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Class 315/73 - Electric switch inside evacuated or gas filled envelope


Subclass of Class 315 - Electric lamp and discharge devices: systems
Definition: Subject matter wherein the load device is provided with
No. of patents: 168
Last issue date: 03/11/2008


1          
NumberTitleIssue Date
7342327Series connected light string with filament shunting
A string set of series-connected incandescent bulbs in which substantially all of the bulb filaments in the set are individually provided with a shunt circuit which includes a voltage responsive switch which is inoperative during normal operation of the string set w...
03/11/2008
7245083Incandescent lamp with integral controlling means
An incandescent lamp has incorporated a circuit board within a recess in the bulb, wherein the circuit board contains connections and circuitry to control power to the lamp filament while maintaining the attachment of the bulb to the metal base, wherein the complete...
07/17/2007
7153178Method of manufacturing a lamp assembly
A lamp assembly configured to inductively receive power from a primary coil. The lamp assembly includes a lamp circuit including a secondary and a lamp connected in series. In a first aspect, the lamp circuit includes a capacitor connected in series with the lamp an...
12/26/2006
7132800High-pressure discharge lamp
A high-pressure discharge lamp has a discharge vessel that is enclosed, with an interspace, by an outer bulb. The end of the outer bulb is provided with a lamp cap. The lamp has an ignition circuit including a series connection of a glow starter and an ohmic impedan...
11/07/2006
7112923Lamp assembly with a retainer connecting a stem to a lamp capsule
A stem and lamp capsule are connected together as an assembly using a retainer such that the stem is clamped to one end of the retainer and the capsule is clamped to the other end of the retainer. An oxidizable fuse is connected between leads of the capsule and elec...
09/26/2006
7067981Compact fluorescent lamp, self-ballasted fluorescent lamp and luminaire
A compact self-ballasted fluorescent lamp which is equivalent to a typical light bulb is provided. The self-ballasted fluorescent lamp includes a cover, a lighting circuit, an arc tube, a base and a globe and formed into a shape whose outline dimensions are nearly i...
06/27/2006
7042158Compact fluorescent lamp, self-ballasted fluorescent lamp and luminaire
A compact self-ballasted fluorescent lamp which is equivalent to a typical light bulb is provided. The self-ballasted fluorescent lamp includes a cover, a lighting circuit, an arc tube-a base and a globe and formed into a shape whose outline dimensions are nearly id...
05/09/2006
7038383Ignition aid for high intensity discharge lamp
An arc tube for a high intensity discharge lamp comprising a translucent body defining a discharge space and including spaced-apart electrodes; an arc generating and sustaining medium within the discharge space; and a starting aid contained within the discharge spac...
05/02/2006
7005800Lamp with anti-explosion device
An incandescent electric lamp includes a bulb, current-conductor wires, a filament having turns arranged in spiraling fashion around an axis of revolution, one end of the filament being connected to a conductor wire, a metal support connected to the other conductor ...
02/28/2006
6992442Restricted getter
A getter is a porous sintered metallic alloy used to absorb non-inert gases. The getter is placed in a getter well of a ring laser gyroscope system or other gas discharge system. The getter well is any enclosure in which a getter resides. The getter absorbs oxygen, ...
01/31/2006
6943498High intensity discharge lamp and high intensity discharge lamp system using the same
To provide a high-efficiency and long-life high intensity discharge lamp that is obtained by a configuration in which a neon gas or a neon-based gaseous mixture is filled as a starting-assistance rare gas for an alumina ceramic arc tube, and a filling pressure is se...
09/13/2005
6919686Discharge lamp having an auxiliary light source to produce light with a short wavelength
The discharge lamp of the invention includes a main discharge vessel which is filled with a discharge medium for the main discharge via a pair of opposed main discharge electrodes, and has a first electrode sealing part and a second electrode sealing part for connec...
07/19/2005
6917163Inductively powered lamp assembly
A lamp assembly configured to inductively receive power from a primary coil. The inductively powered lamp assembly includes a lamp circuit including a secondary and a lamp connected in series. In a first aspect, the lamp circuit includes a capacitor connected in ser...
