Patents by Inventor William J. Walter

William J. Walter 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).

  • Publication number: 20140377414
    Abstract: The disclosed single serve cup or beverage extraction cup includes a filter insert inside a cup body. The cup body has an open bottom and a plurality of side ports, and the filter insert is shaped to fit the cup body such that substantially all the side ports are fronted with filter material. Generally, the filter insert is bonded to the cup body, and covers the cup body open bottom.
    Type: Application
    Filed: June 25, 2014
    Publication date: December 25, 2014
    Inventor: William J. Walters
  • Patent number: 5992635
    Abstract: A flexible, gussetted package having an interior for holding some particulate material product, e.g., food stuffs, under vacuum, and which includes a mouth to be opened to provide access to the contents of the package. The package is formed of a flexible material and includes a front panel, a rear panel, a pair of opposed side gussets and a pressure equalizing valve. The valve includes a displaceable slitted-aperture disk located on a valve seat and is arranged to operate in a first mode of operation wherein any gasses within the package are allowed to vent to the exterior of the package, by passing through the interface between the disk and the valve seat while the ambient atmosphere is precluded from entering into the interior of the package. The valve also operates in a second, transitory, mode wherein the slitted aperture in the disk allows a small amount of the ambient atmosphere to gain ingress into the interior so that the package's walls give a smooth appearance.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: November 30, 1999
    Assignee: Fres-co System USA, Inc.
    Inventor: William J. Walters
  • Patent number: 5893461
    Abstract: A flexible, gussetted package having an interior for holding some particulate material product, under vacuum, and which includes a mouth to be opened to provide access to the contents of the package. The package is formed of a flexible material and includes a front panel, a rear panel, and a pair of opposed side gussets and a pressure equalizing valve. The valve is arranged to operate in a first mode of operation wherein any gasses within the package are allowed to vent to the exterior of the package, while the ambient atmosphere is precluded from entering into the interior of the package. The valve also operates in a second, transitory, mode wherein it allows a small amount of the ambient atmosphere to gain ingress into the interior so that the package's walls give a smooth appearance. The valve then enters into its third mode of operation wherein it isolates the interior of the package from the exterior.
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: April 13, 1999
    Assignee: Fres-co System USA, Inc.
    Inventor: William J. Walters
  • Patent number: 4052241
    Abstract: A method of bonding a flexible superstrate, such as a flexible finish sheet, to a contoured substrate, such as a contoured fiberboard, particularly in mass production. The disclosed method includes supporting the contoured substrate in a downwardly facing cavity of a female die. The substrate may be coated with adhesive before receipt in the die cavity. A flexible superstrate is then positioned beneath the die cavity on a flexible sealing sheet. The die is then closed and a vacuum is drawn through the die cavity and contoured substrate to draw the sealing sheet into the die cavity. The flexible superstrate or finish sheet is thus drawn in face-to-face contact with the contoured face of the substrate, bonding the finish sheet to the substrate.
    Type: Grant
    Filed: November 13, 1975
    Date of Patent: October 4, 1977
    Assignee: Detroit Gasket and Manufacturing Company
    Inventor: William J. Walter
  • Patent number: 3995607
    Abstract: An internal combustion engine for automotive vehicles is started and operated with decreased fuel enrichment when the engine is cold by delaying spark retard as the vehicle is accelerated to save fuel and reduce accumulated pollutants collected during warm up. A valve is provided between the carburetor spark port and the distributor vacuum advance cylinder to permit unrestricted airflow from the vacuum advance cylinder to the spark port at all temperatures and to restrict airflow from the spark port to the vacuum advance cylinder when the engine operating temperature is below a predetermined temperature. When the engine operating temperature attains the predetermined temperature airflow is unrestricted in both directions and the vacuum advance operates in a normal manner.
    Type: Grant
    Filed: April 14, 1975
    Date of Patent: December 7, 1976
    Assignee: The Bendix Corporation
    Inventors: George Ludwig, William J. Walters
  • Patent number: 3948232
    Abstract: An altitude compensated vacuum control system for regulating the vacuum servo mechanism of an internal combustion engine of the type having a distributor with a vacuum servo controlled advance mechanism incorporating a positive stop for maximum spark advance, a carburetor to provide a source of vacuum to operate said vacuum servo mechanism and a vacuum control valve assembly for regulating the vacuum servo mechanism of said distributor. The vacuum control valve assembly receives a spark port vacuum signal from the carburetor to maintain a predetermined vacuum spark advance as the engine begins to accelerate.
    Type: Grant
    Filed: May 10, 1974
    Date of Patent: April 6, 1976
    Assignee: The Bendix Corporation
    Inventors: Richard H. Gould, George Ludwig, William J. Walters, Remy J. VanOphem
  • Patent number: 3933166
    Abstract: An altitude compensated vacuum control system for regulating the vacuum servo mechanism of an internal combustion engine of the type having a distributor with a vacuum servo controlled advance mechanism incorporating a positive stop for maximum spark advance, a carburetor to provide a source of vacuum to operate said vacuum servo mechanism and a vacuum control valve assembly for regulating the vacuum servo mechanism of said distributor. The vacuum control valve assembly receives a spark port vacuum signal from the carburetor to maintain a predetermined vacuum spark advance as the engine begins to accelerate.
    Type: Grant
    Filed: March 17, 1975
    Date of Patent: January 20, 1976
    Assignee: The Bendix Corporation
    Inventors: Richard H. Gould, George Ludwig, William J. Walters, Remy J. VanOphem