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 (309 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
Lawrence B Gray: Pump chamber having at least one spacer for inhibiting the pumping of a gas. DEKA Products Partnership, Wolf Greenfield & Sacks P C, May 7, 2002: US06382923 (211 worldwide citation)

Pump chambers are disclosed that include at least one spacer element therein to prevent any gas in the pump chamber from being pumped from the pump chamber during pumping. In some embodiments, the pump chambers are included in removable pumping cartridges that are constructed and configured for coup ...


3
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 (203 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 ...


4
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 (167 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 ...


5
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 (154 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 ...


6
Lawrence B Gray: Pump chamber having at least one spacer for inhibiting the pumping of a gas. DEKA Products Partnership, Wolf Greenfield & Sacks P C, December 16, 2003: US06663359 (140 worldwide citation)

Pump chambers are disclosed that include at least one spacer element therein to prevent any gas in the pump chamber from being pumped from the pump chamber during pumping. In some embodiments, the pump chambers are included in removable pumping cartridges that are constructed and configured for coup ...


7
Clement D Bouchard, Lawrence B Gray: Pumping cartridge having an integrated filter and method for filtering a fluid with the cartridge. Deka Products Partnership, Wolf Greenfield & Sacks P C, June 14, 2005: US06905479 (130 worldwide citation)

The present invention involves, in some embodiments, reusable pump drive systems, which are coupled to removable, and preferably disposable, pumping cartridges. The invention provides, in some embodiments, novel pumping cartridges for use in pumping systems. One such cartridge includes an integrated ...


8
Lawrence B Gray, Richard J Lanigan: Tube occluder and method for occluding collapsible tubes. Deka Products Partnership, Wolf Greenfield & Sacks PC, April 12, 2005: US06877713 (127 worldwide citation)

The present invention involves, in some embodiments, mechanisms and methods of occluding collapsible tubing with an occluder to prevent fluid flow therethrough. In some embodiments, a tube occluding mechanism is disclosed that includes a bendable occluding member for creating a force that can be app ...