Patents by Inventor Pravin G. Pitroda

Pravin G. Pitroda 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: 4585145
    Abstract: A dispenser for bill straps has an integrally-formed presser extending upward from the bottom of the dispenser to urge one end of a stack of such bill straps upward to a site at which the straps can be withdrawn. Rubber-like edge guides keep the stack aligned and provides pressure on the edges of the bill straps in the stack to facilitate withdrawal of individual straps. Another embodiment provides such apparatus with multiple stations for storage and dispensing of straps preprinted in several different denominations.
    Type: Grant
    Filed: December 10, 1984
    Date of Patent: April 29, 1986
    Inventor: Pravin G. Pitroda
  • Patent number: 4432105
    Abstract: A plumbing device stores one or more additives, and allows injection and mixing of such additives into the water stream delivered to a plumbing fixture such as a shower head or faucet. The design of the passage for the water stream provides a pressure differential sufficient to draw the additive into the water stream, while check valves are used to prevent backflow of additives. A mixing chamber, with an impeller element, mixes the injected material with the water stream. Metering valves may be used to control the amount of additive dispensed.
    Type: Grant
    Filed: November 18, 1981
    Date of Patent: February 21, 1984
    Inventor: Pravin G. Pitroda