David J Dolan

US Patent:

6440076, Aug 27, 2002

Filed:

Nov 9, 2000

Appl. No.:

09/711055

Inventors:

Wojtek Sudol - North Andoer MA
Francis E. Gurrie - North Andover MA
David P Dolan - Londonderry NH

Assignee:

Koninklijke Philips Electronics N.V. - Eindhoven

International Classification:

A61B 0800

US Classification:

600459, 600460

Abstract:

An ultrasound transducer connector for connecting a transducer to a terminal on an ultrasound unit, the ultrasound transducer connector including a shell; a LIF connector supported by the shell; and a cable electrically connected to the LIF connector that electrically connects the LIF connector to the transducer.

US Patent:

6629928, Oct 7, 2003

Filed:

Nov 8, 2002

Appl. No.:

10/291059

Inventors:

David P. Dolan - Londonderry NH
Richard H. Jundanian - Methuen MA

Assignee:

Koninklijke Philips Electronics N.V. - Eindhoven

International Classification:

A61B 800

US Classification:

600437, 600459

Abstract:

An ultrasound system, comprising: a plurality of interchangeable transducer connector modules (TCMs), wherein each TCM includes an ultrasound connector, a switching circuit, and a pluggable interface; and an ultrasound control unit, wherein the ultrasound control unit includes: a plurality of bays, each for receiving and pluggably coupling one of the TCMs into a distribution bus of the ultrasound control unit, and a system controller for selecting one of the plurality of TCMs and for activating the switching circuit of the selected TCM.

US Patent:

6983783, Jan 10, 2006

Filed:

Sep 11, 2003

Appl. No.:

10/660061

Inventors:

Michael E. Lockley - Bethlehem PA, US
Justin J. Mierta - Emmaus PA, US
David J. Dolan - Bethlehem PA, US
Thomas W. Brenner - Wescosville PA, US

Assignee:

Lutron Electronics Co., Inc. - Coopersburg PA

International Classification:

A47H 1/00

US Classification:

160120, 1601761 P

Abstract:

A motorized shade control system includes electronic drive units (EDUs) having programmable control units directing a motor to move an associated shade in response to command signals directed to the control units from wall-mounted keypad controllers or from alternate devices or control systems connected to a contact closure interface (CCI). Each of the EDUs, keypad controllers and CCIs of the system is connected to a common communication bus. The system provides for initiation of soft addressing of the system components from any keypad controller, CCI or EDU. The system also provides for setting of EDU limit positions and assignment of EDUs to keypad controllers from the keypad controllers or CCIs. The system may also include infrared receivers for receiving infrared command signals from an infrared transmitter.

US Patent:

7190124, Mar 13, 2007

Filed:

May 16, 2005

Appl. No.:

11/129793

Inventors:

Stuart DeJonge - Riegelsville PA, US
David J. Dolan - Center Valley PA, US

Assignee:

Lutron Electronics Co., Inc. - Coopersburg PA

International Classification:

H05B 37/02

US Classification:

315224, 315240, 315241 R, 315242

Abstract:

A dimmer circuit provides AC power to an inductive lighting load in series with the dimmer circuit. A bidirectional semiconductor switch has a control electrode with a control signal for determining the power provided to the load. The switch in normal operation is controlled to block voltage in first and second half-cycles of the AC voltage. In a failure mode it can block the AC voltage in only one half-cycle. A controller for the switch determines the failure mode of the switch occurs which can cause an asymmetry between the half-cycles and thus a DC voltage component. A power supply supplies power to the controller from across the dimmer circuit. The controller drives the switch into substantially full conduction during most of the half-cycle which the switch is able to control; and drive the switch into non-conduction for a period of time during that same half-cycle so as to reduce the DC voltage component to prevent excessive transformer heating. The power supply is provided with sufficient voltage from the AC voltage to enable the controller to continue to operate.