07/12/2005
6774563Support for a lamp capsule and end-of-life device, lamp including such capsule, and method of coupling lamp capsule and end-of-life device to such support
A support device is provided for use with an electric lamp having a sealed outer envelope that encloses an environment, and a lamp capsule and end-of-life device positioned within such environment. The support device serves to support the lamp capsule and the end-of...
08/10/2004
6737803Safety switch for an electric lamp having an inner bulb and an outer bulb
An electric lamp (1) comprising a gastight lamp vessel (2) for the transformation of electrical energy into light, which lamp vessel has two current conductors (3,6; 4,7) which extend to the outside. The lamp further comprises an outer envelope ...
05/18/2004
6731071Inductively powered lamp assembly
A lamp assembly configured to inductively receive power from a primary coil. The lamp assembly includes a lamp circuit including a secondary and a lamp connected in series. In a first aspect, the lamp circuit includes a capacitor connected in series with the lamp an...
05/04/2004
6720718Thin walled lamp with tungsten halogen capsule and pyrophoric fuse
An efficient and safe lamp with a tungsten halogen capsule may be formed by using a two stage pyrophoric fuse as part of the electrical path to the capsule. The thin walled lamp with tungsten halogen capsule and two stage pyrophoric fuse yields a more efficient, les...
04/13/2004
6570327Lamp with safety switch
The invention relates to an electric lamp (100) whose light source reaches a very high temperature during operation. It mainly relates to a lamp provided with a double envelope such that a fracture or a crack of the outer envelope (2) does not prevent the...
05/27/2003
6563268High-intensity discharge lamp
A high-intensity discharge lamp includes an arc tube having a pair of main electrodes, a starting circuit having a thermally-actuated switch for disconnecting the starting circuit, and an outer tube for containing the arc tube and the starting circuit, an...
05/13/2003
6504305Fluorescent lamp
A fluorescent lamp is capable of easily achieving a reduction of power consumption only be being mounted on a conventional lighting apparatus, whether or not the lighting apparatus has a dimming function. The fluorescent lamp includes an arc tube; and a c...
01/07/2003
6462478Safety switch for lamp including a light source capsule
A safety switch for a lamp having an outer envelope with a light source capsule mounted therein. The lamp has a base for connection to an electrical circuit via a mating socket and has in-leads appropriately connected to the base and to the light source c...
10/08/2002
6462477High pressure discharge lamp
A high pressure discharge lamp is provided with an arc tube and a starter. The starter includes a ferroelectric ceramic capacitor element with non-linear characteristics an a semiconductor switching element, connected in parallel to the arc tube. A pulse ...
10/08/2002
6404128Glow discharge starter
In a glow discharge starter, a layer of lanthanum is present on one of the conductors and the gas filling is a Penning mixture. The glow discharge starter does not contain radioactive material. The delay time between the application of a voltage between t...
06/11/2002
6400087Unit comprising a high-pressure discharge lamp and an ignition antenna
A short-arc discharge lamp (1) is provided with a light-transmitting, gastight lamp vessel (10), which is provided with an ionizable filling. A first electrode and a second electrode (11a, 11b), respectively, are arranged in the lamp vessel (10) and are e...
06/04/2002
6316878Electric-light bulb
The electric-light bulb is capable of limiting an inrush current and automatically periodically changing brightness. In the electric-light bulb, a filament is provided in a bulb body. A resistance is provided in the bulb body and connected to the filament...
11/13/2001
6037854Thermal fuse for fluorescent lamps
A fluorescent lamp thermal fuse arrangement is disclosed. The arrangement in a preferred embodiment comprises a fluorescent glass tube lamp, a thermal fuse wrapped externally around an end of the lamp, electrically insulated mechanical means, lead portion...
03/14/2000
6034477High-pressure discharge lamp
A high-pressure discharge lamp provided with an outer bulb enclosing a discharge tube accommodates a transformer having primary winding which forms part of a current conductor to one of the main electrodes of the discharge tube. The secondary winding is c...
