Patents by Inventor V. Sam Kumar

V. Sam Kumar 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: 4750768
    Abstract: This all pneumatic vacuum gripper which utilizes a fluid amp sensor senses an object when the object comes in contact with vacuum cup. This activates the main venturi vacuum generator which provides the vacuum force necessary to `grip` the object to be lifted. An external release signal cuts the vacuum `off` to release the object. Vacuum power is generated only when lifting the object thus saving energy and also minimizing ambient noise. Sensitivity of pick-up level is also adjustable. The preferred embodiment of the all pneumatic vacuum gripper utilizes fluid logic sensing and processing, senses an object when the object comes in contact with the vacuum cup. This activates the main venturi vacuum generator which provides the vacuum force necessary to "grip" the object to be lifted. The fluid logic circuit automatically locks the vacuum in the suction cup while turning "off" the power supplied to the main venturi after a predetermined period of time.
    Type: Grant
    Filed: May 15, 1986
    Date of Patent: June 14, 1988
    Inventor: V. Sam Kumar