David J Dolezal

US Patent:

D571457, Jun 17, 2008

Filed:

Sep 29, 2005

Appl. No.:

29/239438

Inventors:

David M. Dolezal - Edina MN, US
John D. Wilder - Brooklyn Park MN, US
Daniel M. Gelfman - Minnetonka MN, US

Assignee:

Dolezal Creative Innovations, LLC - Edina MN

International Classification:

2902

US Classification:

D24106, D24110

US Patent:

D572360, Jul 1, 2008

Filed:

Sep 29, 2005

Appl. No.:

29/239439

Inventors:

David M. Dolezal - Edina MN, US
John D. Wilder - Brooklyn Park MN, US
Daniel M. Gelfman - Minnetonka MN, US

Assignee:

Dolezal Creative Innovations, LLC - Edina MN

International Classification:

2902

US Classification:

D24106, D24110

US Patent:

7918224, Apr 5, 2011

Filed:

Mar 11, 2005

Appl. No.:

11/077784

Inventors:

David M. Dolezal - Edina MN, US
John D. Wilder - Brooklyn Park MN, US
Daniel Gelfman - Minnetonka MN, US

Assignee:

AirWare, Inc. - Scottsdale AZ

International Classification:

A61M 16/00

US Classification:

12820611, 12820527, 12820529, 12820718

Abstract:

A nasal air filtration device includes a pair of either planar or concave-convex filters, a support structure incorporating a pair of generally annular bases or sleeves for supporting the filters, and a bridge that couples the bases or sleeves to maintain them in a desired spaced-apart relation and to determine a desired angular relationship. The support structure is insertable into the nasal cavities to position the filters within corresponding nasal cavities. Flexible rims maintain the support structure and the filters in spaced-apart relation to the surrounding nasal wall. The rims conform to surrounding nasal tissue to form seals. The rims can be selectively inclined to facilitate insertion and resist accidental removal. In certain embodiments the device is combined with a filter that covers the mouth to provide an air filtration system.

US Patent:

7918225, Apr 5, 2011

Filed:

Sep 29, 2005

Appl. No.:

11/238672

Inventors:

David M. Dolezal - Edina MN, US
John D. Wilder - Brooklyn Park MN, US
Daniel M. Gelfman - Minnetonka MN, US

Assignee:

AirWave, Inc. - Scottsdale AZ

International Classification:

A61M 16/00

US Classification:

12820611, 12820527, 12820529, 12820718

Abstract:

A nasal air filtration device includes a pair of either planar or concave-convex filters, a support structure incorporating a pair of generally annular bases or sleeves for supporting the filters, and a bridge that couples the bases or sleeves to maintain them in a desired spaced-apart relation and to determine a desired angular relationship. The support structure is insertable into the nasal cavities to position the filters within corresponding nasal cavities. Flexible rims maintain the support structure and the filters in spaced-apart relation to the surrounding nasal wall. The rims conform to surrounding nasal tissue to form seals. The rims can be selectively inclined to facilitate insertion and resist accidental removal. In certain embodiments the device is combined with a filter that covers the mouth to provide an air filtration system.

US Patent:

20050205095, Sep 22, 2005

Filed:

Mar 19, 2004

Appl. No.:

10/804995

Inventors:

David Dolezal - Edina MN, US
John Wilder - Brooklyn Park MN, US

Assignee:

David M. Dolezal - Edina MN

International Classification:

A62B007/10
A61M016/00

US Classification:

128206110, 128207180

Abstract:

A nasal air filtration device includes a pair of concave-convex filters, and a support structure incorporating a pair of generally annular bases for supporting the filters, and a bridge that couples the bases, to maintain them in a desired spaced-apart relation and to determine a desired angular relationship between the bases and between the associated filters. The support structure is positionable against the anterior nares to direct the filters into their corresponding nasal cavities. The support structure maintains each of the filters in spaced-apart relation to the surrounding nasal wall. In alternative embodiments, an open frame is mounted to each base and positioned between its associated filter and the nasal wall.