Slide driving device for presses

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6085520
SERIAL NO

08972813

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A slide driving device employs a variable-displacement pump/motor for driving a rotating element of the slide driving device. The displacement volume of the variable-displacement pump/motor, whose output drives the slide, is varied in response to deviation of measured driver parameters from commanded driver parameters. An energy storage device temporarily absorbs excess energy during a portion of a molding cycle, and returns the energy to the system for re-use. In one embodiment, the energy storage device is an accumulator. In a second embodiment, the energy storage device is a flywheel. The combination of variable displacement volume and energy storage maintains the fluid pressure substantially constant during a cycle of the slide driving device.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
AIDA ENGINEERING, LTD.KANAGAWA68

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kohno, Yasuyuki Tokyo, JP 22 129

Cited Art Landscape

Patent Info (Count) # Cites Year
 
SIGMA INDUSTRIES, INC. (1)
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SMS HASENCLEVER MASCHINENFABRIK GMBH (1)
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MANNESMANN REXROTH GMBH (1)
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ELIXIR GAMING TECHNOLOGIES, INC. (1)
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ADAPTIVE POWER, INC. (1)
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MASCHINENFABRIK MUELLER-WEINGARTEN AG (1)
* 5460084 Method for controlling the drive of a hydraulic press 8 1994
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
SUSTAINX, INC. (36)
8225606 Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression 19 2009
7958731 Systems and methods for combined thermal and compressed gas energy conversion systems 48 2010
7963110 Systems and methods for improving drivetrain efficiency for compressed gas energy storage 44 2010
8240146 System and method for rapid isothermal gas expansion and compression for energy storage 19 2010
7900444 Systems and methods for energy storage and recovery using compressed gas 60 2010
8122718 Systems and methods for combined thermal and compressed gas energy conversion systems 28 2010
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8359856 Systems and methods for efficient pumping of high-pressure fluids for energy storage and recovery 12 2011
8627658 Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression 0 2011
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8479505 Systems and methods for reducing dead volume in compressed-gas energy storage systems 7 2011
8191362 Systems and methods for reducing dead volume in compressed-gas energy storage systems 18 2011
8171728 High-efficiency liquid heat exchange in compressed-gas energy storage systems 19 2011
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8250863 Heat exchange with compressed gas in energy-storage systems 17 2011
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8763390 Heat exchange with compressed gas in energy-storage systems 0 2012
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AIDA ENGINEERING, LTD. (10)
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SustaioX, Inc. (1)
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* Cited By Examiner