Patents by Inventor Chang-Chun TSAI

Chang-Chun TSAI 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).

  • Multi-cylinder assembly
    Patent number: 10138909
    Abstract: A multi-cylinder assembly includes a cylinder assembly defining a bore and a piston-rod assembly slidably disposed in the bore of the cylinder assembly. The piston-rod assembly includes a piston rod, a piston-rod sleeve and a retainer. The piston rod includes a piston head, a first rod extending outwardly from the piston head and a rod extension extending outwardly from the first rod. The piston-rod sleeve is disposed about the rod extension of the piston rod. The piston-rod sleeve includes a head portion and a rod portion. The retainer is engaged to the rod extension. The retainer prohibits axial movement of the piston-rod sleeve.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: November 27, 2018
    Assignee: EATON INTELLIGENT POWER, LTD
    Inventors: Petrus Wilhelmus Maria Megens, Petrus Josephus Franciscus Claessens, Chang-Chun Tsai
  • High output hydraulic cylinder and piston arrangement
    Patent number: 10138912
    Abstract: Reciprocally moving an output rod mounted to a force transfer member includes applying hydraulic pressure to a first piston and cylinder device to operate the first piston and cylinder device in compression to move the force transfer member in a first direction; applying hydraulic pressure to a second piston and cylinder device to operate the second piston and cylinder device in compression to move the force transfer member in an opposite second direction; refraining from applying tension to the second piston and cylinder device while applying hydraulic pressure to the first piston and cylinder device; and refraining from applying tension to the first piston and cylinder device while applying hydraulic pressure to the second piston and cylinder device.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: November 27, 2018
    Assignee: Eaton Intelligent Power Limited
    Inventors: Chang-Chun Tsai, Sandeep Manohar Birje, Peter Megens
  • HIGH OUTPUT HYDRAULIC CYLINDER AND PISTON ARRANGEMENT
    Publication number: 20160273556
    Abstract: Reciprocally moving an output rod mounted to a force transfer member includes applying hydraulic pressure to a first piston and cylinder device to operate the first piston and cylinder device in compression to move the force transfer member in a first direction; applying hydraulic pressure to a second piston and cylinder device to operate the second piston and cylinder device in compression to move the force transfer member in an opposite second direction; refraining from applying tension to the second piston and cylinder device while applying hydraulic pressure to the first piston and cylinder device; and refraining from applying tension to the first piston and cylinder device while applying hydraulic pressure to the second piston and cylinder device.
    Type: Application
    Filed: November 5, 2014
    Publication date: September 22, 2016
    Inventors: Chang-Chun TSAI, Sandeep Manohar BIRJE, Peter MEGENS
  • MULTI-CYLINDER ASSEMBLY
    Publication number: 20160084273
    Abstract: A multi-cylinder assembly includes a cylinder assembly defining a bore and a piston-rod assembly slidably disposed in the bore of the cylinder assembly. The piston-rod assembly includes a piston rod, a piston-rod sleeve and a retainer. The piston rod includes a piston head, a first rod extending outwardly from the piston head and a rod extension extending outwardly from the first rod. The piston-rod sleeve is disposed about the rod extension of the piston rod. The piston-rod sleeve includes a head portion and a rod portion. The retainer is engaged to the rod extension. The retainer prohibits axial movement of the piston-rod sleeve.
    Type: Application
    Filed: May 7, 2014
    Publication date: March 24, 2016
    Inventors: Petrus Wilhelmus Maria MEGENS, Petrus Josephus Franciscus CLAESSENS, Chang-Chun TSAI