STEPHEN J YUHASZ
Engineers in Zionsville, PA

4689547, Aug 25, 1987

Apr 29, 1986

6/857739

Michael J. Rowen - Philadelphia PA
Stephen J. Yuhasz - Zionsville PA
David L. Buehler - Lafayette Hill PA
Elliot G. Jacoby - Glenside PA
Joel S. Spira - Coopersburg PA

Lutron Electronics Co., Inc. - Coopersburg PA

G05F 1455

323239

A multiple location system is provided for controlling application of alternating-current power to a load. The system employs a triac as a power carrying device, the gate control circuit for which has been modified to include auxiliary switching. Potentiometers are disposed at various different locations for determining, responsively to the setting or positioning of an actuator, such as the slide control of a linear potentiometer, the magnitude of respective control signals substantially immediately upon setting of the actuator. The signals are mutually exclusively applied to control the triac in accordance with which of the actuators is being set. Alternatively, the control signals can be applied in accordance with which one of a series of take-command switches (one for each location) was last operated. In either case, only two wires are necessary to connect the different locations to one another. In one embodiment, the actuator controls a pair of momentary-close switches associated therewith (e. g.

4563592, Jan 7, 1986

Oct 13, 1983

6/541368

Stephen J. Yuhasz - Zionsville PA
David G. Luchaco - Macungie PA

Lutron Electronics Co. Inc. - Coopersburg PA

H01H 4700

307115

A dimmer switch and dimmer system is described in which dimming for the entire system is controlled from a single device while on/off switching is controlled by individual devices at multiple locations. The main dimming device contains an alternate action switching circuit for opening and closing the gate circuit of a controllably conductive device. Each of the remote location switching devices consists of respective low voltage switches, each operable to operate the alternate action switching circuit in the main dimmer device and are connected thereto by wiring which carries only signal level voltages and currents. Each remote switch may be a wall-mounted switch containing a single, relatively large area push button which momentarily closes a short movement, low activation force pair of contacts when the large area push button is depressed by pressure applied to any portion over its surface.

4803380, Feb 7, 1989

Jun 20, 1986

6/877229

Elliot G. Jacoby - Glenside PA
Michael J. D'Aleo - Ottsville PA
David G. Luchaco - Macungie PA
Joel S. Spira - Coopersburg PA
Richard A. Wagner - Allentown PA
Stephen J. Yuhasz - Zionsville PA
David H. Dowler - Raymond ME

Lutron Electronics Co., Inc. - Coopersburg PA

H01H 4700, H01C 1000

307157

A cover and support plate arrangement for a wall mounted device, such as a wall switch, display, dimmer, etc. , for mounting to a wall box embedded in the wall and having overall surface dimensions greater than that of the wall box. The cover plate is juxtaposed over the front surface of the support plate and is spaced therefrom to provide an air gap between the cover plate and the support plate creating a chimney through which air currents may flow. The device includes an electric circuit having a heat generating device, such as a triac, which is thermally connected to the support plate and in series electrically with a controlled load. The cover plate casts a shadow along vertical sides of the support plate such that the vertical sides of the support plate are visible only when viewed at extreme angles with respect to an imaginary line perpendicular to the plane of the support plate or the wall in which the device is mounted. The cover plate appears to float from the wall while proper thermal dissipation is achieved through the chimney between the cover and support plate. Means are disclosed for constructing a low profile, conventionally sized family of wall mounted dimmer switches that meet Underwriters Laboratories operating temperature standards.

5146153, Sep 8, 1992

Nov 1, 1989

7/430922

David G. Luchaco - Macungie PA
Stephen J. Yuhasz - Zionsville PA
David Buehler - Bethlehem PA
Raphael K. T. Tang - Belmont MA
Joel S. Spira - Coopersburg PA

G05F 302

323324

A remote wireless load control system wherein the power supplied to a load can be varied from a remote location using a remote control device not electrically wired to the load. The load control system includes a transmitter and a receiver, each having a control actuator for adjusting the power supplied to the load. Control can be conferred upon either the transmitter or the receiver immediately upon manipulation of the control switch, with the adjustment in power level occurring substantially instantaneously upon manipulation of the control actuator. Transmission of load level information between transmitter and receiver is by digitally pulse-coded infrared signal.

