|Publication number||USRE41628 E1|
|Application number||US 11/600,966|
|Publication date||Sep 7, 2010|
|Filing date||Nov 16, 2006|
|Priority date||Jun 20, 2001|
|Also published as||CA2505668A1, CA2505668C, EP1716618A1, US6819080, US20030146735, WO2005048393A1|
|Publication number||11600966, 600966, US RE41628 E1, US RE41628E1, US-E1-RE41628, USRE41628 E1, USRE41628E1|
|Inventors||Stefane E. Barbeau, Duane B. Smith, Donald E. Drumm|
|Original Assignee||Helen Of Troy Limited|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (111), Referenced by (8), Classifications (25), Legal Events (2)|
|External Links: USPTO, USPTO Assignment, Espacenet|
The present invention is a continuation-in-part of allowed U.S. utility patent application Ser. No. 09/885,848 filed Jun. 20, 2001 of the same inventive entity as herein, now U.S. Pat. No. 6,479,965, incorporated herein by reference.
The present invention is drawn to the field of illumination, and more particularly, to a novel rechargeable lamp system.
Candles may be moved and placed to provide illumination and/or ambience. While their utilitarian and aesthetic advantages are well-known, candles suffer from an undesirable self-consumption, needing to be replaced when used-up; produce smoke especially when snuffed, which may foul the air; require vigilant attendance to mitigate an ever-present fire hazard; are susceptible to being extinguished by gusts of air when used outdoors or moved around; and may give rise to undesirable wax build-up, which in many instances needs removed from candle support members or underlying structures.
There is thus a need to provide a rechargeable lamp system that enjoys the many utilitarian and aesthetic advantages of candles but is not subject to their disadvantages.
It is accordingly a general object of the present invention to disclose a rechargeable lamp system that provides candle-like lighting for indoor or outdoor use that avoids the problems associated with candles.
In accordance therewith, the autoilluminating rechargeable lamp system of the present invention includes a recharging platter adapted to receive a set of luminaries including a first circuit coupled to each luminary of said set of luminaries received thereon operative in response to supplied AC power to provide a charge signal to each luminary of said set of luminaries received thereon; and a set of luminaries each having a light emitting element connected to a rechargeable battery pack via a second circuit operative in one mode to charge said rechargeable battery pack in response to said charge signal when each luminary of said set of luminaries is received on said recharging platter and operative in another mode to activate said light emitting element in response to the absence of said signal, whereby, each said luminary lights if removed from said recharging platter and lights if no AC power is supplied to said recharging platter when received therein.
In the presently preferred embodiments, the set of luminaries includes one or more luminaries each of which is inductively coupled to the first circuit of the recharging platter. The inductive coupling provides automatic, hands-free recharging of the rechargeable battery pack of a luminary upon its receipt by the recharging platter, and provides automatic, hands-free actuation of a luminary when it is removed therefrom.
In the presently preferred embodiments, each luminary of the set of luminaries is self-standing and includes a diffusor that may be shaped to resemble a candle releasably mounted to a base member supporting said light emitting element therewithin.
In further accordance therewith, the autoilluminating rechargeable lamp system of the present invention includes a wall mountable charging base adapted to support a set of luminaries including a first circuit coupled to each luminary of said set of luminaries supported thereon operative in response to supplied AC power to provide a charge signal to each luminary of said set of luminaries supported thereon; and a set of luminaries each having a light emitting element connected to a rechargeable battery pack via a second circuit operative in one mode to charge said rechargeable battery pack in response to said charge signal when each luminary of said set of luminaries is supported thereon and operative in another mode to activate said light emitting element in response to the absence of said signal, whereby, each said luminary lights if removed from said wall mountable charging base and lights if no AC power is supplied to said wall mountable charging base when supported thereon.
In the presently preferred embodiments, the wall mountable charging base may be plugged directly into an AC wall outlet and/or mounted adjacent an AC wall outlet by any suitable mounting hardware.
In further accordance therewith, the autoilluminating rechargeable lamp system of the present invention includes a charging base adapted to support a set of luminaries including a first circuit coupled to each luminary of said set of luminaries supported thereon operative in response to supplied AC power to provide a charge signal to each luminary of said set of luminaries supported thereon; a sensor to provide a seat signal representative that each luminary of said set of luminaries is supported on said charging base; and a set of luminaries each having a light emitting element connected to a rechargeable battery pack via a second circuit operative in one mode to charge said rechargeable battery pack in response to said charge signal when each luminary of said set of luminaries is supported thereon and operative in another mode to activate said light emitting element in response to the absence of said seat signal, whereby, each said luminary lights if removed from said charging base and does not light if no AC power is supplied to said charging base when supported thereon.
In the presently preferred embodiments, the charging base maybe provided with a removable cover that protects the luminaries during charging, storage, and a handle that aids in transit.
These and other objects, advantageous features and inventive aspects of the present invention will be more fully appreciated as the same becomes better understood from the following detailed description of the preferred embodiments when considered in connection with the accompanying drawings, in which:
Referring now to
As shown in
A power cord 24 having an inline power switch 26 and a “wall-block” style transformer provides power to charging stand 12 via ordinary 120-volt household current. In alternate embodiments, the transformer may be dispensed with.
