David D Beck

US Patent:

6587832, Jul 1, 2003

Filed:

Mar 16, 2000

Appl. No.:

09/527081

Inventors:

David Beck - Montara CA
Alexander Dukhovny - San Francisco CA
David Meredith - El Sobrante CA
David Ellis - San Francisco CA

Assignee:

Compensate.com LLC - Montara CA

International Classification:

G06F 1760

US Classification:

705 9, 705 8, 705 10

Abstract:

Method and system for obtaining and using observed market rates in estimating suitable market-based compensation for one or more jobs. Each observed market rate is assigned a job family and a combination of a job category and a job level of responsibility (C/L). Median market rates and average market rates are observed for different job families and are combined in a novel way to produce job family factors and C/L factors that, when multiplied together accurately reflect market rates for that job, even for a combination of job family and job C/L that is not represented in the data.

US Patent:

8423215, Apr 16, 2013

Filed:

Sep 22, 2010

Appl. No.:

12/887557

Inventors:

Weston Arthur Hermann - Palo Alto CA, US
Jeffrey Brian Straubel - Menlo Park CA, US
David G. Beck - Tiburon CA, US

Assignee:

Tesla Motors, Inc. - Palo Alto CA

International Classification:

H01M 8/22

US Classification:

701 22, 320137

Abstract:

A system and method for charging a metal-air battery pack at the maximum possible rate while maintaining an ambient oxygen concentration below a preset concentration is provided, thereby minimizing the risks associated with generating oxygen during the charging cycle.

US Patent:

8541126, Sep 24, 2013

Filed:

Aug 31, 2009

Appl. No.:

12/584074

Inventors:

Weston Arthur Hermann - Palo Alto CA, US
Scott Ira Kohn - Redwood City CA, US
Vineet Haresh Mehta - Mountain View CA, US
David G. Beck - Tiburon CA, US

Assignee:

Tesla Motors, Inc. - Palo Alto CA

International Classification:

H01M 10/50

US Classification:

429120, 429149, 429152

Abstract:

A battery pack is provided that includes one or more thermal barrier elements, the thermal barrier elements dividing the cells within the battery pack into groups of cells. The thermal barrier elements that separate the cells into groups prevent a thermal runaway event initiated in one group of cells from propagating to the cells within a neighboring group of cells.

US Patent:

8626369, Jan 7, 2014

Filed:

Sep 22, 2010

Appl. No.:

12/887687

Inventors:

Weston Arthur Hermann - Palo Alto CA, US
Jeffrey Brian Straubel - Menlo Park CA, US
David G. Beck - Tiburon CA, US

Assignee:

Tesla Motors, Inc. - Palo Alto CA

International Classification:

H01M 8/22

US Classification:

701 22, 903960

Abstract:

A system and method for charging a metal-air battery pack at the maximum possible rate while maintaining an ambient oxygen concentration below a preset concentration is provided, thereby minimizing the risks associated with generating oxygen during the charging cycle.

US Patent:

20100136396, Jun 3, 2010

Filed:

Aug 21, 2009

Appl. No.:

12/545146

Inventors:

Weston Arthur Hermann - Palo Alto CA, US
David G. Beck - Tiburon CA, US

Assignee:

TESLA MOTORS, INC. - San Carlos CA

International Classification:

H01M 2/10

US Classification:

429 99

Abstract:

A spacer assembly for use with a cell mounting bracket in a battery pack is provided. The spacer assembly, comprised of one or more spacers, maintains the positions of the batteries within the battery pack during a thermal event and after the cell mounting bracket loses structural integrity due to the increased temperature associated with the thermal event. By keeping the battery undergoing thermal runaway in its predetermined location within the battery pack, the minimum spacing between cells is maintained, thereby helping to minimize the thermal effects on adjacent cells while ensuring that the cooling system, if employed, is not compromised. As a result, the risk of thermal runaway propagation is reduced.

US Patent:

20120034501, Feb 9, 2012

Filed:

Apr 18, 2011

Appl. No.:

13/088444

Inventors:

Weston Arthur Hermann - Palo Alto CA, US
Scott Ira Kohn - Redwood City CA, US
David G. Beck - Tiburon CA, US

Assignee:

TESLA MOTORS, INC. - Palo Alto CA

International Classification:

H01M 10/50
H01M 2/22

US Classification:

429 62

Abstract:

A battery pack, or battery pack module, is provided that is configured to respond to a short circuit of moderate current in a manner that minimizes the risk of an initial thermal runaway event propagating throughout the battery pack/battery pack module. In general, the battery pack/battery module allows pre-selection of which cell of the cells comprising the battery pack/battery pack module will be the last cell to respond to the short circuit. As a result, a thermal isolation barrier may be used to separate the preselected cell from the other cells of the battery pack/battery pack module, thereby minimizing the risk of excessive heating and extensive collateral damage.

US Patent:

20130015823, Jan 17, 2013

Filed:

Sep 22, 2012

Appl. No.:

13/624900

Inventors:

Weston Arthur Hermann - Palo Alto CA, US
Jeffrey Brian Straubel - Menlo Park CA, US
David G. Beck - Tiburon CA, US

Assignee:

TESLA MOTORS, INC. - Palo Alto CA

International Classification:

H02J 7/00

US Classification:

320162, 320137

Abstract:

A method for charging a metal-air battery pack at the maximum possible rate while maintaining an ambient oxygen concentration below a preset concentration is provided, thereby minimizing the risks associated with generating oxygen during the charging cycle.

US Patent:

20130328531, Dec 12, 2013

Filed:

Aug 15, 2013

Appl. No.:

13/967501

Inventors:

Jeffrey Brian Straubel - Menlo Park CA, US
David G. Beck - Tiburon CA, US

Assignee:

TESLA MOTORS, INC. - Palo Alto CA

International Classification:

H02J 7/00

US Classification:

320137

Abstract:

A method for charging a metal-air battery pack at the maximum possible rate while maintaining an ambient oxygen concentration below a preset concentration is provided, thereby minimizing the risks associated with generating oxygen during the charging cycle.