Filter element that has a thermo-formed housing around filter material

Method for making a filter cartridge that is suitable for attachment to a respiratory mask. The method comprises the steps of (a) providing a mass of filter material; (b) providing a filter cartridge housing that has an inlet and outlet and a sidewall that includes sheet material; and (c) thermoform...

Full description

Saved in:
Bibliographic Details
Main Authors WILLIAMS ELFED I, CORMACK BRIAN, CONLAN AUDRA A, VINER ANDREW S, HENDERSON CHRISTOPHER P, CURRAN DESMOND T, WATSON MALCOLM R
Format Patent
LanguageEnglish
Published 12.10.2005
Edition7
Subjects
DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
FIRE-FIGHTING
HUMAN NECESSITIES
LIFE-SAVING
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
Online AccessGet full text

Cover

More Information
Summary:Method for making a filter cartridge that is suitable for attachment to a respiratory mask. The method comprises the steps of (a) providing a mass of filter material; (b) providing a filter cartridge housing that has an inlet and outlet and a sidewall that includes sheet material; and (c) thermoforming the sheet material of the housing sidewall around at least part of the mass of filter material to place the housing sidewall in direct contact with the mass of filter material to encapsulate the filter material so that fluid is prevented from passing through the filter cartridge from the inlet to the outlet without being filtered by the mass of filter material.
Bibliography:Application Number: CN20038022426