Patents Assigned to LET ENGINEERING CO., LTD.
  • Patent number: 12488773
    Abstract: The present disclosure relates to a liquid oxygen vent silencer used in an oxygen production process implemented so as to eliminate potentially explosive elements, and the vent silencer is manufactured using copper plates and stainless (SUS) having no risk of explosions to minimize an edge that collide with oxygen gas, and includes a silencer body that receives cryogenic liquid gas and moves an internal space up and down to reduce noise; and a body support that is installed along an outside of the silencer body and supports the silencer body by raising or lowering the silencer body from a ground.
    Type: Grant
    Filed: February 21, 2025
    Date of Patent: December 2, 2025
    Assignee: LET ENGINEERING CO., LTD.
    Inventors: Ju Sik Lee, Hyung Dong Lee, Sun Byeul Jo, Won Myeong Seo, Tae Kyu Kim, Dong Guen Lee
  • Patent number: 12482445
    Abstract: The present disclosure relates to a liquid oxygen vent silencer implemented so as to eliminate potentially explosive elements, and the liquid oxygen vent silencer is manufactured using copper plates and stainless (SUS) having no risk of explosions to minimize an edge that collide with oxygen gas, and includes a silencer body that receives cryogenic liquid gas and moves an internal space up and down to reduce noise; and a raising/lowering support portion that is installed along an outside of the silencer body and supports the silencer body by raising or lowering the silencer body from a ground.
    Type: Grant
    Filed: February 21, 2025
    Date of Patent: November 25, 2025
    Assignee: LET ENGINEERING CO., LTD.
    Inventors: Ju Sik Lee, Hyung Dong Lee, Sun Byeul Jo, Won Myeong Seo, Tae Kyu Kim, Dong Guen Lee
  • Publication number: 20250191564
    Abstract: The present disclosure relates to a liquid oxygen vent silencer used in an oxygen production process implemented so as to eliminate potentially explosive elements, and the vent silencer is manufactured using copper plates and stainless (SUS) having no risk of explosions to minimize an edge that collide with oxygen gas, and includes a silencer body that receives cryogenic liquid gas and moves an internal space up and down to reduce noise; and a body support that is installed along an outside of the silencer body and supports the silencer body by raising or lowering the silencer body from a ground.
    Type: Application
    Filed: February 21, 2025
    Publication date: June 12, 2025
    Applicant: LET ENGINEERING CO., LTD.
    Inventors: Ju Sik LEE, Hyung Dong LEE, Sun Byeul JO, Won Myeong SEO, Tae Kyu KIM, Dong Guen LEE
  • Publication number: 20250191563
    Abstract: The present disclosure relates to a liquid oxygen vent silencer implemented so as to eliminate potentially explosive elements, and the liquid oxygen vent silencer is manufactured using copper plates and stainless (SUS) having no risk of explosions to minimize an edge that collide with oxygen gas, and includes a silencer body that receives cryogenic liquid gas and moves an internal space up and down to reduce noise; and a raising/lowering support portion that is installed along an outside of the silencer body and supports the silencer body by raising or lowering the silencer body from a ground.
    Type: Application
    Filed: February 21, 2025
    Publication date: June 12, 2025
    Applicant: LET ENGINEERING CO., LTD.
    Inventors: Ju Sik LEE, Hyung Dong LEE, Sun Byeul JO, Won Myeong SEO, Tae Kyu KIM, Dong Guen LEE