Patents by Inventor Audra A. Conlan

Audra A. Conlan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of making a filter cartridge using a thermoforming step
    Patent number: 7497217
    Abstract: 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.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: March 3, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Andrew S. Viner, Audra A. Conlan, Brian Cormack, Malcolm R. Watson, Christopher P. Henderson, Desmond T. Curran, Elfed I. Williams
  • Method of making a filter cartridge that uses thermoforming step
    Publication number: 20050161045
    Abstract: 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.
    Type: Application
    Filed: March 23, 2005
    Publication date: July 28, 2005
    Inventors: Andrew Viner, Audra Conlan, Brian Cormack, Malcolm Watson, Christopher Henderson, Desmond Curran, Elfed Williams
  • Filter element that has a thermo-formed housing around filter material
    Patent number: 6874499
    Abstract: A filter cartridge (5), suitable for attachment to a respiratory mask, has a housing that includes an air inlet (27), an air outlet (39), and filter material (17, 19) through which air to be filtered travels through when passing from the inlet to the outlet. At least part of the housing includes a sheet material (23) that is thermo-formed around the sides of the filter material.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: April 5, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Andrew S. Viner, Audra A. Conlan, Brian Cormack, Malcolm R. Watson, Christopher P. Henderson, Desmond T. Curran, Elfed I. Williams
  • Filter element that has a thermo-formed housing around filter material
    Publication number: 20040055604
    Abstract: A filter cartridge (5), suitable for attachment to a respiratory mask, has a housing that includes an air inlet (27), an air outlet (39), and filter material (17, 19) through which air to be filtered travels through when passing from the inlet to the outlet. At least part of the housing includes a sheet material (23) that is thermo-formed around the sides of the filter material.
    Type: Application
    Filed: September 23, 2002
    Publication date: March 25, 2004
    Inventors: Andrew S. Viner, Audra A. Conlan, Brian Cormack, Malcolm R. Watson, Christopher P. Henderson, Desmond T. Curran, Elfed I. Williams
  • Faceshield attachment
    Patent number: D489449
    Type: Grant
    Filed: January 3, 2003
    Date of Patent: May 4, 2004
    Assignee: 3M Innovative Properties Company
    Inventor: Audra A. Conlan