Other

Larry Don Robertson

Robert Allen Garrison

An insert for a cassette that is adapted to sample particulate matter in air. The insert has an upstream end that is circular and a downstream end that is flange shaped with substantially smooth walls between the upstream and downstream ends of the insert. The cassette with the insert disposed therein is also described.

MBI bioaerosol vortex cassette

A cassette suitable for the sampling of ambient air to determine if it contains particulate matter made up of an in-port cap that has a detachable tubing extending therefore; an intake cap longitudinally attached to the in-port cap; a cassette insert longitudinally attached to the intake cap on a side thereof opposite to the side of the intake cap attached to the in-port cap; a filter assembly longitudinally proximate to an end of the cassette passageway opposite to the end attached to the intake cap, and in operative relationship with the cassette passageway such that air passing through the cassette passageway must pass through said filter; and air exit means longitudinally attached to the cassette insert and housing the filter assembly, wherein said cassette passageway comprises a substantially circular entry end proximate to said intake cap and an elongated end proximate to said filter assembly; wherein the intake cap has at least one internal passageway communicating with the detachable tubing and communicating with the passageway through the cassette insert, and wherein the exit means has at least one internal passageway that communicates, through the filter assembly, between the insert passageway and the ambient environment.

MBI vortex bioaerosol cassette insert

The disclosure relates to a duct notching template apparatus having slidably positionable and settable end templates and a center template. The end templates have hooked or tabbed edges for engaging the edge of a piece of sheet metal to be scribed for notching. The templates contain windows for viewing the measuring indicia on the longitudinal element on which they are disposed.

Growing community of inventors

Jewett, TX, United States of America

Larry Don Robertson