skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Grooved impactor and inertial trap for sampling inhalable particulate matter

Abstract

An inertial trap and grooved impactor for providing a sharp cutoff for particles over 15 microns from entering an inhalable particulate sampler. 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.

Inventors:
 [1]
  1. (Oakland, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
865027
Patent Number(s):
4452068
Assignee:
United States of America as represented by United States (Washington, DC) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
grooved; impactor; inertial; trap; sampling; inhalable; particulate; matter; providing; sharp; cutoff; particles; 15; microns; entering; sampler; head; tapered; surface; provided; v-shaped; grooves; functions; reducing; particle; blow-off; reentrainment; prevent; bounce; water; droplets; resuspended; material; micron; size; collected; deposited; reservoir; associated; tapered surface; particulate matter; reducing particle; water droplets; micron size; v-shaped grooves; sharp cutoff; inertial trap; grooved impactor; inhalable particulate; v-shaped groove; prevent particle; /73/

Citation Formats

Loo, Billy W. Grooved impactor and inertial trap for sampling inhalable particulate matter. United States: N. p., 1984. Web.
Loo, Billy W. Grooved impactor and inertial trap for sampling inhalable particulate matter. United States.
Loo, Billy W. Sun . "Grooved impactor and inertial trap for sampling inhalable particulate matter". United States. https://www.osti.gov/servlets/purl/865027.
@article{osti_865027,
title = {Grooved impactor and inertial trap for sampling inhalable particulate matter},
author = {Loo, Billy W.},
abstractNote = {An inertial trap and grooved impactor for providing a sharp cutoff for particles over 15 microns from entering an inhalable particulate sampler. 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {1}
}

Patent:

Save / Share: