Patents by Inventor William L. Merkle

William L. Merkle 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: 7357142
    Abstract: An apparatus for continuously aspirating a fluid from a fluid source. A vacuum source is operatively connected to a first container forming a first chamber and a second container forming a second chamber. A fluid collection tube provides communication between the fluid source and each of the first chamber and the second chamber. A first level sensor is positioned within the first chamber and a second level sensor is positioned within the second chamber. Upon receiving a signal generated by one of the first level sensor and the second level sensor, a relay responsively exposes a vacuum within one of the first chamber and the second chamber to continuously aspirate at least a portion of the fluid from the fluid source. A shut-off valve is preferably positioned within each of the first chamber and the second chamber to prevent communication between the vacuum source and the corresponding chamber with a fluid level within the chamber at a fluid level setpoint.
    Type: Grant
    Filed: December 31, 2004
    Date of Patent: April 15, 2008
    Assignee: MD Technologies inc.
    Inventor: William L. Merkle
  • Patent number: 7244236
    Abstract: A specimen trap including a container forming a chamber. A strainer is fixedly positioned within the chamber and defines an upper portion of the chamber and a lower portion of the chamber. The strainer has a porous surface that provides fluidic communication between the upper portion and the lower portion. One tube connection is mounted to the cap and forms a passage through the cap and another tube extends through the cap and through the strainer into the lower portion. The cap is rotatable with respect to the container to form communication between one of the specimen compartments and the one tube connection passage for collection of an independent specimen.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: July 17, 2007
    Assignee: M D Technologies inc.
    Inventor: William L. Merkle
  • Publication number: 20040230135
    Abstract: A specimen trap including a container forming a chamber. A strainer is fixedly positioned within the chamber and defines an upper portion of the chamber and a lower portion of the chamber. The strainer has a porous surface that provides fluidic communication between the upper portion and the lower portion. A plurality of supports are connected to the strainer, and extend to a bottom surface of the container to maintain the strainer in a fixed position within the chamber. A cap is mounted with respect to the container. A first tube connection is mounted to the cap and forms a passage through the cap and in communication with the upper portion. A second tube extends through the cap and through the strainer into the lower portion, and forms a passage in communication with the lower portion. The second tube forms a shoulder that interferes with the strainer to maintain the strainer in the fixed position within the chamber.
    Type: Application
    Filed: May 17, 2004
    Publication date: November 18, 2004
    Inventor: William L. Merkle
  • Patent number: 5558691
    Abstract: An adjustable vibrating plate cullet feeder for feeding recycle glass to melting furnaces. Independent control of the rate of cullet feed is obtained by adjustment of at least one of: the angle of the feeder plate, the intensity of the vibration, and the frequency of the vibration. The vibrating plate cullet feeder may be positioned to feed over a batch charger or may feed directly into the melting furnace and may be controlled by the batch charger or independently by a furnace level or composition controller.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: September 24, 1996
    Assignee: Merkle Engineers, Inc.
    Inventors: Larry L. Horn, Barry R. James, William L. Merkle, William R. Materna, Stephen J. Coates
  • Patent number: 5542804
    Abstract: A modular solids charger for feeding granular solid material to a reactor, the charger comprising a chassis, a charger plate support frame vertically and angularly adjustable with respect to the horizontal secured to the chassis, a removable reciprocable charger plate reciprocably secured to the charger plate support frame, a removable solids supply chute disposed above the reciprocable charger plate for feeding solids to the reciprocable charger plate, spacers for adjusting the elevation of the chassis to accommodate a range of elevations of reactor feed openings, and charger plate support frame extensions to enable the charge plate support frame to accommodate a range of reciprocable charger plate widths.
    Type: Grant
    Filed: August 25, 1994
    Date of Patent: August 6, 1996
    Assignee: Merkle Engineers, Inc.
    Inventors: Frank P. Merkle, Larry L. Horn, Barry R. James, William L. Merkle
  • Patent number: 5133374
    Abstract: An apparatus for transmitting infections medical waste to a sewer without personnel exposure employing a closed container having a waste tube and a suction tube extending thereinto. The waste is transmitted from an endoscope or other source into the container and the container is drained to a sewer under control of a vacuum applied to the inside of the container. The automated container drainage affords virtually unlimited container volume for improved cleaning of instrument internal channels.
    Type: Grant
    Filed: April 1, 1991
    Date of Patent: July 28, 1992
    Inventors: Kevin W. Druding, William L. Merkle