4745351, May 17, 1988

Apr 22, 1987

7/041149

Michael J. Rowen - Emmaus PA
John E. Longenderfer - Orefield PA
Stephen J. Yuhasz - Zionsville PA

Lutron Electronics Co., Inc. - Coopersburg PA

G05F 1455

323239

A multiple location system is provided for controlling application of alternating-current power to a load. The system employs a dimming system in combination with one or more switches. In one embodiment, the system includes an override, so that a switch can provide power to the load even after the dimmer has turned the power off. In another embodiment, the dimming system includes an actuator, and the value of power to the load is determined substantially immediately upon setting of the actuator.

4825075, Apr 25, 1989

Jul 30, 1987

7/079848

Elliot Jacoby - Glenside PA
Stephen J. Yuhasz - Zionsville PA
Noel Mayo - Philadelphia PA

Lutron Electronics Co., Inc. - Coopersburg PA

G02F 101

250342

A receiver for a radiated electromagnetic signal includes elements that respectively transmit a high percentage and a low percentage of the incident signal, in combination with a detector. The device is adapted for mounting on or near a horizontal surface, such as a ceiling. The signal is preferably in the infrared region of the spectrum. The receiver provides non-electronic gain control and, when the high-transmission element passes the signal wavelength preferentially over other wavelengths, it also provides improved noise immunity.

5017837, May 21, 1991

Dec 12, 1989

7/453093

R. Scott Hanna - Bethlehem PA
Woodie Flowers - Weston MA
David G. Luchaco - Macungie PA
Stephen J. Yuhasz - Zionsville PA
Joel S. Spira - Coopersburg PA
Philip R. Hall - Ottsville PA

Lutron Electronics Co., Inc. - Coopersburg PA

H01J 7042, G05B 2302

315136

An indicator lamp indicates the status of an electrically-powered load control system by providing dim light when the load power is off and a brighter light when the load power is on. In another embodiment, the lamp not only provides two levels of light to indicate whether or not power is on, but also provides a repetitive flash when power to the system is being controlled by remote control. The indicator lamp can also indicate a break in the load circuit. Depending on the embodiment, the break can cause the lamp to be either off or flashing, regardless of the position of the load power switch. Alternatively, a break in the load circuit can cause the lamp to provide substantially no light if the load power switch is in the "off" position, with full light in the "on" position.

5005211, Apr 2, 1991

Sep 25, 1989

7/412572

Stephen J. Yuhasz - Zionsville PA

Lutron Electronics Co., Inc. - Coopersburg PA

H04B 1010

455603

A multiple-input power control system accepts control signals from a radiant signal transmitter and from a local control, selects one of the signals, and provides the selected signal to a power controller to control the power to a load. At least one of the control signal sources has an actuator which is movable through a range of positions, to determine the control signal provided by that source. The system finds particular utility in controlling lighting loads.

4737609, Apr 12, 1988

Sep 6, 1985

6/773776

Stephen J. Yuhasz - Zionsville PA
David G. Luchaco - Macungie PA
Julian J. Raphael - East Stroudsburg PA
Ronald P. Frazer - East Greenville PA

Lutron Electronics Co., Inc. - Coopersburg PA

H01H 320

200330

An improved push button switch has a highly desirable tactile feel. The switch includes a face plate having a front surface, a rear surface and an opening extending from the front to the rear surface, the opening having a geometric center as viewed from a position in front of the face plate. A push button is located in the opening. A pair of leaf springs are provided for coupling the push button to the face plate with at least a portion of the push button being biased against the rear surface of the face plate. A normally open electro-mechanical switch having a stationary contact and a movable contact is provided. The movable contact is biased against a portion of the rear surface of the push button at a location corresponding to the geometric center of the opening in the face plate. The push button, the face plate, the leaf springs and the mechanical switch cooperate to ensure that whenever the operator of the push button switch depresses the push button at a first location which is removed from the geometric center of the opening, the push button will contact the stationary surface at a second location which is on the opposite side of the center of the opening relative to the first location, and thus provide a force to the moveable contact to close the push button switch.

4833339, May 23, 1989

Oct 25, 1985

6/791318

David G. Luchaco - Macungie PA
Stephen J. Yuhasz - Zionsville PA
Ian R. Hurst - Allentown PA
Joel S. Spira - Coopersburg PA

Lutron Electronics Co., Inc. - Coopersburg PA

H01H 4700

307115

A load control switching system includes a switching element adapted to be coupled between a power source and a load. The switch element is operable in an ON state wherein it supplies power from the source to the load and an OFF state wherein it cuts off power from the source to the load. A control circuit controls operation of the switching element in response to the actuation of one or more short-throw, light-force switches which are each movable between a normally open and a momentarily closed position. The control circuit alternates the state of the switching element each time the short-throw, light-force switch is momentarily closed.