Patents by Inventor Benjamin Ole Sten Helshoj

Benjamin Ole Sten Helshoj 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).

  • Fixing device for the dust bag of a dust collector
    Patent number: 10799822
    Abstract: A fixing device for the dust bag of a dust collector includes a dust collector provided with a wind guide box having its lower side formed with a stuff falling opening, which extends downward to form a ring body. The wind guide box has its outer circumference provided with two tightening units, and an annular frame is connected between the two tightening units and positioned beneath the ring body. The two tightening units can adjust the annular frame to be at a first position or at a second position able to quickly fix or disassemble the dust bag of a dust collector.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: October 13, 2020
    Assignee: SAN FORD MACHINERY CO., LTD.
    Inventors: Yuan-Tai Cheng, Benjamin Ole Sten Helshoj
  • FIXING DEVICE FOR THE DUST BAG OF A DUST COLLECTOR
    Publication number: 20200061508
    Abstract: A fixing device for the dust bag of a dust collector includes a dust collector provided with a wind guide box having its lower side formed with a stuff falling opening, which extends downward to form a ring body. The wind guide box has its outer circumference provided with two tightening units, and an annular frame is connected between the two tightening units and positioned beneath the ring body. The two tightening units can adjust the annular frame to be at a first position or at a second position able to quickly fix or disassemble the dust bag of a dust collector.
    Type: Application
    Filed: August 23, 2018
    Publication date: February 27, 2020
    Inventors: Yuan-Tai CHENG, Benjamin Ole Sten Helshoj