Hamilton Industries, Inc.

Stephen E Holschbach

Jon A Zboralski

Harry N Grow

A laboratory fume hood with at least two vertically-movable sashes and with a control in the form of a multifunctional sash lock that may be selectively positioned to allow only one sash to be opened at a time, or to permit both sashes to be opened but only partially, or to allow both sashes to be opened fully.

Fume hood with multifunctional sash lock

An auxiliary air fume hood provided with an improved airflow system for controlling the passage of air through an auxiliary air housing and orienting the flow of air in front of the face of the hood. The hood is designed to capture the auxiliary air through the face of the hood when the temperature of said air is as much as 20.degree. F. higher than the room air temperature.

Growing community of inventors

Manitowoc, WI, United States of America

Stephen E Holschbach