Patents by Inventor SHUIWANG FAN

SHUIWANG FAN 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).

  • Combination hydraulic and pneumatic door closer
    Patent number: 9920561
    Abstract: A door closer capable of adjusting door closing speed, includes a pneumatic cylinder on the door frame, a hydraulic cylinder on the door, and a lever. One end of the lever is movably connected to the pneumatic cylinder, and the other end is connected to the hydraulic cylinder. The pneumatic cylinder includes a sliding rail, and a sliding member cooperated with the sliding rail. A hermetic chamber is formed by the sliding member and the sliding rail. An adjusting valve, for adjusting the air exhaust of the hermetic chamber, is provided on a wall of the hermetic chamber.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: March 20, 2018
    Assignee: Cmech (Guangzhou) Ltd.
    Inventor: Shuiwang Fan
  • COMBINATION HYDRAULIC AND PNEUMATIC DOOR CLOSER
    Publication number: 20170081892
    Abstract: A door closer capable of adjusting door closing speed, includes a pneumatic cylinder on the door frame, a hydraulic cylinder on the door, and a lever. One end of the lever is movably connected to the pneumatic cylinder, and the other end is connected to the hydraulic cylinder. The pneumatic cylinder includes a sliding rail, and a sliding member cooperated with the sliding rail. A hermetic chamber is formed by the sliding member and the sliding rail. An adjusting valve, for adjusting the air exhaust of the hermetic chamber, is provided on a wall of the hermetic chamber.
    Type: Application
    Filed: October 26, 2016
    Publication date: March 23, 2017
    Inventor: Shuiwang Fan
  • Door closer capable of adjusting its closing speed
    Patent number: 9556659
    Abstract: A door closer capable of adjusting its closing speed, including a gas adjusting apparatus arranged on the door frame, a driving apparatus arranged on the door, and a lever is provided. One end of the lever is movably connected to the gas adjusting apparatus, and the other end is connected to the driving apparatus. The gas adjusting apparatus includes a sliding rail arranged on the door frame, and a sliding member cooperated with the sliding rail; a hermetic chamber is formed by the sliding member and the sliding rail, an adjusting member, for adjusting the exhaust of the hermetic chamber, is configured on a side wall of the hermetic chamber. The lever is movably configured on the sliding member.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: January 31, 2017
    Assignee: Cmech (Guangzhou Industrial Ltd.)
    Inventor: Shuiwang Fan
  • DOOR CLOSER CAPABLE OF ADJUSTING ITS CLOSING SPEED
    Publication number: 20160362924
    Abstract: A door closer capable of adjusting its closing speed, including a gas adjusting apparatus arranged on the door frame, a driving apparatus arranged on the door, and a lever is provided. One end of the lever is movably connected to the gas adjusting apparatus, and the other end is connected to the driving apparatus. The gas adjusting apparatus includes a sliding rail arranged on the door frame, and a sliding member cooperated with the sliding rail; a hermetic chamber is formed by the sliding member and the sliding rail, an adjusting member, for adjusting the exhaust of the hermetic chamber, is configured on a side wall of the hermetic chamber. The lever is movably configured on the sliding member.
    Type: Application
    Filed: July 9, 2015
    Publication date: December 15, 2016
    Inventor: SHUIWANG FAN