Frederick E Williams

US Patent:

8313557, Nov 20, 2012

Filed:

Jun 25, 2009

Appl. No.:

12/491460

Inventors:

Heather D. Willauer - Fairfax Station VA, US
Dennis R Hardy - California MD, US
M. Kathleen Lewis - Lake Ariel PA, US
Ejiogu C. Ndubizu - Burtonsville MD, US
Frederick Williams - Accokeek MD, US

Assignee:

The United States of America, as represented by the Secretary of the Navy - Washington DC

International Classification:

B01D 53/22
C01B 31/20

US Classification:

95 51, 95 46, 96 4, 96 6, 96 11, 96 12

Abstract:

The present invention is generally directed to a system for recovering COfrom seawater or aqueous bicarbonate solutions using a gas permeable membrane with multiple layers. At elevated pressures, gaseous COand bound COin the ionic form of bicarbonate and carbonate diffuse from the seawater or bicarbonate solution through the multiple layers of the membrane. Also disclosed is the related method of recovering COfrom seawater or aqueous bicarbonate solutions.

US Patent:

20070236358, Oct 11, 2007

Filed:

Apr 5, 2006

Appl. No.:

11/278709

Inventors:

Thomas T. Street - Fairfax Station VA, US
Frederick Williams - Accokeek MD, US
John Farley - Burke VA, US

International Classification:

G08B 17/10

US Classification:

340628, 200 6103

Abstract:

A smoke detector system includes a plurality of smoke alarm devices individually configured to detect smoke and output an acoustic signal of predetermined frequency. The plurality of smoke alarm devices are individually configured to communicate with each other via wireless acoustic communication.

US Patent:

20080036593, Feb 14, 2008

Filed:

Aug 3, 2007

Appl. No.:

11/833753

Inventors:

Frederick Williams - Accokeek MD, US
Jeffrey Owrutsky - Silver Spring MD, US
Daniel Gottuk - Ellicott City MD, US
Daniel Steinhurst - Alexandria VA, US
Christian Minor - Potomac MD, US
Stephen Wales - Great Falls VA, US

Assignee:

The Government of the US, as represented by the Secretary of the Navy - Washington DC

International Classification:

G08B 21/00

US Classification:

340540000

Abstract:

Provided a system and method for detecting an event while discriminating against false alarms in a monitored space using at least one sensor suite to acquire signals, transmitting the signals to a sensor system device where the signal is processed into data packets, transmitting the data packets to a data fusion device, where the data packets are aggregated and algorithmic data fusion analysis is performed to generate threat level information. The threat level information is distributed to a supervisory control system where an alarm level can be generated when predetermined criteria are met to indicate the occurrence of an event in the monitored space.

US Patent:

20130039837, Feb 14, 2013

Filed:

Aug 10, 2012

Appl. No.:

13/571383

Inventors:

Heather D. Willauer - Fairfax Station VA, US
John Barile - Summit Point WV, US
Felice DiMascio - Rock Hill CT, US
Dennis R. Hardy - Alexandria VA, US
Frederick Williams - Accokeek MD, US

International Classification:

C01B 31/20

US Classification:

423438

Abstract:

A method for recovering carbon dioxide from acidified seawater using a membrane contactor and passing seawater with a pH less than or equal to 6 over the outside of a hollow fiber membrane tube while applying vacuum or a hydrogen sweep gas to the inside of the hollow fiber membrane tube, wherein up to 92% of the re-equilibrated [CO]is removed from the natural seawater.

US Patent:

48399060, Jun 13, 1989

Filed:

May 20, 1988

Appl. No.:

7/196235

Inventors:

James H. Leveque - Ellicott City MD
Frederick A. Williams - Encinitas CA
John Eldon - Encinitas CA

Assignee:

AMAF Industries, Inc. - Columbia MD
TRW, Inc. - Cleveland OH

International Classification:

H04L 2700

US Classification:

375 37

Abstract:

A digital linked compressor-expander telecommunications system (Lincompex), is implemented using a general purpose digital signal processor wherein the compression and expansion functions are performed by blocks of programmed code. Input audio analog signals are converted to parallel data digital signals thereupon the digitial signals are input for processing. After processing, the resultant signals are passed to a 16-bit digital-to-analog converter where either the compressed or expanded digital voice data signal is converted back into an audio frequency analog signal for either transmission or communication on an output device.

US Patent:

20170268116, Sep 21, 2017

Filed:

Jun 6, 2017

Appl. No.:

15/614855

Inventors:

- Arlington VA, US
Heather D. Willauer - Fairfax Station VA, US
Dennis R. Hardy - California MD, US
Frederick Williams - Accokeek MD, US
M. Kathleen Lewis - Lake Ariel PA, US

International Classification:

C25B 1/10
C25B 9/10

Abstract:

A method for using an electrochemical cell to continuously acidify alkaline water sources and recover carbon dioxide with simultaneous continuous hydrogen gas production. The electrochemical cell has a center compartment, an electrolyte-free anode compartment having a mesh anode in direct contact with an ion permeable membrane, an endblock in direct contact with the anode where the endblock provides a gas escape route behind the anode, an electrolyte-free cathode compartment having a mesh cathode in direct contact with an ion permeable membrane, and an endblock in direct contact with the cathode where the endblock provides a gas escape route behind the cathode. Current applied to the electrochemical cell for generating hydrogen gas also lowers the pH of the alkaline water to produce carbon dioxide with no additional current or power.

US Patent:

20140238869, Aug 28, 2014

Filed:

Feb 28, 2014

Appl. No.:

14/193281

Inventors:

Felice DiMascio - Rock Hill CT, US
Heather D. Willauer - Fairfax Station VA, US
Dennis R. Hardy - California MD, US
Frederick Williams - Accokeek MD, US
M. Kathleen Lewis - Lake Ariel PA, US

International Classification:

C25B 9/08
C25B 1/10

US Classification:

205338, 204266

Abstract:

An electrochemical cell for the continuous acidification of alkaline water sources and recovery of carbon dioxide with simultaneous continuous hydrogen gas production having a center compartment, an electrolyte-free anode compartment having a mesh anode in direct contact with an ion permeable membrane, an endblock in direct contact with the anode where the endblock provides a gas escape route behind the anode, an electrolyte-free cathode compartment having a mesh cathode in direct contact with an ion permeable membrane, and an endblock in direct contact with the cathode where the endblock provides a gas escape route behind the cathode. Current applied to the electrochemical cell for generating hydrogen gas also lowers the pH of the alkaline water to produce carbon dioxide with no additional current or power. Also disclosed is the related method for continuously acidifying alkaline water sources and recovering carbon dioxide with continuous hydrogen gas production.