Deka Products Limited Partnership

Fourth Floor Associates, Inc.

Activeshock, Inc.

Caterpillar Inc.

Beacon Power Corporation

William T Larkins

Dean Kamen

Robert Manning

Richard J Lanigan

Jason A Demers

Kevin L Grant

Marc Aurele Mandro

Charles M Grinnell

Dennis Gilbreath

Philip R Houle

John A LaPlante

Larry B Gray

Valentine Faust

Edward Lanzilotta

Damian Harty

Russell Herbert Beavis

Peter Andrew Lund

Richard L Hockney

Michael S Contratto

Vladislav Davidkovich

Geoff B Lansberry

R Kurt Heinzmann

Emil Muchnik

John A Laplante

John Laplante

A component vibration control system is disclosed. The vibration control system includes a first physical end stop, a second physical end stop, a damper assembly, a position sensor configured to determine a component position, and a processor in communication with the position sensor and the damper assembly. The processor is configured to set a first virtual end stop position, regulate a damping force of the damper assembly as the component moves toward the first virtual end stop position, and determine a second virtual end stop position based on a first distance of the component from a set position.

Vibration control system with virtual end stops

A disposable cassette for mixing a drug in a vial includes a liquid inlet for connection to a liquid supply, a first vial spike, a second vial spike, a chamber and a valve mechanism. The chamber, the first and second vial spikes, and the liquid inlet are in fluid communication with each other. The valve mechanism may be actuated to control flow between the chamber, the vial receptacles and the liquid inlet.

System and method for drug preparation and delivery

A ride height control system and method may be used to control load distribution at wheel locations in a vehicle suspension system at target ride height. Load distribution may be controlled by adjusting the forces applied by the suspension system at respective wheel locations while maintaining a target ride height. In an exemplary air spring suspension system or hydropneumatic suspension system, the applied forces may be adjusted by adjusting the pressure in the suspension system at the respective wheel locations. The ride height control system and method may determine and establish balanced target ride height forces (e.g., planar forces) to be applied at the wheel locations of the vehicle to prevent a cross-jacking condition. The ride height control system and method may also determine and establish target ride height forces for a vehicle on an uneven surface to prevent imbalances caused by wheel displacement.

Ride height control system and method for controlling load distribution at target ride height in a vehicle suspension system

A ride height control system and method may be used to control load distribution at wheel locations in a vehicle suspension system at target ride height. Load distribution may be controlled by adjusting the forces applied by the suspension system at respective wheel locations while maintaining a target ride height. In an exemplary air spring suspension system or hydropneumatic suspension system, the applied forces may be adjusted by adjusting the pressure in the suspension system at the respective wheel locations. The ride height control system and method may determine and establish balanced target ride height forces (e.g., planar forces) to be applied at the wheel locations of the vehicle to prevent a cross-jacking condition.

A system and method for controlling an electrically controlled pressure relief valve may use a soft position control loop to control the position of the valve. A pressure relief valve may also include a modified orifice shape to improve stability, to uniformly distribute the effective bandwidth over the valve operating range, and to provide a tunable default mode.

Electrically controlled pressure relief valve and system and method for controlling same

Cassette and method for drug preparation and delivery

A disposable cassette for mixing an intravenous drug in a vial to a patient includes a liquid inlet for connection to a liquid supply, a first vial spike, a second vial spike and a chamber. The chamber, the first and second vial spikes, and the liquid inlet are in fluid communication with each other. A valve mechanism may be actuated to control flow between the chamber, the vial receptacles and the liquid inlet.

A semi-active control methodology is provided for a spring/mass system, for example a real-time adjustable shock absorber system. The methodology includes defining a plurality of operating zones based on system parameters and user-definable or preset inputs. The methodology also includes processing to account for non-inertial spring/mass system response and multidimensional forces acting on the system, and an acceleration hedge calculation to accurately define system operation at extrema of travel. The methodology is generally directed at producing a plurality of valve control signals, selecting among the valve control signals, and applying the selected control signal to the valve in a closed-loop feedback system to adjust the energy in the spring/mass system.

