Westinghouse Electric Corporation

North American Philips Electric Corp.

North American Philips Corporation

North American Philips Lighting Corp.

Edward W Morton

Thomas E Dooley

Robert G Young

Henry Skwirut

Daniel W O'Mullan

George S Evans

John F Gilmore

William E Wilson

William A Thornton

Edward Chen

Dorothy Rachko

By Roderick Gilmore, Administrator

John F Gilmore, Deceased

William J Lally

A three way lamp having two gas discharge light tubes mounted on the same housing having three terminals arranged thereon as provided on a three-way incandescent lamp.

Three way gas discharge lamp

A modified impedance rapid start fluorescent lamp system is provided with interrupted cathode heating. This structure includes a circuit in parallel with one of the bimetal switches at each side of a cathode. The circuit includes a current limiting capacitor and bleeder resistor connected in parallel with each other and a third normally closed thermal bimetal switch.

Modified impedance rapid start fluorescent lamp system

A three way lamp having two gas discharge light tubes mounted on the same housing in a light-transmitting bulb.

An energy-saving instant-start series-sequence fluorescent lamp system includes power-reducing capacitor means connected in series circuit arrangement with one or both lamps in a two-lamp system. A protective device is connected in circuit with a first lamp of the system so that in the event the second lamp fails to operate and causes a high current to flow through the first lamp, the protective device reacts to prevent the system from being damaged. A lamp incorporating the power-reducing capacitor and protective device is also disclosed.

Energy conserving instant-start series-sequence fluorescent lamp system

Compact fluorescent lamp unit

Compact fluorescent lamp

The convoluted fluorescent lamp component of a compact lamp unit is mechanically and electrically coupled to a base module by a plate-like mounting member which is secured to the module in suspended fashion and has socket means which permit the lamp component and associated energizing-circuit components to be plugged into and removed from the module. The mounting member is structured and oriented to also provide a peripheral air passageway which, in conjunction with vent openings in the module and in a protective cover which is secured to the module, allows air to flow freely through the operating unit and convection-cool the fluorescent lamp. The lamp unit can accordingly be operated at high power loadings without overheating and can also be easily relamped and provided with new circuit components (such as a ballast and/or a starter) to prolong its useful life.

Compact lamp unit having plug-in fluorescent lamp and module components

A compact fluorescent lamp unit for use with a three-way incandescent-type lamp fixture. The compact fluorescent lamp unit includes a compact fluorescent discharge device of predetermined configuration, a ballast inductor and two capacitors, and housing and support means for supporting the discharge device and housing the ballast inductor. When the switch of the incandescent-type lamp fixture is switched the compact fluorescent discharge device is switched, successively, from a deenergized state; to a low-light output state; to a medium-light output state; and, finally, to a high-light output state.

Compact fluorescent lamp unit for three-way fluorescent lamp fixture

Method and apparatus for expressing as a number the relative brightness of artificial illumination as it is perceived by the average observer. There is extracted (i.e., detected) from the illumination to be measured, a blue-appearing narrow band, a green-appearing narrow band, a yellow-appearing narrow band and a red-orange-appearing narrow band. From these extracted bands are generated six different signals: a signal expressed as (aB) where (a) is about 0.23 and (B) is the watts of energy in the blue band, a signal expressed as (bG) where (b) is about 0.97 and (G) is the watts of energy in the green band, a signal expressed as (cR) where (c) is about 0.33 and (R) is the watts of energy in the red-orange band, a signal expressed as (dY) where (d) is about 0.19 and (Y) is the watts of energy in the yellow band, a signal expressed as (eG) where (e) is about 0.25 and (G) is the watts of energy in the green band, and a signal expressed as (fR) where (f) is about 0.25 and (R) is the watts of energy in the red-orange band. These signals are combined in the following manner: aB+bG+cR-dY+(the larger of eG and fR minus the smaller of eG and fR). These combined signals are expressed as a number which is indicative of the relative brightness of artificial illumination as perceived by the average observer.

Method and apparatus for expressing relative brightness of artificial

A fluorescent lamp conversion unit for use in combination with the residential incandescent-type lamp fixture. The fixture is of the type intended for operation with a lamp shade of predetermined dimensions. The fluorescent lamp conversion unit includes lamp and lamp shade supporting means including a rigid hollow elongated member for supporting a fluorescent lamp of the compact type having an elongated envelope which has a double-U-bend to present a compact design thereby enabling the lamp to be enclosed by the lamp shade.

Fluorescent lamp conversion unit

A fluorescent lamp having a triple-U-bent tubular envelope is combined with circuit means, a translucent protective cover and a threaded base member to provide an efficient screw-in type lamp unit of high brightness and long life that is compact enough to be used as a direct replacement for incandescent type lamps in fixtures designed for residential and commercial lighting. Various structural arrangements for including the ballast and starter components of the energizing circuit as integral parts of the compact lamp unit, despite the stringent space limitations, and also venting the cover and base structures to provide convection cooling of the compacted electrical components are also disclosed. Additional cost-saving advantages are afforded by making the triple-U-bent fluorescent lamp a plug-in type component that can be readily removed from the lamp unit and replaced with a new fluorescent lamp, thus permitting the lamp unit to be retained as a permanent part of the lighting fixture and be periodically relamped at minimal expense as required to maintain the optimum amount of illumination from the electrical energy which is consumed.

Screw-in type lighting unit having a convoluted tridimensional

A lightweight starting and operating ballasting means for starting and operating a fluorescent lamp means from a household source of AC energy. The ballasting means has elements which perform with the lamp means in a starting mode and an operating mode. In the operating mode with a low-pressure mercury discharge existing between the lamp electrodes, the lamp means is ballasted solely by a series-connected resistor means and capacitor means.

Growing community of inventors

Teaneck, NJ, United States of America

Edward W Morton