Patents by Inventor Wen-Cheng Houg

Wen-Cheng Houg 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).

  • Patent number: 7328503
    Abstract: A recycling system is used for processing an engine oil filter and comprises a frame, a filter net, a cutting device, a dividing device, and a compressing device. Thus, all of the parts of the used engine oil filter can be divided, processed and reused respectively, thereby efficiently achieving the resource recycling purpose, and thereby preventing the used engine oil filter from causing environmental pollution.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: February 12, 2008
    Inventor: Wen-Cheng Houg
  • Publication number: 20050160590
    Abstract: A recycling system is used for processing an engine oil filter and comprises a frame, a filter net, a cutting device, a dividing device, and a compressing device. Thus, all of the parts of the used engine oil filter can be divided, processed and reused respectively, thereby efficiently achieving the resource recycling purpose, and thereby preventing the used engine oil filter from causing environmental pollution.
    Type: Application
    Filed: January 26, 2004
    Publication date: July 28, 2005
    Inventor: Wen-Cheng Houg
  • Patent number: 6895646
    Abstract: A hydraulic puller includes a hydraulic cylinder, a pump, an oil tank, and a clamping device. The clamping device includes a support seat, a plurality of pivot plates, a plurality of connecting plates, a plurality of claws, and an operation plate. Thus, the operation plate can be rotated by the user's hand to rotate and lift the clamping device so as to control operation of each of the claws, thereby facilitating the user operating the hydraulic puller.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: May 24, 2005
    Inventor: Wen-Cheng Houg