Patents by Inventor Paul E. Naslund

Paul E. Naslund 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: 20120255973
    Abstract: A chemical concentrate reservoir system for use with a hand held trigger sprayer device and a bottle reservoir includes a chemical reservoir for containing a chemical concentrate; a first adapter connected with the chemical reservoir and having a mixing chamber with at least one inlet and an outlet; wherein the bottle reservoir and the chemical reservoir are in fluid communication with the mixing chamber through said at least one inlet; a first valve at the inlet of the mixing chamber for selective control of fluid flow into said mixing chamber; and a fluid conduit connected with the outlet of the mixing chamber and with the hand held trigger sprayer device.
    Type: Application
    Filed: April 6, 2011
    Publication date: October 11, 2012
    Applicant: DEMA ENGINEERING COMPANY
    Inventors: James M. Schlueter, Paul E. Naslund, Frederick B. Jedlicka, Kenton Marsh
  • Publication number: 20080087687
    Abstract: A fluid dispenser includes a diluent fluid inlet; a fluid-driven proportioning air pump in fluid communication with a diluent fluid inlet, the air pump being driven by fluid from the diluent fluid inlet and having an air outlet isolated from the diluent fluid inlet; a fluid container having first and second openings, the first opening in fluid communication with the pump air outlet; and wherein the pump creates air pressure and flow to evacuate the container of fluid through the second opening. An associated method of evacuating fluid from a container includes supplying a diluent fluid to the proportioning air pump through the pump fluid inlet; delivering a volume of air from the pump air outlet to the container in order to displace a similar volume of fluid and evacuate that volume of fluid from the container; and diluting the evacuated fluid with diluent fluid from the pump fluid outlet.
    Type: Application
    Filed: October 11, 2006
    Publication date: April 17, 2008
    Inventors: Paul E. Naslund, Fred B. Jedlicka
  • Patent number: 7331488
    Abstract: An apparatus for selective eductive dispensing of multiple chemical fluids from separate fluid containers includes a motive fluid inlet; an eductor in fluid communication with said motive fluid inlet; a selector switch defining at least one inlet and an outlet therein, said inlet and outlet in fluid communication with one another and said outlet in fluid communication with said eductor and wherein said selector switch inlet is in selective fluid communication with said fluid containers depending on the position of the selector switch; and a valve located between said motive fluid inlet and said eductor, said valve selectively opened and closed by movement of said selector switch.
    Type: Grant
    Filed: November 15, 2004
    Date of Patent: February 19, 2008
    Assignee: Dema Engineering Company
    Inventors: Paul E. Naslund, James Schuleter
  • Patent number: 6648003
    Abstract: This backflow preventer includes a body having an upper portion providing an inlet and a lower portion providing an outlet. The body includes a backflow preventer having a nozzle communicating with the inlet, a passage communicating with the outlet and a diaphragm disposed between the nozzle and the passage. The diaphragm is maintained in the closed position by a resilient element and is movable under inlet water pressure from a closed position to an open position. The diaphragm is moved into the closed position by reverse back-up flow assisted by the resilient element and a relief gap is provided below the diaphragm to permit escape of reverse backflow.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: November 18, 2003
    Assignee: Dema Engineering Company
    Inventors: Bruce Weber, Paul E. Naslund
  • Patent number: 6607174
    Abstract: This dispensing apparatus includes a shut-off valve having a magnetically actuated valve element. The valve element is moved into an open position by magnetic attraction from a magnet mounted to a movable actuator. The actuator is adapted to be raised by a liftable handle connected to the actuator or by application of an upward force applied by a bottle container to the actuator. In both cases, the valve element is moved vertically by the application of a vertical force to the actuator.
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: August 19, 2003
    Assignee: Dema Engineering Company
    Inventors: Bruce Weber, Paul E. Naslund
  • Publication number: 20030071234
    Abstract: This dispensing apparatus includes a shut-off valve having a magnetically actuated valve element. The valve element is moved into an open position by magnetic attraction from a magnet mounted to a movable actuator. The actuator is adapted to be raised by a liftable handle connected to the actuator or by application of an upward force applied by a bottle container to the actuator. In both cases, the valve element is moved vertically by the application of a vertical force to the actuator.
    Type: Application
    Filed: October 17, 2001
    Publication date: April 17, 2003
    Inventors: Bruce Weber, Paul E. Naslund
  • Publication number: 20030024569
    Abstract: This backflow preventer includes a body having an upper portion providing an inlet and a lower portion providing an outlet. The body includes a backflow preventer having a nozzle communicating with the inlet, a passage communicating with the outlet and a diaphragm disposed between the nozzle and the passage. The diaphragm is maintained in the closed position by a resilient element and is movable under inlet water pressure from a closed position to an open position. The diaphragm is moved into the closed position by reverse back-up flow assisted by the resilient element and a relief gap is provided below the diaphragm to permit escape of reverse backflow.
    Type: Application
    Filed: August 2, 2001
    Publication date: February 6, 2003
    Inventors: Bruce Weber, Paul E. Naslund
  • Patent number: 5797420
    Abstract: This proportioner (10) is used in conjunction with a water supply connector (12) to provide a fluid mixing device for water and liquid detergent. The proportioner (10) includes a valve body (20) providing an inlet nozzle (14) and an air gap chamber (15) and an outlet (18) housing a venturi system (16). The venturi system (16) includes a venturi nozzle (40) aligned with the inlet nozzle (14) and having deflecting flats (42), a venturi tube (46) and a venturi throat (52) communicating with a detergent induction fitting (50).
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: August 25, 1998
    Assignee: Dema Engineering Co.
    Inventors: Michael L. Nowicki, Paul E. Naslund
  • Patent number: 5518020
    Abstract: This proportioner (10) is used in conjunction with a water supply connector (12) to provide a fluid mixing device for water and liquid detergent. The proportioner (10) includes a valve body (20) providing an inlet nozzle (14) and an air gap chamber (15) and an outlet (18) housing a venturi system (16). The venturi system (16) includes a venturi nozzle (40) aligned with the inlet nozzle (14) and having deflecting flats (42), a venturi tube (46) and a venturi throat (52) communicating with a detergent induction fitting (50).
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: May 21, 1996
    Assignee: Dema Engineering Co.
    Inventors: Michael L. Nowicki, Paul E. Naslund