Daniel P Casey

US Patent:

7647194, Jan 12, 2010

Filed:

Aug 13, 2008

Appl. No.:

12/191100

Inventors:

Daniel Glenn Casey - Kingwood TX, US
Jerry Max Rovner - Houston TX, US
Randy M. Roberts - Pearland TX, US
Curtis Lee Krause - Houston TX, US

International Classification:

G01K 5/00

US Classification:

702130

Abstract:

Methods for accurately and conveniently calculating the temperature of gaseous hydrogen during vehicle fueling are disclosed. The metered amount of hydrogen added to the on-board storage tank, the ambient conditions, The pressure measured at the dispenser, and a correlation to account for heat transfer are the inputs to the methods of the present invention. These inputs eliminate the need for obtaining temperature and pressure information from the vehicle which is out of the control of the dispenser and/or energy provider. In addition, the use of the equation of the present invention does not require the fill rate to be limited and the corresponding fill time to be extended.

US Patent:

7987877, Aug 2, 2011

Filed:

Aug 7, 2008

Appl. No.:

12/187906

Inventors:

Farshad Alexander Bavarian - Houston TX, US
Dennis J. Benedetto - Spring TX, US
John Michael Brady - Houston TX, US
Daniel Glenn Casey - Kingwood TX, US
Dean Alan Kenefake - Sugar Land TX, US
Hongqiao Bruce Sun - Sugar Land TX, US

Assignee:

Texaco Inc. - San Ramon CA

International Classification:

B65B 31/00

US Classification:

141 5, 141 82, 141 83, 141105, 141236, 137255, 137256

Abstract:

In order to increase the hydrogen utilization rate of the cascade storage system, after dispensing gaseous hydrogen to a hydrogen vehicle, gaseous hydrogen is transferred via a compressor from at least one storage vessel at a lower pressure to at least one storage vessel at a higher, dispensable pressure. The methods of the present invention economically and efficiently increase the utilization rate of gaseous hydrogen stored in a cascade storage system by managing the storage of gaseous hydrogen and increasing the utilization rate of gaseous hydrogen stored in a cascade storage system.

US Patent:

7989511, Aug 2, 2011

Filed:

May 21, 2008

Appl. No.:

12/124671

Inventors:

Daniel Glenn Casey - Kingwood TX, US
Lixin You - Sugar Land TX, US
Curtis Lee Krause - Houston TX, US
Kevin Hoa Nguyen - Missouri City TX, US

Assignee:

Texaco Inc. - San Ramon CA

International Classification:

C07C 27/00

US Classification:

518715, 518702, 518703, 518704, 518717

Abstract:

A process and apparatus for preparing a synthesis gas suitable for feeding to a suitable hydrocarbon production reactor, such as a Fischer Tropsch reactor is described. According to one aspect, the process and apparatus utilize heat exchangers that thermally integrate the reaction steps such that heat generated by exothermic reactions, e. g. , combustion, are arranged closely to the heat sinks, e. g. , cool methane, water and air, to minimize heat loss and maximize heat recovery. Effectively, this thermal integration eliminates excess piping throughout, reduces initial capital and operating costs, provides built-in passive temperature control, and improves synthesis gas production efficiencies.

US Patent:

8061392, Nov 22, 2011

Filed:

Dec 23, 2008

Appl. No.:

12/342775

Inventors:

Daniel G. Casey - Kingwood TX, US

Assignee:

Texaco Inc. - San Ramon CA

International Classification:

B65B 1/04

US Classification:

141 2, 141 26, 141 67, 141197

Abstract:

In the present invention methods for storing gaseous hydrogen employing an ionic liquid are disclosed. The ionic liquid is used to displace the volume in the storage tanks. By displacing the volume in the storage tanks with the ionic liquid, the storage pressure can remain constant and the “stranded” gas can be eliminated. This constant pressure will also allow for a reduction in the number of storage tanks needed to provide the required inventory at hydrogen fueling stations. In addition, this constant pressure will provide a complete and fast fill to the vehicle.

US Patent:

8089769, Jan 3, 2012

Filed:

Oct 23, 2009

Appl. No.:

12/604990

Inventors:

Daniel P. Casey - Seattle WA, US

International Classification:

H05K 7/00

US Classification:

361728, 361730, 361801

Abstract:

An improved smoke detector device comprising a base for mounting to a place on a ceiling or a wall via a mounting means; and a ring for removably attaching to the base, the ring comprising at least two modules that removably connect together via a connecting means to form the ring, wherein each module comprises an inner chamber and a door, the inner chamber of each module can hold an item, the door of each module can move between an open position and a closed position for respectively allowing and preventing access to the inner chamber of the module.

US Patent:

8210214, Jul 3, 2012

Filed:

Dec 27, 2007

Appl. No.:

11/965405

Inventors:

Daniel Glenn Casey - Kingwood TX, US
Bhaskar Balasubramanian - Houston TX, US

Assignee:

Texaco Inc. - San Ramon CA

International Classification:

B67C 3/00
B01D 45/14

US Classification:

141 4, 48 61, 48197 R, 48199 R, 554591, 95 34, 95 39, 95269, 141 44

Abstract:

An apparatus and method for providing a hydrogen rich gas stream at a high pressure for use by hydrogen vehicles or other devices requiring hydrogen rich feed streams are disclosed in the present invention. As the pressure of gaseous hydrogen is increased, the temperature of the gaseous hydrogen also increases due to the heat of compression. The apparatus and method of the present invention utilize localized cooling via a vortex tube to cool the gaseous hydrogen caused by the increase in pressure.

US Patent:

8241374, Aug 14, 2012

Filed:

Dec 15, 2006

Appl. No.:

11/611638

Inventors:

Farshad Bavarian - Houston TX, US
James F. Stevens - Katy TX, US
Balaji Krishnamurty - Katy TX, US
Yunquan Liu - Katy TX, US
Curtis L. Krause - Houston TX, US
Lixin You - Sugar Land TX, US
Daniel G. Casey - Kingwood TX, US

Assignee:

Texaco Inc. - San Ramon CA

International Classification:

B01J 7/00
C01B 3/36
B01D 59/26

US Classification:

48 61, 48197 R, 96143, 96146

Abstract:

The present invention discloses a fluidized bed system for the single step reforming technology for the production of hydrogen. Single step reforming combines the steam methane reforming, water gas shift, and carbon dioxide removal in a single step process of hydrogen generation. In the present invention, to address the heat transfer and the replenishment issues associated with single step reforming, the sorbent particles are fluidized. This fluidization allows the sorbent particles to be regenerated and consequently allows the optimal operating conditions for single step reforming to be maintained.

US Patent:

8494772, Jul 23, 2013

Filed:

May 17, 2007

Appl. No.:

11/749838

Inventors:

Daniel G. Casey - Kingwood TX, US
Brandon W. Janak - Katy TX, US
Paul D. Burger - Houston TX, US

Assignee:

Texaco Inc. - San Ramon CA

International Classification:

G01F 22/02
G06Q 10/08
G06F 17/40
G06F 19/00

US Classification:

702 1, 73149, 340605, 702127, 705 28, 708200

Abstract:

Methods for accurately and conveniently calculating the inventory of hydrogen storage in a stationary storage vessel using the external ambient temperature and the internal pressure are disclosed in the present invention. To account for the delay in the heat transfer from the ambient air to the storage vessel and then to the hydrogen gas a first order filter can be used on the external ambient temperature. Following the application of the first order filter on the external ambient temperature, an empirical equation is used to calculate the mass of hydrogen in the stationary storage vessel.