response to the differential in pressure across the flow control valve. The supplementary flow rate is automatically adjusted to maintain the differential in pressure constant.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully