Douglas B Mckenna from 2008 Pebble Beach Dr, Elkton, MD 21921, age 65, Phone: 4106206605

Us Patents

Enhanced Carbon Dioxide Adsorbent
view source
US Patent:

7326280, Feb 5, 2008
Filed:

Jan 28, 2005
Appl. No.:

11/045878
Inventors:

Michael B. Hrycak - Middletown DE, US
Douglas B. McKenna - Elkton MD, US
Assignee:

Micropore, Inc. - Newark DE
International Classification:

B01D 53/02
US Classification:

96108, 96154, 12820528
Abstract:

A CO2 removal system including a member having a first opening and a second opening to enable air flow containing carbon dioxide (CO2) to pass from the first opening to the second opening and lithium hydroxide (LiOH) supported by the member and having an initial water content above an anhydrous level. In one embodiment, LiOH adsorbent density is a maximum of approximately 1. 0 g/cm.

Method Of Manufacturing And Using Enhanced Carbon Dioxide Adsorbent
view source
US Patent:

7329307, Feb 12, 2008
Filed:

Jan 28, 2005
Appl. No.:

11/045919
Inventors:

Michael B. Hrycak - Middletown DE, US
Douglas B. McKenna - Elkton MD, US
Assignee:

Micropore, Inc. - Newark DE
International Classification:

B01D 53/02
US Classification:

95139, 12820528
Abstract:

A method of processing carbon dioxide adsorbent for use in a CO2 removal system. The method includes combining a polymer, lithium hydroxide (LiOH), and lubricant that dissolves the polymer to form a first LiOH adsorbent. A structure may be formed using the first LiOH adsorbent. The lubricant may be extracted from the structured LiOH adsorbent using a solvent to form a second LiOH adsorbent. The solvent may be removed from the second LiOH adsorbent to form a third LiOH adsorbent. The third LiOH adsorbent may be hydrated to form a fourth LiOH adsorbent having a water content above an anhydrous level.

Adsorbents And Inhalation Devices
view source
US Patent:

8413655, Apr 9, 2013
Filed:

Jun 10, 2009
Appl. No.:

12/482286
Inventors:

Douglas B. McKenna - Avondale PA, US
Nicholas J. Dunlop - Wilmington DE, US
Assignee:

Micropore, Inc. - Elkton MD
International Classification:

B01D 53/02
B01D 53/14
US Classification:

12820528, 12820512, 12820127, 96139
Abstract:

An adsorbent is described. The adsorbent may include a membrane and an adsorbent material encapsulated within the membrane. An inhalation device is also described. The inhalation device may include a housing and a membrane within the housing. The membrane may encapsulate an adsorbent material. The membrane may be positioned such that airflow through the housing passes across but not through the membrane.

Adsorbent System For Removal Of Gaseous Contaminants
view source
US Patent:

20110206572, Aug 25, 2011
Filed:

Jan 26, 2011
Appl. No.:

13/014259
Inventors:

Douglas B. McKenna - Avondale PA, US
J. Anthony DelNegro - Wilmington DE, US
Thomas Daley - Broomall PA, US
Assignee:

MICROPORE, INC. - Elkton MD
International Classification:

B01D 53/02
B01J 8/02
US Classification:

422211, 96121
Abstract:

This invention relates to an adsorbent system, adsorbent cartridge, and external canister for removing gaseous contaminants from air or another gas.

Adsorbent Cartridge Assembly With End Cap
view source
US Patent:

20120090470, Apr 19, 2012
Filed:

Oct 14, 2011
Appl. No.:

13/273854
Inventors:

Douglas B. McKenna - Avondale PA, US
J. Anthony DelNegro - Wilmington DE, US
Nicholas J. Dunlop - Wilmington DE, US
Assignee:

Micropore, Inc. - Elkton MD
International Classification:

B01D 53/04
US Classification:

96147
Abstract:

This invention relates to an adsorbent cartridge assembly having at least one end cap, and systems related thereto, for removing gaseous contaminants from the air or other gases.

Semiconductor Wafer Transport Container
view source
US Patent:

55709877, Nov 5, 1996
Filed:

Dec 14, 1993
Appl. No.:

8/166589
Inventors:

Douglas B. McKenna - Wilmington DE
Assignee:

W. L. Gore & Associates, Inc. - Newark DE
International Classification:

B65D 8500
US Classification:

414416
Abstract:

An improved clean environment container for semiconductor wafers that can have more than one port for interfacing with a clean environment. The multiple ports permit interfacing with more than one type of clean environment interface. A diagonal seal surface provides a tight clean seal around the container door and the interface between the door and the clean environment, maintaining utmost cleanliness.

Rebreather Adsorbent System
view source
US Patent:

59642211, Oct 12, 1999
Filed:

Oct 23, 1996
Appl. No.:

8/735847
Inventors:

Douglas B. McKenna - Dover DE
Assignee:

Gore Enterprise Holdings, Inc. - Newark DE
International Classification:

A62B 710
US Classification:

12820512
Abstract:

A gas absorption rebreather canister containing at least one sheet embodying adsorbent material inside and a portion of the sheet spaced apart by a separating means. The sheet being arranged so that expelled gases entering the canister pass along the canister interior substantially parallel with a surface of the sheet. The sheets can be formed with an internal screen positioned between two gas-permeable, liquid-water resistant membranes and the adsorbent material positioned within interstices between the screen members. Also, the sheets can comprise a sheet of expanded porous PTFE having a microstructure of nodes interconnected with fibrils, said sheet containing gas adsorbent material. The sheet can be covered on each side by a sheet of expanded porous PTFE. This device effectively contains the adsorption material within the sheets even when exposed to liquid water.

Multiple Interface Door For Wafer Storage And Handling Container
view source
US Patent:

57137110, Feb 3, 1998
Filed:

Jan 17, 1995
Appl. No.:

8/373347
Inventors:

Douglas B. McKenna - Dover DE
Donald R. Briner - Austin TX
Christopher D. Laramore - San Jose CA
Assignee:

Bye/Oasis - Austin TX
International Classification:

B65G 4907
US Classification:

414217
Abstract:

The present invention is an improved container and interface for transporting or otherwise handling contamination-sensitive materials, such as semi-conductor wafers during processing. The container of the present invention employs a door-within-a-door design, allowing the container to connect with different interfaces on a single side. Employing a container of the present invention, manufacturers may connect a single container to different tools or mini-environments employing incompatible interfaces without the need to use different containers or to access the contents of a single container from different directions. The present invention is particularly useful in instances where a single interface standard, e. g. , SEMI Standard SMIF interfaces, has not been uniformly adopted in a facility. The present invention also provides means which allow either a cassette container or a cassette to be directly placed on an indexer and subsequent indexing to the correct location This is also useful in instances where a facility has not uniformly adopted SMIF technology, and requires the flexibility to load both cassettes and SMIF containers on the same tool.