Patents by Inventor Mario F. de la Guardia

Mario F. de la Guardia 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: 5738254
    Abstract: A repressurizing dispenser for removable attachment to the threaded neck of a carbonated beverage container includes a housing having an integrally formed handle and a hollow collar with a threaded seal ring therein for threaded engagement with the neck of the container and including a central opening in alignment with the discharge opening of the container. A bulb hand operated air pump is fitted within the handle and interconnects to the seal ring to permit introduction of air into the container's interior. A valve includes a half ball-shaped member and a through passage. The valve is movable between a closed position, wherein the half ball-shaped member is disposed in blocking, sealed engagement with the central opening of the seal ring, and an open position wherein the through passage is aligned with the central opening and discharge opening of the container, thereby permitting dispensing of the contents in the container.
    Type: Grant
    Filed: August 13, 1996
    Date of Patent: April 14, 1998
    Inventor: Mario F. de la Guardia
  • Patent number: 4326258
    Abstract: A method and apparatus for reducing the gray scale resolution of a document. The apparatus includes a scanning module for scanning a document along x and y coordinates with regard thereto for generating pixels representing gray scale values for discrete areas of the document along the x and y coordinates, with each pixel having a predetermined number of bits. A high pass filter module is also included for summing the associated pixels within a window to produce a window sum as the window is moved relatively along coordinates corresponding to the x and y coordinates, and the high pass filter module also includes means for comparing a selected pixel within a window with the associated window sum and predetermined criteria and for generating first and second output values in accordance therewith. The first and second output values have a fewer number of bits than the asssociated selected pixel.
    Type: Grant
    Filed: January 31, 1980
    Date of Patent: April 20, 1982
    Assignee: NCR Canada LTD - NCR Canada LTEE
    Inventor: Mario F. de la Guardia