As will be described in greater detail herein, each of modules 110, 111, 112 and 114 is battery-powered and designed to be charged by magnetic induction when placed in a respective one of slots 16, 18, 20 and 22. Modules 110, 111, 112 and 114 are each designed to illuminate when removed from slots 16, 18, 20 and 22, or when AC power is cut off to charging stand 12.
The number of lamp modules (and a corresponding slot for each module) shown in the preferred embodiment is intended to be merely exemplary. It should be understood that the lamp system 10 of the present invention maybe constructed with any number of modules.
Referring now to
As shown in
Modules 110, 111 and 112 are identical to module 114. Thus, it will only be necessary to describe module 114 in detail.
As shown in
Diffuser 116 in the exemplary embodiment is formed of blow-molded plastic (or glass) having a frosted outer surface 142. It could also be injection-molded plastic with a frosted, translucent finish. In the exemplary embodiment, diffuser 116 is slender and elongated in shape and includes a mid-section 146 that tapers upwardly to a tip 144 and tapers slightly to a tail 148. This shape is chosen to provide optimal light color and transmission, as well as even diffusion of light from bulb 118. Obviously, numerous alternative shapes for diffuser 116 are possible. However, the internal volume created by diffuser 116 must be sufficient to envelop bulb 118, battery pack 120 and circuit board 122. In addition, because of the heat generated by bulb 118, it is desirable to provide air space between bulb 118 and diffuser 116 to prevent diffuser 118 from melting or deforming.
Base 126 comprises a lower portion 128 that provides stable support for module 114 when placed on a level surface or within slot 16. Nick 130 is adapted to removably receive diffuser 116 (to enable access to bulb 118 and battery pack 120). Neck 130 includes tabs 134, 136, 138 and 140 and a lip 135 that cooperate to secure tail 148 of module 114 to neck 130 (see
Battery pack 120 in the exemplary embodiment comprises three “AA” Nickel-Cadmium (Ni-Cad) cells wrapped in PVC shrink-wrap and having a total output of 3.6 Vdc and 500-800 mA. Of course, other types and sizes of rechargeable cells, such as Nickel-Metal-Hydride or Lithium cells, could be substituted for the Ni-Cad cells. Such cells would provide more power, and charge more quickly than Ni-Cads, but are substantially more expensive.
The power requirements for bulb 118 are, of course, chosen to match the power output of battery pack 120. In the exemplary embodiment, bulb 118 is a conventional miniature incandescent bulb, such as Chicago Miniature Lamp, Inc. part #CM1738, having an output of 1 candela and having design power requirements of 2.80V and 60 mA and an expected life of 6,000 hours. Of course, other lamps and types of light sources, such as a light-emitting diode (L.E.D.) may be substituted for bulb 118. The incandescent bulb shown is preferred because of its balance of cost, heat generation, power consumption, expected service life and brightness characteristics.
As shown in
A charging circuit 150 regulates the voltage and current flowing to battery pack 120 from secondary induction coil 124 to prevent damage to battery pack 120. A latch circuit 154 cuts off current to bulb 118 when the voltage output of battery pack 120 drops below 3.1 volts, thus preventing damage to battery pack 120 which could be caused by fully draining battery pack 120. A charge-sensing switch 156 works in cooperation with latch circuit 154 to turn off current to bulb 118 when current is detected in charging circuit 150. A constant current source circuit 152 provides a constant flow of current (65 mA in the exemplary embodiment) to bulb 118. This enables bulb 118 to shine at a constant brightness despite fluctuations in the output current from battery pack 120. In alternate embodiments, a constant voltage source could be employed.
As described above, battery pack 120 is charged by magnetic induction. The magnetic field created by primary induction coil 54 (when current is applied) induces a current in secondary induction coil 124 when secondary induction coil 124 is concentrically located relative to primary induction coil 54. In the present invention, this occurs when module 114 is placed within slot 16 (see FIG. 1).
It is preferable to ship battery pack 120 fully charged, as this will increase the shelf life of the Ni-Cad cells. However, shipping battery pack 120 fully charged requires the inclusion of means for electrically isolating battery pack 120 from lamp 118 between the time battery pack 120 is charged and when module 114 is first used by an end consumer. Such means could comprise a Mylar tab (not shown) inserted between two electrical contacts after the initial charging which would be removed by the consumer before first use. Alternatively, such means could comprise a fusible link (not shown). The fusible link would be adapted to close current regulating circuit 152 when current is sensed in charging circuit 150 (i.e., the first time the consumer plugs in charging stand 12).
Operation of lamp system 10 is elegantly straightforward. As described above, bulb 118 is designed to illuminate when no current is sensed in charging circuit 150. Thus, bulb 118 will automatically turn on when module 114 is removed from slot 16. Charging stand 12 and module 114 can also function as a table lamp by leaving module 114 in slot 16 and switching off inline power switch 26. Module 114 also functions as an emergency light—automatically turning on during a power failure.
