Richard L Colwell

US Patent:

6786245, Sep 7, 2004

Filed:

Feb 21, 2003

Appl. No.:

10/371602

Inventors:

Donald Paul Eichelberger - Macungie PA
David John Farese - Riegelsville PA
Joseph Perry Cohen - Bethlehem PA
Richard Layton Colwell - Macungie PA

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

B65B 3100

US Classification:

141 4, 141 2, 141 18, 141 49, 141 54, 141 58, 141 67, 141 83, 141 95, 141197, 141231

Abstract:

A mobile self-contained self-powered station having a plurality of vessels delivers a pressurized fluid to a receiving tank (e. g. , a fuel tank of a hydrogen-powered vehicle) without using mechanical compression, external electric power, or other external utilities. The station includes first and second vessels, a conduit in fluid communication with the receiving tank and each of the first and second vessels, means for transferring at least a portion of a quantity of the pressurized fluid from the first vessel to the receiving tank, means for measuring continuously a pressure differential between the increasing pressure in the receiving tank and the decreasing pressure in the first vessel, means for discontinuing the transfer from the first vessel when a predetermined limit value is reached, and means for transferring at least a portion of a quantity of the pressurized fluid from the second vessel to the receiving tank.

US Patent:

7178565, Feb 20, 2007

Filed:

Aug 24, 2004

Appl. No.:

10/925291

Inventors:

Donald Paul Eichelberger - Macungie PA, US
David John Farese - Riegelsville PA, US
Joseph Perry Cohen - Bethlehem PA, US
Richard Layton Colwell - Macungie PA, US

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

B65B 31/00

US Classification:

141 47, 141 4, 141 39

Abstract:

A mobile self-contained self-powered station having a plurality of vessels delivers a pressurized fluid to a receiving tank (e. g. , a fuel tank of a hydrogen-powered vehicle) without using mechanical compression, external electric power, or other external utilities. The station includes first and second vessels, a conduit in fluid communication with the receiving tank and each of the first and second vessels, means for transferring at least a portion of a quantity of the pressurized fluid from the first vessel to the receiving tank, means for measuring continuously a pressure differential between the increasing pressure in the receiving tank and the decreasing pressure in the first vessel, means for discontinuing the transfer from the first vessel when a predetermined limit value is reached, and means for transferring at least a portion of a quantity of the pressurized fluid from the second vessel to the receiving tank.

US Patent:

20040080424, Apr 29, 2004

Filed:

Oct 23, 2002

Appl. No.:

10/278826

Inventors:

Joseph Perry - Bethlehem PA, US
David Farese - Riegelsville PA, US
Richard Colwell - Macungie PA, US

International Classification:

G08B017/10

US Classification:

340/632000

Abstract:

Method for detecting and controlling the concentration of a flammable gas in an enclosed space. The method includes providing a source of flammable gas to an enclosed space, wherein the enclosed space includes a device which consumes or stores the flammable gas, and wherein the enclosed space further includes unclassified electrical equipment and an electrical power supply to the unclassified electrical equipment. The atmosphere in the enclosed space is analyzed to determine the concentration of the flammable gas therein and this concentration is compared to a first reference concentration and a second reference concentration that is less than the first reference concentration. When the concentration of the flammable gas in the enclosed space is between the first and second reference concentrations, the source of flammable gas to the enclosed space is terminated and the enclosed space is ventilated. When the concentration of the flammable gas in the enclosed space is equal to or greater than the first reference concentration, the electrical power supply to the unclassified electrical equipment in the enclosed space is terminated.