Patents by Inventor Yuan Kwang Lim

Yuan Kwang Lim 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).

  • Insert for die cast shot sleeve
    Patent number: 10071417
    Abstract: A shot sleeve for use in a die cast assembly has a shot sleeve body extending along an axis and having a bore for receiving a plunger. An insert is secured at a shot end of the shot sleeve body. A die cast assembly is also disclosed.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: September 11, 2018
    Assignee: United Technologies Corporation
    Inventors: Yuan Kwang Lim, Yan Seng Loh, Andrew Tan, Yao Hui Chee, Shih Han Wong, yee Ling Kwan
  • Die casting machine shot sleeve with pour liner
    Patent number: 9987678
    Abstract: A shot sleeve for a die casting machine includes a shot sleeve body with a pour opening that extends to a spaced apart inner and outer diameters. The shot sleeve body is a first material. A liner is secured to the shot sleeve body beneath the pour opening. The liner is a second material. The shot sleeve body and the liner together provide a plunger surface defining a cavity that is configured to receive a molten shot of material.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: June 5, 2018
    Inventors: Yuan Kwang Lim, Yan Seng Loh, Andrew Tan, Yao Hui Chee, Shih Han Wong, Yee Ling Kwan
  • Replaceable piston ring for die casting machine plunger
    Patent number: 9962761
    Abstract: A plunger assembly for a die casting machine shot sleeve includes a plunger body that has an outer diameter. The plunger includes a head that provides a wall. A piston ring is arranged on the plunger body adjacent to the wall. A nut is secured to the outer diameter and urges the piston ring toward the wall to retain the piston ring securely on the plunger body.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: May 8, 2018
    Assignee: PRATT & WHITNEY SERVICES PTE LTD.
    Inventors: Yuan Kwang Lim, Yan Seng Loh, Andrew Tan, Yao Hui Chee, Shih Han Wong, Yee Ling Kwan
  • DIE CASTING MACHINE SHOT SLEEVE
    Publication number: 20170036269
    Abstract: A method of manufacturing a shot sleeve for a die casting machine includes engaging an intermediate sleeve layer with one of an outer sleeve layer and an inner sleeve layer, and shrink fitting the other of the outer sleeve layer and an inner sleeve layer into engagement with the intermediate sleeve layer.
    Type: Application
    Filed: November 27, 2014
    Publication date: February 9, 2017
    Inventors: Yuan Kwang Lim, Yan Seng Loh, Andrew Tan, Yao Hui Chee, Shih Han Wong, Yee Ling Kwan
  • DIE CASTING MACHINE SHOT SLEEVE WITH POUR LINER
    Publication number: 20160279702
    Abstract: A shot sleeve for a die casting machine includes a shot sleeve body with a pour opening that extends to a spaced apart inner and outer diameters. The shot sleeve body is a first material. A liner is secured to the shot sleeve body beneath the pour opening. The liner is a second material. The shot sleeve body and the liner together provide a plunger surface defining a cavity that is configured to receive a molten shot of material.
    Type: Application
    Filed: August 5, 2014
    Publication date: September 29, 2016
    Applicant: United Technologies Corporation
    Inventors: Yuan Kwang Lim, Yan Seng Loh, Andrew Tan, Yao Hui Chee, Shih Han Wong, Yee Ling Kwan
  • REPLACEABLE PISTON RING FOR DIE CASTING MACHINE PLUNGER
    Publication number: 20160271686
    Abstract: A plunger assembly for a die casting machine shot sleeve includes a plunger body that has an outer diameter. The plunger includes a head that provides a wall. A piston ring is arranged on the plunger body adjacent to the wall. A nut is secured to the outer diameter and urges the piston ring toward the wall to retain the piston ring securely on the plunger body.
    Type: Application
    Filed: July 29, 2014
    Publication date: September 22, 2016
    Applicant: United Technologies Corporation
    Inventors: Yuan Kwang Lim, Yan Seng Loh, Andrew Tan, Yao Hui Chee, Shih Han Wong, Yee Ling Kwan
  • INSERT FOR DIE CAST SHOT SLEEVE
    Publication number: 20160184886
    Abstract: A shot sleeve for use in a die cast assembly has a shot sleeve body extending along an axis and having a bore for receiving a plunger. An insert is secured at a shot end of the shot sleeve body. A die cast assembly is also disclosed.
    Type: Application
    Filed: July 9, 2014
    Publication date: June 30, 2016
    Inventors: Yuan Kwang Lim, Yan Seng Loh, Andrew Tan, Yao Hui Chee, Shih Han Wong, yee Ling Kwan
  • ISOTHERMAL SHOT TUBE ASSEMBLY
    Publication number: 20160038999
    Abstract: A shot tube assembly for a die casting process includes a spiral passage for circulating a coolant about a cavity containing the molten metal material. The circulating coolant provides temperature control of the shot tube that improves the casting process and increases shot tube life.
    Type: Application
    Filed: March 11, 2014
    Publication date: February 11, 2016
    Inventors: Mario P. Bochiechio, Carl R. Verner, Mark F. Bartholomew, John F. Blondin, Yan Seng Loh, Yuan Kwang Lim