3m Innovative Properties Company

David Cook

Ian Thomas Petherbridge

Raymond Odell

Thomas I Insley

David M Blomberg

Pierre Legare

James R Betz

Kenneth J Krepel

Derek S Baker

Benjamin J Cullen

Michael R Bennett

Robert P Lapointe

A method and apparatus for calibrating the air flow in a respirator system is provided. The method provides for the establishment of control set points in a true calibration protocol through the simple triggering of the microprocessor of a controller. When the trigger is initiated, the microprocessor engages and provides the logic for the calibration cycle. The calibration cycle proceeds until a second trigger terminates the process and establishes the control set points. The calibration sequence of the method relies only on an initiation and termination trigger that is facilitated by components integral to the apparatus.

Method and system of calibrating air flow in a respirator system

Pair of filter cartridges for a powered air-purifying respirator

The present invention relates to a fan-forced positive pressure breathing apparatus commonly known as a Powered Air Purifying Respirators (PAPR) system, and specifically concerns the connecting of the breathing components of such equipment. The invention is a method and apparatus for rapid engagement of PAPR breathing components (such as air supply lines and filter elements to a blower housing). The invention also provides for indicating and/or monitoring whether the relative components have been aligned and coupled in sealed engagement.

Apparatus and method for breathing apparatus component coupling

Cover for a filter cartridge

Battery

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Bracknell, United Kingdom

David Cook