US Patent:

7281565, Oct 16, 2007

Filed:

Feb 9, 2004

Appl. No.:

10/774919

Inventors:

David J. Dolan - Center Valley PA, US
Mark A. Walker - Whitehall PA, US

Assignee:

Lutron Electronics Co., Inc. - Coopersburg PA

International Classification:

A47G 5/02

US Classification:

160310, 160188, 318268

Abstract:

A system for controlling a roller shade having a roller tube windingly receiving a shade fabric varies roller tube rotational speed for constant linear shade speed. The desired linear shade speed, roller tube diameter and shade fabric thickness and length are stored in a memory for use by a microprocessor. Preferably, the roller tube rotational speed is varied by the microprocessor depending on shade position determined by signals from Hall effect sensors. The microprocessor maintains a counter number that is increased or decreased depending on direction of rotation. Based on the counter number, the microprocessor determines shade position and a corrected rotational speed for the desired linear shade speed. Preferably, the microprocessor controls roller tube rotational speed using a pulse width modulated signal. The system may be used to control first and second roller shades having roller tubes of differing diameters or shade fabrics of varying thicknesses.

US Patent:

7537040, May 26, 2009

Filed:

Aug 30, 2007

Appl. No.:

11/897325

Inventors:

David J. Dolan - Center Valley PA, US
Mark A. Walker - Whitehall PA, US

Assignee:

Lutron Electronics Co., Inc. - Coopersburg PA

International Classification:

A47G 5/02

US Classification:

160120, 160188, 160310

Abstract:

A system for controlling a roller shade having a roller tube windingly receiving a shade fabric varies roller tube rotational speed for constant linear shade speed. The desired linear shade speed, roller tube diameter and shade fabric thickness and length are stored in a memory for use by a microprocessor. Preferably, the roller tube rotational speed is varied by the microprocessor depending on shade position determined by signals from Hall effect sensors. The microprocessor maintains a counter number that is increased or decreased depending on direction of rotation. Based on the counter number, the microprocessor determines shade position and a corrected rotational speed for the desired linear shade speed. Preferably, the microprocessor controls roller tube rotational speed using a pulse width modulated signal. The system may be used to control first and second roller shades having roller tubes of differing diameters or shade fabrics of varying thicknesses.

US Patent:

7635018, Dec 22, 2009

Filed:

Aug 30, 2007

Appl. No.:

11/897326

Inventors:

David J. Dolan - Center Valley PA, US
Mark A. Walker - Whitehall PA, US

Assignee:

Lutron Electronics Co. Inc. - Coopersburg PA

International Classification:

A47G 5/02

US Classification:

160310, 160188, 318268

Abstract:

A system for controlling a roller shade having a roller tube windingly receiving a shade fabric varies roller tube rotational speed for constant linear shade speed. The desired linear shade speed, roller tube diameter and shade fabric thickness and length are stored in a memory for use by a microprocessor. Preferably, the roller tube rotational speed is varied by the microprocessor depending on shade position determined by signals from Hall effect sensors. The microprocessor maintains a counter number that is increased or decreased depending on direction of rotation. Based on the counter number, the microprocessor determines shade position and a corrected rotational speed for the desired linear shade speed. Preferably, the microprocessor controls roller tube rotational speed using a pulse width modulated signal. The system may be used to control first and second roller shades having roller tubes of differing diameters or shade fabrics of varying thicknesses.

US Patent:

7931068, Apr 26, 2011

Filed:

Sep 28, 2005

Appl. No.:

11/238529

Inventors:

Michael E. Lockley - Bethlehem PA, US
Justin J. Mierta - Emmaus PA, US
David J. Dolan - Bethlehem PA, US
Thomas W. Brenner - Wescosville PA, US

Assignee:

Lutron Electronics Co, Inc. - Coopersburg PA

International Classification:

A47H 1/00

US Classification:

160120, 318264, 318265, 318266, 318267

Abstract:

A motorized shade control system includes electronic drive units (EDUs) having programmable control units directing a motor to move an associated shade in response to command signals directed to the control units from wall-mounted keypad controllers or from alternate devices or control systems connected to a contact closure interface (CCI). Each of the EDUs, keypad controllers and CCIs of the system is connected to a common communication bus. The system provides for initiation of soft addressing of the system components from any keypad controller, CCI or EDU. The system also provides for setting of EDU limit positions and assignment of EDUs to keypad controllers from the keypad controllers or CCIs. The system may also include infrared receivers for receiving infrared command signals from an infrared transmitter.