US Patent No: 6,085,520

Number of patents in Portfolio can not be more than 2000

Slide driving device for presses

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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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Patent Owner(s)

Patent OwnerAddressTotal Patents
AIDA ENGINEERING, LTD.KANAGAWA141

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kohno, Yasuyuki Sagamihara, JP 20 94

Cited Art Landscape

Patent Info (Count) # Cites Year
 
MASCHINENFABRIK MUELLER-WEINGARTEN AG (2)
5,460,084 Method for controlling the drive of a hydraulic press 8 1994
5,568,766 Method for controlling the drive for a hydraulic press having a plurality of operating phases 20 1994
 
ADAPTIVE POWER, INC. (1)
5,794,442 Adaptive fluid motor control 49 1996
 
Mannesmann Rexroth GmbH (1)
5,499,525 Hydraulic drive for a sheet metal forming press 8 1994
 
SIGMA INDUSTRIES, INC. (1)
5,526,738 Hydraulic press with flywheel 5 1994
 
SMS HASENCLEVER MASCHINENFABRIK GMBH (1)
4,563,889 Screw press 6 1984
 
The C. A. Lawton Company (1)
4,215,543 Method and apparatus for linear and nonlinear control of a hydraulic press 4 1979
 
Other [Check patent profile for assignment information] (2)
4,209,987 Hydraulic screw press drive 6 1978
4,208,895 Method and apparatus for controlling a hydraulic screw press 10 1978

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
SUSTAINX, INC. (37)
8,225,606 Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression 17 2009
7,958,731 Systems and methods for combined thermal and compressed gas energy conversion systems 42 2010
7,963,110 Systems and methods for improving drivetrain efficiency for compressed gas energy storage 42 2010
8,240,146 System and method for rapid isothermal gas expansion and compression for energy storage 18 2010
8,037,678 Energy storage and generation systems and methods using coupled cylinder assemblies 30 2010
7,900,444 Systems and methods for energy storage and recovery using compressed gas 50 2010
8,122,718 Systems and methods for combined thermal and compressed gas energy conversion systems 26 2010
8,109,085 Energy storage and generation systems and methods using coupled cylinder assemblies 27 2010
8,359,856 Systems and methods for efficient pumping of high-pressure fluids for energy storage and recovery 12 2011
8,627,658 Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression 0 2011
8,209,974 Systems and methods for energy storage and recovery using compressed gas 1 2011
8,117,842 Systems and methods for compressed-gas energy storage using coupled cylinder assemblies 29 2011
8,046,990 Systems and methods for improving drivetrain efficiency for compressed gas energy storage and recovery systems 31 2011
8,479,505 Systems and methods for reducing dead volume in compressed-gas energy storage systems 7 2011
8,191,362 Systems and methods for reducing dead volume in compressed-gas energy storage systems 18 2011
8,171,728 High-efficiency liquid heat exchange in compressed-gas energy storage systems 18 2011
8,245,508 Improving efficiency of liquid heat exchange in compressed-gas energy storage systems 17 2011
8,250,863 Heat exchange with compressed gas in energy-storage systems 17 2011
8,474,255 Forming liquid sprays in compressed-gas energy storage systems for effective heat exchange 7 2011
8,234,863 Forming liquid sprays in compressed-gas energy storage systems for effective heat exchange 17 2011
8,234,862 Systems and methods for combined thermal and compressed gas energy conversion systems 17 2011
8,234,868 Systems and methods for improving drivetrain efficiency for compressed gas energy storage 19 2011
8,104,274 Increased power in compressed-gas energy storage and recovery 27 2011
8,448,433 Systems and methods for energy storage and recovery using gas expansion and compression 9 2011
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8,240,140 High-efficiency energy-conversion based on fluid expansion and compression 17 2011
8,578,708 Fluid-flow control in energy storage and recovery systems 2 2011
8,479,502 Increased power in compressed-gas energy storage and recovery 7 2012
8,468,815 Energy storage and generation systems and methods using coupled cylinder assemblies 7 2012
8,713,929 Systems and methods for energy storage and recovery using compressed gas 0 2012
8,733,094 Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression 0 2012
8,661,808 High-efficiency heat exchange in compressed-gas energy storage systems 0 2012
8,763,390 Heat exchange with compressed gas in energy-storage systems 0 2012
8,733,095 Systems and methods for efficient pumping of high-pressure fluids for energy 0 2012
8,667,792 Dead-volume management in compressed-gas energy storage and recovery systems 0 2013
8,539,763 Systems and methods for efficient two-phase heat transfer in compressed-air energy storage systems 5 2013
8,806,866 Systems and methods for efficient two-phase heat transfer in compressed-air energy storage systems 0 2013
 
AIDA ENGINEERING, LTD. (5)
6,647,870 Drive apparatus, press machine slide drive apparatus and method thereof 17 2001
8,127,590 Die cushion device of pressing machine 2 2005
7,401,548 Movable plate drive device and press slide drive device 0 2005
8,037,735 Die cushion apparatus of press machine 1 2006
8,726,802 Method and apparatus for controlling electric servo press 0 2010
 
KOMATSU LTD. (2)
7,401,488 Die cushion apparatus 1 2005
7,739,894 Die cushion controller 2 2006
 
AGILENT TECHNOLOGIES, INC. (1)
7,778,283 Timing bridge device 2 2007
 
BOSCH REXROTH AG (1)
7,827,843 Device for controlling the drawing process in a transfer press 1 2004
 
FORD GLOBAL TECHNOLOGIES, LLC (1)
7,147,078 Charging a fluid accumulator while operating a hybrid vehicle powertrain including an engine and a pump/motor 17 2004
 
MANNESMANN REXROTH AG (1)
6,499,295 Hydro-transformer 2 2001
 
MITSUBISHI HEAVY INDUSTRIES, LTD. (1)
6,783,430 Grinding apparatus using fluid servomotor 0 2000
 
SustaioX, Inc. (1)
8,677,744 Fluid circulation in energy storage and recovery systems 0 2011
 
WILSON TOOL INTERNATIONAL INC. (1)
7,823,434 Live tooling systems for machine tools 1 2007