Michael Lee Parham

US Patent:

7860662, Dec 28, 2010

Filed:

Dec 17, 2008

Appl. No.:

12/336920

Inventors:

Michael Parham - Matthews NC, US
Yuquing Ding - Charlotte NC, US

Assignee:

Scott Technologies, Inc. - Boca Raton FL

International Classification:

G01B 3/44

US Classification:

702 34, 96117, 12820222, 210741

Abstract:

A method for determining a service life for a filter includes measuring exposure data and calculating a service life estimate based on the exposure data. The service life estimate is representative of an estimated exposure time that the filter is exposed to ambient conditions represented by the exposure data before the contaminant passes through the filter at a breakthrough concentration. The method also includes obtaining environmental data and establishing a predicted service life based on the environmental data. The predicted service life is representative of a predicted exposure time that the filter is exposed to the ambient conditions represented by the environmental data before the contaminant passes through the filter at the breakthrough concentration. The method further includes determining the service life for the filter based on a comparison of the estimated and predicted service lives.

US Patent:

8328903, Dec 11, 2012

Filed:

Jul 22, 2008

Appl. No.:

12/177358

Inventors:

Michael Parham - Matthews NC, US
Amy Staubs - Matthews NC, US
Yuqing Ding - Charlotte NC, US

Assignee:

Scott Technologies, Inc. - Boca Raton FL

International Classification:

B01D 46/46

US Classification:

95 8

Abstract:

A method for determining at least one of an effluent concentration profile, a breakthrough time and a filter cartridge recommendation includes receiving at least one input parameter, determining at least one of the effluent concentration profile, the breakthrough time and the filter cartridge recommendation based on the input parameter, and graphically displaying at least one of the effluent concentration profile, the breakthrough time, and the filter cartridge recommendation. The effluent concentration profile includes a plot of a concentration of a chemical species over a period of time. The breakthrough time includes a time at which a predetermined concentration of the chemical species passes through a filter cartridge.

US Patent:

8402966, Mar 26, 2013

Filed:

Sep 23, 2009

Appl. No.:

12/564978

Inventors:

Amy Elizabeth Staubs - Matthews NC, US
Michael Parham - Matthews NC, US
Sioned Owens - Denbigshire, GB
Sean Austerbery - Denbigshire, GB
Gareth Roberts - Wrexham, GB
Troy Alan Baker - Denbigshire, GB

Assignee:

Scott Technologies, Inc. - Boca Raton FL

International Classification:

A62B 23/02
A62B 7/10
A62B 18/08

US Classification:

12820125, 12820122, 12820024, 12820527, 12820529

Abstract:

A filter mask includes an oronasal cup, an inhalation directional cover, and an exhalation diverter body. The oronasal cup encloses a nose and mouth of a user. The oronasal cup is fluidly coupled with a filter. The inhalation directional cover is configured to be joined to the filter. The inhalation directional cover includes an elongated wing portion that is oriented in an inhalation direction that is angled with respect to the center axis of the filter. The exhalation diverter body is fluidly coupled with the oronasal cup. The exhalation diverter body defines an exhalation duct that directs exhaled air out of the oronasal cup along an exhalation direction. The inhalation direction and the exhalation direction are oriented away from a plane of interaction between the user and another person.

US Patent:

20130146052, Jun 13, 2013

Filed:

Feb 6, 2013

Appl. No.:

13/760298

Inventors:

Scott Technologies, Inc. - Monroe NC, US
Amy E. Quiring - Matthews NC, US
Michael Parham - Weddington NC, US

Assignee:

Scott Technologies, Inc. - Monroe NC

International Classification:

B01D 46/00
A62B 9/02
A62B 7/10
A62B 18/10
A62B 18/02
A62B 19/00
A62B 9/00
A62B 18/08
A62B 23/02

US Classification:

12820222, 961175, 96 4

Abstract:

A sensor device is disclosed for providing end of service life indication for an air purification filter. The sensor device has a cylindrical housing for insertion into a sorbent bed of a filter, and can be removed from the bed and reused at the end of the filter service. One or more sensors inside the housing are configured to sense physical/chemical characteristics of air passing through the sorbent bed, and to provide associated data to a sensor conditioning board within the housing. The sensor conditioning board processes the received data and conditions the data as desired. The housing is receivable in a cavity formed in the filter bed. A receiving structure receives the housing therein. Data from the one or more sensors can be used to calculate predicted end of service life of the filter. Other embodiments are described and claimed.

