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

Patent · Mon Feb 22 23:00:00 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
420200* -- Engineering-- Facilities
Equipment
& Techniques
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOLS
AIR
AIR POLLUTION MONITORS
AIR SAMPLERS
COLLOIDS
DESIGN
DISPERSIONS
EQUIPMENT
FLUIDS
GASES
MEASURING INSTRUMENTS
MONITORS
OPERATION
PARTICLE SIZE
PARTICLES
PARTICULATES
SAMPLERS
SIZE
SOLS