Patents by Inventor Tsai-Tien He

Tsai-Tien He 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: 7559098
    Abstract: A motion control apparatus for a hospital bed includes an axial shaft passing through two wheel modules. Three pedals capable of swinging upwardly and downwardly are pivotally disposed on the chassis in parallel. Driving components are fixedly disposed in opposite directions on the axial shaft corresponding to the pedals on two sides. A coupler is disposed between each driving component and pedal. When one of the two pedals on the two sides is stepped on downwardly, the axial shaft is driven to turn and results in braking of the wheel modules. When the middle pedal is stepped on downwardly, the other pedals gathered together swing downwardly at the same time, and the pedals on the two sides come to lean on the middle pedal at the same time and stop, resulting in disabling of the braking or orientation function.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: July 14, 2009
    Assignee: Sigma-Care Development Co., Ltd.
    Inventor: Tsai-Tien He
  • Publication number: 20080047065
    Abstract: A motion control apparatus for a hospital bed relates to a hospital bed provided with a plurality of wheel modules. An axial shaft passes through two wheel modules and moves together with the wheel modules. Three pedals capable of swinging upwardly and downwardly are pivotally disposed on the chassis in parallel. Two sides of the middle pedal lean on the pedals on two sides. Driving components are fixedly disposed in opposite directions on the axial shaft corresponding to the pedals on the two sides. A coupler is disposed between each driving component and pedal. When one of the two pedals on the two sides is stepped on downwardly, the axial shaft is driven to turn and results in the breaking of the wheel modules or where at least one wheel module cannot change direction thereof.
    Type: Application
    Filed: July 25, 2007
    Publication date: February 28, 2008
    Inventor: Tsai-Tien He