Grooved impactor and inertial trap for sampling inhalable particulate matter. [Patents]

Patent · Tue Feb 23 00:00:00 EST 1982

OSTI ID:6644579

Loo, B. W.

An inertial trap and grooved impactor for providing a sharp cutoff for particles over 15 microns from entering an inhalable particulate sampler is disclosed. The impactor head has a tapered surface and is provided with V-shaped grooves. The tapered surface functions for reducing particle blow-off or reentrainment while the grooves prevent particle bounce. Water droplets and any resuspended material over the 15 micron size are collected by the inertial trap and deposited in a reservoir associated with the impactor.

• DOE Contract Number: W-7405-ENG-48
• Assignee: Dept. of Energy
• Patent Number(s): PATENTS-US-A351389
• Application Number: ON: DE83002404
• OSTI ID: 6644579
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
54 ENVIRONMENTAL SCIENCES
AIR
PARTICULATES
AIR POLLUTION MONITORS
AIR SAMPLERS
DESIGN
AEROSOLS
OPERATION
PARTICLE SIZE
COLLOIDS
DISPERSIONS
EQUIPMENT
FLUIDS
GASES
MEASURING INSTRUMENTS
MONITORS
PARTICLES
SAMPLERS
SIZE
SOLS
420200* - Engineering- Facilities
Equipment
& Techniques
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)