Patents by Inventor Danfeng LONG

Danfeng LONG 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).

  • Pipeline assembly and air conditioning system
    Patent number: 12253191
    Abstract: A pipeline assembly and an air conditioning system. The pipeline assembly includes a first steel pipe, a second steel pipe, a first copper sleeve and a second copper sleeve, wherein the first copper sleeve is fixed at an end of the first steel pipe, and the first copper sleeve includes a first section sleeved on the periphery of the first steel pipe and a second section extending beyond the end of the first steel pipe; the second copper sleeve is fixed at an end of the second steel pipe, and the second copper sleeve is sleeved on the peripheral side of the second steel pipe; and the second section and at least part of the second copper sleeve are sleeved with and welded to each other.
    Type: Grant
    Filed: December 10, 2021
    Date of Patent: March 18, 2025
    Assignees: GD MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD., HEFEI MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD.
    Inventors: Danfeng Long, Yandong Wu, Tiegang Zhang, Min Zhong
  • PIPELINE ASSEMBLY AND AIR CONDITIONING SYSTEM
    Publication number: 20240200696
    Abstract: A pipeline assembly and an air conditioning system. The pipeline assembly includes a first steel pipe, a second steel pipe, a first copper sleeve and a second copper sleeve, wherein the first copper sleeve is fixed at an end of the first steel pipe, and the first copper sleeve includes a first section sleeved on the periphery of the first steel pipe and a second section extending beyond the end of the first steel pipe; the second copper sleeve is fixed at an end of the second steel pipe, and the second copper sleeve is sleeved on the peripheral side of the second steel pipe; and the second section and at least part of the second copper sleeve are sleeved with and welded to each other.
    Type: Application
    Filed: December 10, 2021
    Publication date: June 20, 2024
    Inventors: Danfeng LONG, Yandong WU, Tiegang ZHANG, Min ZHONG