03/07/2000
5757137High pressure sodium lamp with bimetallic starting aid and ignition wire
A starting aid for high pressure sodium vapor lamps eliminates the need to mechanically connect an ignition wire to the lamp frame. The starting aid employs an ignition wire which is slidably clipped directly to the arc tube at one end and which is connec...
05/26/1998
5606222Lighting system with a device for reducing system wattage
A lighting system having a gas discharge lamp and a stabilization ballast further includes a low loss device to reduce the current through the ballast and lamp, thereby reducing system wattage for energy savings. For a lead-type ballast, the current reduc...
02/25/1997
5565736Discharge lamp provided with a bimetal switch, and bimetal switch suitable for a lamp
A high-pressure discharge lamp includes a discharge vessel which is enclosed with intervening space by an outer bulb. The lamp is provided with a starter circuit constructed as a starter unit comprising a bimetal switch and glow switch starter. The bimeta...
10/15/1996
5545952Self grounding lamp for special use in an underwater environment
An incandescent bulb for use in a submerged swimming pool light fixture is disclosed, which includes a filament, at least one spring-biased filament support, and a grounding device. The filament support includes an exposed current-conducting portion and i...
08/13/1996
5512799Glowbottle starting device for gaseous discharge devices
A glowbottle starter switch for igniting gaseous discharge lamps in alternating current circuits. The glowbottle including a hermetically sealed glass envelope (7) containing a fill of an ionizable gas and having at least two lead wires (2,3) disposed the...
04/30/1996
5504395Lamp bulb having integrated RFI suppression and method of restricting RFI to selected level
An incandescent lamp bulb which is driven by an electronic control module (ECM) and method of manufacture characterized in that an inductor comprising a magnetic element and a winding thereon is disposed within a screw shell base of the lamp bulb and surr...
04/02/1996
5449971Method, composition, and means for limiting lead wire arcing in an arc discharge lamp
A material is provided on the lead wires that support a filament of a fluorescent lamp assembly to inhibit arcing associated with filament burnout. The material comprises a glass that is non-alkaline. Another preferred arrangement is to incorporate a mate...
09/12/1995
5420479High pressure vapor discharge lamp with a built-in igniter
A built-in igniter type high pressure sodium lamp includes an igniter connected in parallel with an arc tube 1 for a high pressure sodium lamp and composed of a series circuit of a thermally-activated bimetal switch 2 and a nonlinear capacitor 3. The high...
05/30/1995
5400223Sports lighting luminaire having a broken glass safety shutdown circuit
A sports lighting fixture having a broken glass detection arrangement includes a high intensity light source disposed near the closed end of a reflector member. A cover member made of a light transmissive material is disposed at the open end of the reflec...
03/21/1995
5389856High-pressure discharge lamp with an integral fuse-capacitor component
The invention relates to a high-pressure discharge lamp (2) provided with a discharge vessel (3) and an outer envelope (30) which encloses a space (6). The lamp is provided with an igniter circuit (10) which comprises a voltage-dependent capacitor (8) and...
02/14/1995
5355053High pressure sodium lamp starting aid
A starting aid for high pressure sodium vapor lamps eliminates the need to mechanically connect an ignition wire to the lamp frame. The starting aid employs an ignition wire which is slidably clipped directly to the arc tube at one end and which is connec...
10/11/1994
5336974High-pressure discharge lamp
The invention relates to a high-pressure discharge lamp including a discharge vessel and an outer envelope which encloses a space. The lamp has an igniter circuit which has a voltage-dependent capacitor and a resistor which are integrated so as to form a ...
08/09/1994
5331250Thick film resistor for use in a vacuum and a high pressure discharge lamp having such a resistor
A high pressure discharge lamp having a thick film resistor comprising a plurality of resistive elements. A first resistive element is included in a starting circuit for the lamp and a second resistive element is in series with the arc tube during lamp op...
07/19/1994
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