Semi-active shock absorber control system

A system and method for the preparation and delivery of intravenous drugs includes a liquid inlet for connection to a liquid supply and vial receptacles. The system may also include a liquid outlet for providing the intravenous drug in mixed, liquid form to the patient. The system may include a chamber having a variable volume, and a valve mechanism, which may be actuated to control flow between the liquid outlet, the variable-volume chamber, the vial receptacles and the liquid inlet. The liquid inlet, the vial receptacles, the variable-volume chamber, the liquid outlet and the valve mechanism may be located in a disposable cassette, which may be received in a control unit.

System for controlling flow through a line during intravenous drug delivery

A valve ( ) for use in controlling the flow of IV fluid from a source to a patient. A cassette may include along the fluid passage through the cassette, first and second membrane-based valves ( ) on either side of a pressure-conduction chamber ( ), and a stopcock-type valve ( ). The stopcock valve is preferably located downstream of the second membrane-based valve ( ), which is preferably located downstream of the pressure-conduction chamber ( ). The membrane defining the valving chamber of the second membrane-based valve ( ) is preferably large and resilient, so that the valving chamber( ) may provide a supply of pressurized intravenous fluid to the patient, when the valve ( ) is closed and the stopcock valve ( ) provides a restriction downstream of the valve ( ). The pressure-conduction chamber ( ) preferably has a membrane ( ) that is stable in the empty-chamber position but relatively unstable in the filled-chamber position.

Valve for intravenous-line flow-control system

An electrical energy storage system for supplying power to a load comprises a plurality of flywheel energy storage systems, each supplying a power output signal, and a connector circuit. The connector circuit connects the flywheel energy storage systems to the load, but the flywheel energy storage systems are not connected to each other. Each of the flywheel energy storage systems comprises a flywheel turning at an initially predetermined rate, a motor/generator coupled to the flywheel, a bi-directional inverter circuit coupled to the motor/generator and to the load, and a control circuit coupled to the motor/generator and the bi-directional inverter circuit. The control circuit controls the power output signal of the flywheel energy storage system independently of the other flywheel energy storage systems.

Multiple flywheel energy storage system

A bedside-pharmacy system for the preparation and delivery of intravenous drugs. The system includes a liquid inlet for connection to a liquid supply, vial receptacles, and a liquid outlet for providing the intravenous drug in mixed, liquid form to the patient. The system may include a chamber having a variable volume, and a valve mechanism, which may be actuated to control flow between the liquid outlet, the variable-volume chamber, the vial receptacles and the liquid inlet. The system induces change in the volume of the variable-volume chamber and actuates the valve mechanism, so as to introduce liquid from the liquid inlet into the vials and reconstitute or dilute the drugs and so as to deliver the drugs to the patient. In a preferred embodiment, the liquid inlet, the vial receptacles, the variable-volume chamber, the liquid outlet and the valve mechanism (in other words, all components that come into contact with the liquid) are located in a disposable cassette, which may be received in a control unit. The system may include means for changing the chamber volume and actuating the valves so as to move the liquid repeatedly between a vial and the chamber. After the drug has been reconstituted, the system may cause the drug to be further diluted by providing an additional volume of liquid to be mixed with the drug. The system may further include a second chamber for delivery of the drug to the patient in precise quantities.

Method and cassette for delivering intravenous drugs

A cassette for use in controlling the flow of IV fluid from a patient to a source. The cassette may include along the fluid passage through the cassette, first and second membrane-based valves ( ) on either side of a pressure-conduction chamber ( ), and a stopcock-type valve ( ). The stopcock valve is preferably located downstream of the second membrane-based valve ( ), which is preferably located downstream of the pressure-conduction chamber ( ). The membrane defining the valving chamber of the second membrane-based valve ( ) is preferably large and resilient, so that the valving chamber ( ) may provide a supply of pressurized intravenous fluid to the patient, when the valve ( ) is closed and the stopcock valve ( ) provides a restriction downstream of the valve ( ). The pressure-conduction chamber ( ) preferably has a membrane ( ) that is stable in the empty-chamber position but relatively unstable in the filled-chamber position.

Growing community of inventors

Manchester, NH, United States of America

William T Larkins