Patents by Inventor San Haw Chong

San Haw Chong 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).

  • Patent number: 11703042
    Abstract: A suction muffler for a reciprocating compressor comprises a first housing portion and a second hosing portion. The first housing portion comprising a first inlet opening, and a second inlet opening. The second housing portion comprises a blocking member configured to block one of a first refrigerant flow path from the first inlet opening to a suction muffler outlet and a second refrigerant flow path from the second inlet opening to the suction muffler outlet. The blocking member can be provided in different configurations by a selection of the second housing portion or by configuring the relative arrangement of the first housing portion and the second housing portion.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: July 18, 2023
    Assignee: Panasonic Appliances Refrigeration Devices Singapore
    Inventors: San Haw Chong, Zhen Chyen Lau
  • Publication number: 20220163026
    Abstract: A suction muffler for a reciprocating compressor comprises a first housing portion and a second hosing portion. The first housing portion comprising a first inlet opening, and a second inlet opening. The second housing portion comprises a blocking member configured to block one of a first refrigerant flow path from the first inlet opening to a suction muffler outlet and a second refrigerant flow path from the second inlet opening to the suction muffler outlet. The blocking member can be provided in different configurations by a selection of the second housing portion or by configuring the relative arrangement of the first housing portion and the second housing portion.
    Type: Application
    Filed: March 30, 2020
    Publication date: May 26, 2022
    Applicant: Panasonic Appliances Refrigeration Devices Singapore
    Inventors: San Haw CHONG, Zhen Chyen LAU
  • Patent number: 11306708
    Abstract: A hermetic compressor is disclosed. The hermetic compressor comprises compressing unit and an electromotive unit. The compressing unit comprises: a cylinder block having a compression chamber; cylinder head having a discharge chamber which is controllably couplable to the compression chamber; a discharge muffler body portion and a discharge muffler cover which form a discharge muffler chamber coupled to the discharge chamber; a piston configured to compress a refrigerant in the compression chamber; and a main frame having a least one mounting leg. The electromotive unit comprises: a stator; a rotor; and a crankshaft coupled to the rotor. The electromotive unit is configured such that rotary motion of the rotor relative to the stator causes rotation of the crankshaft which drives the piston to compress the refrigerant in the compression chamber.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: April 19, 2022
    Assignee: Panasonic Appliances Refrigeration Devices Singapore
    Inventors: San Haw Chong, Kevin Kai Wei Teo
  • Publication number: 20210108627
    Abstract: A hermetic compressor is disclosed. The hermetic compressor comprises compressing unit and an electromotive unit. The compressing unit comprises: a cylinder block having a compression chamber; cylinder head having a discharge chamber which is controllably couplable to the compression chamber; a discharge muffler body portion and a discharge muffler cover which form a discharge muffler chamber coupled to the discharge chamber; a piston configured to compress a refrigerant in the compression chamber; and a main frame having a least one mounting leg. The electromotive unit comprises: a stator; a rotor; and a crankshaft coupled to the rotor. The electromotive unit is configured such that rotary motion of the rotor relative to the stator causes rotation of the crankshaft which drives the piston to compress the refrigerant in the compression chamber.
    Type: Application
    Filed: March 27, 2019
    Publication date: April 15, 2021
    Applicant: PANASONIC APPLIANCES REFRIGERATION DEVICES SINGAPORE
    Inventors: San Haw CHONG, Kevin Kai Wei TEO
  • Publication number: 20130108493
    Abstract: A valve plate for a compressor, a compressor, and a method of thermal insulation applied in a compressor. The valve plate has a thermally insulating capability for thermally insulating a suction muffler of the compressor from a discharge plenum in a cylinder head of the compressor.
    Type: Application
    Filed: May 30, 2012
    Publication date: May 2, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Kok How Wan, San Haw Chong