1
Clement D Bouchard, Robert J Bryant, Lawrence B Gray, Geoff P Spencer: Pumping cartridge including a bypass valve and method for directing flow in a pumping cartridge. Deka Products Partnership, Wolf Greenfield & Sacks P C, July 9, 2002: US06416293 (293 worldwide citation)

Pumping cartridges are disclosed for use in pumping systems. One such cartridge includes a series of fluid flow paths therein and a bypass valve therein, the bypass valve can selectively block fluid flow along one or both of two fluid flow paths through the valve. In some embodiments, the pumping ca ...


2
Robert J Bryant, Lawrence B Gray, Geoff P Spencer: Methods and systems for detecting the presence of a gas in a pump and preventing a gas from being pumped from a pump. DEKA Products Partnership, Wolf Greenfield & Sacks P C, October 16, 2001: US06302653 (198 worldwide citation)

A method and system are disclosed for detecting the presence of a gas in a pump chamber of a pumping system. The methods, and systems employing the methods, involve isolating a pump chamber from its surroundings, for example by closing an inlet and outlet valve on lines to and from the chamber, and ...


3
Robert J Bryant, Lawrence B Gray, Geoff P Spencer: Methods and systems for pulsed delivery of fluids from a pump. DEKA Products Partnership, Wolf Greenfield & Sacks P C, August 12, 2003: US06604908 (159 worldwide citation)

A system is disclosed for pumping fluids at desired average flow rates by applying a predetermined force to a pump chamber and pulsing an outlet valve of the pump chamber to deliver a fluid therefrom. In some embodiments, pump chambers are provided within removable pumping cartridges that are constr ...


4
Robert J Bryant, Lawrence B Gray, Geoff P Spencer: Methods for controlling a pump's flow rate by pulsed discharge. Deka Products Partnership, Wolf Greenfield & Sacks P C, June 15, 2004: US06749403 (147 worldwide citation)

Methods and systems are disclosed for pumping fluids at desired average flow rates by applying a predetermined force to a pump chamber and pulsing an outlet valve of the pump chamber to deliver a fluid therefrom. In some embodiments, pump chambers are provided within removable pumping cartridges tha ...


5
Robert J Bryant, Larry B Gray, Geoff P Spencer: Systems for determining the volume of a volumetric chamber and pumping a fluid with a pump chamber. DEKA Products Partnership, Wolf Greenfield & Sacks P C, November 26, 2002: US06485263 (122 worldwide citation)

Reusable pump drive systems are disclosed that utilize pressurized fluids for creating a force on a flexible or moveable surface of a pump chamber of a pumping cartridge. One such system includes a variable sized orifice valve included as part of a fluid supply system, which valve is able to selecti ...


6
Robert J Bryant, Larry B Gray, Geoff P Spencer: Methods and systems for pulsed delivery of fluids from a pump. DEKA Products Partnership, Michael J Pomianek PhD, Wolf Greenfield & Sacks PC, May 12, 2005: US20050100450-A1 (1 worldwide citation)

Methods and systems are disclosed for pumping fluids at desired average flow rates by applying a predetermined force to a pump chamber and pulsing an outlet valve of the pump chamber to deliver a fluid therefrom. In some embodiments, pump chambers are provided within removable pumping cartridges tha ...


7
Robert J Bryant, Larry B Gray, Geoff P Spencer: Methods for pulsed delivery of fluids from a pump. Matthew B Lowrie, Wolf Greenfield & Sacks PC, October 16, 2003: US20030194328-A1

Methods and systems are disclosed for pumping fluids at desired average flow rates by applying a predetermined force to a pump chamber and pulsing an outlet valve of the pump chamber to deliver a fluid therefrom. In some embodiments, pump chambers are provided within removable pumping cartridges tha ...