Patents by Inventor James C. Pfautz

James C. Pfautz 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: 5897032
    Abstract: This invention is a spray bottle having unique flow passages that when wetted provide restrictions that allow only liquid to be dispensed either in the upright or inverted position. A gas rejection device of numerous configurations are incorporated into the spray bottle with minimum or no additional cost to manufacturing the spray bottle. Liquid rejection devices permit air to replace the dispensed liquid in order to prevent the collapse of the plastic bottle without leaking liquid in the inverted position.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: April 27, 1999
    Inventors: M. Edmund Ellion, James C. Pfautz
  • Patent number: 5875933
    Abstract: A dispensing spray container which delivers only liquid whether in the upright or inverted position. A container with an exit port from a storage cavity is fitted with an imperforate dip tube having an open-end located farthest from the exit port to feed the liquid when the container is in the upright position. In circuit with the dip tube is a porous element located nearest to the exit port whose surface conditions are such that when wetted by the liquid will from a force resulting from the liquid surface tension to prevent the gas from passing when the container is in the upright position and which will pass liquid when held in the inverted position.
    Type: Grant
    Filed: August 15, 1997
    Date of Patent: March 2, 1999
    Inventors: M. Edmund Ellion, James C. Pfautz
  • Patent number: 5624060
    Abstract: In a dispensing system such as a pressurized can or hand-pumped bottle, a liquid to be dispensed from a container flows through a composite dip tube that feeds an inlet of a liquid transfer device. The dip tube includes a straight dip tube that extends from the inlet to the bottom of the container and a U-shaped tube that extends from the inlet to the bottom of the container and then returns to the top of the interior of the container. The U-shaped tube acts as a siphon that, in combination with the conventional tip tube, provides liquid to the liquid transfer device when the container is upright, inverted, or oriented in any other position as long as one of the two open ends of the dip tube is in communication with the liquid.
    Type: Grant
    Filed: May 2, 1995
    Date of Patent: April 29, 1997
    Inventors: M. Edmund Ellion, James C. Pfautz
  • Patent number: 5497911
    Abstract: This invention relates to a hand-pump or pressurized container that can dispense the contents when held at any orientation. A flexible bladder with a dip tube having multiple openings in order to provide a flow path for the liquid regardless of the orientation of the container. In another embodiment, the liquid path is provided by the configuration of the inner surface of the bladder without the need of a dip tube.
    Type: Grant
    Filed: September 2, 1994
    Date of Patent: March 12, 1996
    Inventors: M. Edmund Ellion, James C. Pfautz