Patents by Inventor Christopher Wai-Ming Choi

Christopher Wai-Ming Choi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20080042322
    Abstract: Disclosed is: (i) a platen-stroke actuator of a molding system, (ii) a molding system having a platen-stroke actuator, (iii) a method of a platen-stroke actuator of a molding system, (iv) a molding-system controller of a molding system having a platen-stroke actuator, (v) an energization unit couplable to a molding-system controller of a molding system having a platen-stroke actuator, (vi) an article of manufacture of a molding system having a platen-stroke actuator and/or (vii) a network-transmittable signal of a molding system having a platen-stroke actuator, amongst other things.
    Type: Application
    Filed: August 15, 2006
    Publication date: February 21, 2008
    Inventors: Christopher Wai-Ming Choi, Alex Teng
  • Publication number: 20070296121
    Abstract: Disclosed are: (i) a molding-system drive, and (ii) a molding system having a molding-system drive, amougst other things.
    Type: Application
    Filed: June 7, 2006
    Publication date: December 27, 2007
    Inventor: Christopher Wai-Ming Choi
  • Publication number: 20070296281
    Abstract: Disclosed is an electrical motor.
    Type: Application
    Filed: June 7, 2006
    Publication date: December 27, 2007
    Inventor: Christopher Wai-Ming Choi
  • Patent number: 7176648
    Abstract: An energy management control apparatus for a molding machine that includes a first electrically-driven prime mover configured to drive at least a first molding machine device, and a second electrically-driven prime mover configured to drive at least a second molding machine device, includes a common DC link configured to provide DC energy to the first electrically-driven prime mover and to the second electrically-driven prime mover. A slave axis is configured to supply and absorb energy from to/from the common DC link.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: February 13, 2007
    Assignee: Husky Injection Molding Systems Ltd.
    Inventor: Christopher Wai-Ming Choi
  • Patent number: 6684264
    Abstract: Apparatus and method for controlling a molding machine includes structure and function for a human machine interface control panel having: (i) a flat panel display screen; (ii) a pointing device; (iii) a plurality of pushbuttons overlaid with or without icons; (iv) a housing containing the above and the associated electronics; (v) structure to uniquely identify each users preferred configuration; (vi) structure to connect to a remote controller for both digital information and video signal communication; (vii) a connection for receiving external power to drive the panel's electronics and display; and (viii) software running in the remote controller to provide all the operating functions of the human machine interface.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: January 27, 2004
    Assignee: Husky Injection Molding Systems, Ltd.
    Inventor: Christopher Wai-Ming Choi
  • Publication number: 20020013642
    Abstract: Apparatus and method for controlling a hydraulic actuator in an injection molding machine, where the hydraulic actuator moves in a linear or rotary manner to effect movement of an injection molding device, such as a mold clamp. A microcontroller is locally disposed adjacent to the actuator or the hydraulic fluid distribution manifold to cause the actuator to drive the device. The microcontroller is electrically coupled to the system control processor. This distributed control architecture increases system processing throughput, enhances reliability, and permits easier upgrades/repair. Preferably, the microcontroller is mounted on the manifold and controls all of the actuators supplied from that manifold.
    Type: Application
    Filed: July 23, 2001
    Publication date: January 31, 2002
    Inventors: Christopher Wai-Ming Choi, Ian Crookston
  • Patent number: D503178
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: March 22, 2005
    Assignee: Husky Injection Molding Systems Ltd.
    Inventor: Christopher Wai-Ming Choi
  • Patent number: D568893
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: May 13, 2008
    Assignee: Husky Injection Molding Systems Ltd.
    Inventor: Christopher Wai-Ming Choi
  • Patent number: D577030
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: September 16, 2008
    Assignee: Husky Injection Molding Systems Ltd.
    Inventor: Christopher Wai-Ming Choi