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North American Philips Electric Corp. Patents
Assignee:
North American Philips Electric Corp.
Address:
New York, NY
No. of patents:
20
Patents:




Patent Number Title Of Patent Date Issued
D286915 Air-cooled compact electric lamp November 25, 1986
D286914 Air-cooled compact electric lamp November 25, 1986
D278462 Air-cooled compact electric lamp April 16, 1985
D277412 Compact electric discharge lamp January 29, 1985
D277033 Air-cooled compact electric lamp January 1, 1985
D275327 Compact fluorescent lamp unit August 28, 1984
D274560 Compact fluorescent lamp unit July 3, 1984
D272653 Compact fluorescent lamp February 14, 1984
D271424 Compact fluorescent lamp unit November 15, 1983
D270480 Compact fluorescent lamp or similar article for a lighting unit September 6, 1983
4498580 Lamp bulb carton, and resulting lamp bulb package February 12, 1985
An electric lamp bulb (or similar fragile article) is retained in suspended centralized position within a collapsible open-ended carton of rectangular sleeve-like configuration by a dual-panel liner that extends across the interior of the carton and has apertured medial parts which nesti
4438369 Unitary light source comprising compact HID lamp and incandescent ballast filament March 20, 1984
Unitary light source comprises compact HID lamp and starting and operating circuit therefor operable from household AC energizing potential. The HID lamp is ballasted by incandescent filament means which also provides the major portion of developed light during HID warm up and after powe
4437039 Starting arrangement for high-intensity-discharge sodium lamp March 13, 1984
High-intensity-discharge (HID) sodium lamp has a starting aid comprising a conducting ceramic which is hermetically sealed to and extends through an alumina arc tube at least at one end thereof to form an electrically conducting path. The conducting ceramic is fused to the alumina arc tu
4435670 Energy conserving instant-start series-sequence fluorescent lamp system with overcurrent protect March 6, 1984
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 t
4435669 Arc tube construction March 6, 1984
An arc tube for a high-pressure sodium (HPS) discharge lamp having an extended seal path to reduce leakage therethrough. The extended seal path is provided by a monolithic arc tube body having circular apertures in the ends thereof of a substantially smaller diameter than the diameter of
4435284 Recovery of mercury from scrap glass March 6, 1984
A process for removing residual mercury from scrap fluorescent lamp exhaust tubulation or similar scrap glass is disclosed. A very small predetermined amount of finely divided silica or alumina powder is added to the mercury contaminated scrap glass and the mixture is agitated for a very
4431942 Color-corrected hid mercury-vapor lamp having good color rendering and a desirable emission colo February 14, 1984
Color-corrected HID mercury-vapor lamp provides good color rendition of illuminated objects and also has a commercially desirable emission color. The lamp incorporates the usual arc tube which emits both ultraviolet radiations and visible radiations and the color-correcting phosphor
4414489 Compact electric discharge lamp-and-ballast unit, and plug-in ballast module therefor November 8, 1983
A single-ended compact fluorescent lamp having an envelope that is partitioned or of multi-U-bent shape and defines a tortuous arc path is combined with a plug-in ballast module which is elongated in a lateral direction but has a low profile and a narrow width. The resulting decrease
4396595 Method of enhancing the optical transmissivity of polycrystalline alumina bodies, and article pr August 2, 1983
The in-line transmission of a translucent polycrystalline alumina arc tube for a high-pressure sodium discharge lamp is improved by as much as 50% by dipping the "green" tubular compact in an aqueous slurry containing finely-divided alumina particles and, after the slurry-dipped compact
4393330 Method for effectively contacting manganese-activated zinc silicate phosphor with antimony oxide July 12, 1983
For fluorescent lamps which use a double layer of phosphor with manganese-activated zinc silicate phosphor in the overlying layer, a small predetermined amount of finely-divided antimony oxide is added to the first phosphor layer coating paint which, after application, is lehred at a

 
 
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