EXPANDER SPEED CONTROL

United States of America Patent

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Issued Date
Feb 10, 2011
app pub date
Dec 13, 2007
filing date
Jan 29, 2007

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Abandoned

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Abstract

Apparatus and method for controlling the speed for a GM type expander includes relays that interrupt power when the current in the line is zero. The speed controller apparatus limits the maximum speed providing the expander with sufficient gas to meet its cooling requirements.

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Patent Owner(s)

Patent Owner	Address
SUMITOMO HEAVY INDUSTRIES LTD	TOKYO JAPAN TOKYO METROPOLIS
SUMITOMO (SHI) CRYOGENICS OF AMERICA INC	1833 VULTEE STREET ALLENTOWN PA 18103

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Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Ash, Gary	Dartmouth, US	5	17
Borchers, John	Allentown, US	6	26
LongsWorth, Relph C	Allentown, US	1	2

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EXPANDER SPEED CONTROL

Number of patents in Portfolio can not be more than 2000

United States of America Patent

12279668

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12279668

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