US Patent:

20130298774, Nov 14, 2013

Filed:

Jul 18, 2013

Appl. No.:

13/945040

Inventors:

Edward Powers Simmonds - Indian Trail NC, US
Michael Lee Parham - Weddington NC, US

International Classification:

B01D 53/04

US Classification:

961175, 96108, 96121, 96129, 96134

Abstract:

A conformal filter is disclosed having a plurality of sorbent beds oriented perpendicular to an inner side surface of the filter which conforms to an adjacent surface, such as a wearer's face when attached to a respirator. The inner side of the filter may approximate the curved shape of an interfacing surface. Because the sorbent beds are oriented perpendicular to the inner side surface, a conformal configuration can be achieved without bending the sorbent beds and while keeping constant bed residence time throughout the entire cross-sectional area of the air flow, thus enforcing even air distribution. Reduced bed depth is also achieved through this configuration which consequently reduces the overall pressure drop through the filter. Other embodiments are described and claimed.

US Patent:

20200179859, Jun 11, 2020

Filed:

Feb 3, 2020

Appl. No.:

16/780025

Inventors:

- Boca Raton FL, US
Amy E. QUIRING - Matthews NC, US
Michael PARHAM - Weddington NC, US

International Classification:

B01D 46/00
B01D 53/22
B01D 53/02
A62B 23/02
A62B 19/00
A62B 18/10
A62B 18/08
A62B 18/02
A62B 9/02
A62B 9/00
A62B 7/10
B01D 53/04
B01D 46/46
B01D 46/44
B01D 46/42
B01D 46/24

Abstract:

A sensor device is disclosed for providing end of service life indication for an air purification filter. The sensor device has a cylindrical housing for insertion into a sorbent bed of a filter, and can be removed from the bed and reused at the end of the filter service. One or more sensors inside the housing are configured to sense physical/chemical characteristics of air passing through the sorbent bed, and to provide associated data to a sensor conditioning board within the housing. The sensor conditioning board processes the received data and conditions the data as desired. The housing is receivable in a cavity formed in the filter bed. A receiving structure receives the housing therein. Data from the one or more sensors can be used to calculate predicted end of service life of the filter. Other embodiments are described and claimed.

US Patent:

20200155878, May 21, 2020

Filed:

Jan 28, 2020

Appl. No.:

16/774395

Inventors:

- Boca Raton FL, US
Robert Charles SUTTON - Merseyside, GB
Amy Elizabeth QUIRING - Matthews NC, US
Michael PARHAM - Weddington NC, US

International Classification:

A62B 23/02
A62B 18/02
A62B 9/00
A62B 18/08
A62B 18/10
B23P 6/00

Abstract:

A half facepiece respirator has a shaped support piece supporting and fixing the position of a particle or paper filter insert or outsert with either the support piece or the particle filter incorporating a face sealing component. Placed within the shaped support piece, a grille may be placed in the lower section of the shaped support piece. Additionally the half facepiece includes a head harness having a release mechanism.

US Patent:

20190255370, Aug 22, 2019

Filed:

May 2, 2019

Appl. No.:

16/402041

Inventors:

- Monroe NC, US
Robert Charles Sutton - Merseyside, GB
Amy Elizabeth Quiring - Matthews NC, US
Michael Parham - Weddington NC, US

International Classification:

A62B 23/02
B23P 6/00
A62B 18/10
A62B 18/08
A62B 9/00
A62B 18/02

Abstract:

A half facepiece respirator has a shaped support piece supporting and fixing the position of a particle or paper filter insert or outsert with either the support piece or the particle filter incorporating a face sealing component. Placed within the shaped support piece, a grille may be placed in the lower section of the shaped support piece. Additionally the half facepiece includes a head harness having a release mechanism.