Referring now to
As shown, the wall mountable charging base 202 comprises projections 206 spaced laterally apart a distance larger than the width of each lamp module 204, and each lamp module 204 comprises an opening thereinthrough generally designated 208 adjacent to its top surface. The projections 206 cooperate with the openings 208 to removably support the lamp modules 204 on the wall mountable charging base 202. Projections 206 and openings 208 are each of generally cylindrical geometry, although projections and openings of another geometry or other removable supporting means may be employed without departing from the inventive concepts.
Each projection has a free end, and a diffuser 210 is removably or fixedly mounted to the free end over an LED and ambient light sensor mounted thereon not shown, that switches the LED “on” in response to a condition of ambient darkness, Each lamp module 204 has a flat base 212 and a front face diffuser 214 that extends from top to bottom and surrounds the opening 208. The flat base 212 enables to place each lamp module 204 on a shelf or table and the opening 208 allows it to be carried about or hung on a hook to provide illumination in a wide variety of situations.
A power cord 216 having an inline power switch, not shown, provides power to wall mountable charging base 202 via ordinary 120-volt household current. The base 202 may be wall mounted over or spaced in relation to the AC wall outlet by any suitable mounting means, and a recess and/or power cord wrap or other means may be employed to stow any excess cord within the wall mountable charging base 202. In alternate embodiments, the power switch may be dispensed with.
As in the embodiment described above in connection with the description of the
As in the embodiment described above in connection with the description of the
A switch, not shown, may be provided to independently turn each lamp module 204 on/off to conserve charge or to use the light as needed.
Referring now to
Referring now to
Referring now to
Referring now to
Referring now to
The present invention in its broader aspects is not limited to the described embodiments, and departures may be made therefrom without departing from the principles of the invention and without sacrificing its primary advantages. Obviously, numerous modifications may be made to the present invention. Thus, the invention may be practiced otherwise than as specifically described herein. One feature of one embodiment may be employed in another disclosed embodiment. The power cord may be made removable to base placement without cord limitations. Other modifications will be readily apparent to one of skill in the art without departing from the scope of the present invention.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US3217224 *||Dec 3, 1962||Nov 9, 1965||Sherwood George W||Flashlight battery charging equipment|
|US3277358||Sep 9, 1963||Oct 4, 1966||Thomas H Nicholl||Battery charger|
|US3373274||Oct 22, 1965||Mar 12, 1968||Skott Ind Inc||Electrical candle apparatus|
|US3418552||Jun 8, 1965||Dec 24, 1968||Gen Electric||Separable transformer battery charger|
|US3517185||Jan 15, 1968||Jun 23, 1970||Bridgeport Metal Goods Mfg Co||Rechargeable flashlight and recharging stand|
|US3576990||Sep 27, 1968||May 4, 1971||Wallace F Johnson||Lighting system|
|US3641336||Apr 5, 1971||Feb 8, 1972||Giovanni Boin||Electric lamps for emergency and/or for duty under particular environment conditions, and relative improved lamps|
|US3746877||Mar 8, 1971||Jul 17, 1973||Christensen C||Emergency light unit|
|US3781631||Feb 11, 1972||Dec 25, 1973||Heath Co||Automatic battery charger|
|US3809882||Jan 20, 1971||May 7, 1974||Unique Devices Eng & Consultin||Lighting device|
|US3840785||Sep 27, 1973||Oct 8, 1974||Gen Electric||Insulative modular mounting panels for electrical switchboards|
|US3885211||Sep 16, 1974||May 20, 1975||Statham Instrument Inc||Rechargeable battery-operated illuminating device|
|US3976986||Dec 20, 1974||Aug 24, 1976||Zabroski Stanley E||Emergency lamp and solid state switching circuit therefor|
|US4029954||Nov 10, 1975||Jun 14, 1977||Hms Associates, Inc.||Portable lamp|
|US4150302||Apr 25, 1977||Apr 17, 1979||Roche Thomas F||Emergency light battery charger circuit|
|US4177500||Sep 29, 1978||Dec 4, 1979||Thomas H. Nicholl||Power failure light and circuit therefor|
|US4214185||Oct 10, 1978||Jul 22, 1980||Breeze Alan G||Light sources|
|US4223232||May 31, 1978||Sep 16, 1980||Chloride Incorporated||Battery charging circuit for an emergency system|
|US4244011||Aug 27, 1979||Jan 6, 1981||The Gates Rubber Company||Rechargeable flashlight|
|US4374354||Jun 23, 1981||Feb 15, 1983||Teledyne Industries, Inc.||Rechargeable electric portable appliance|
|US4383212||Jul 14, 1980||May 10, 1983||Ballman Gray C||Battery charger control device with D-C disconnect and A-C interrupt|
|US4463283||Mar 26, 1982||Jul 31, 1984||Streamlight, Inc.||Rechargeable lamp assembly, mounting unit, and circuit therefor|
|US4605993||Dec 19, 1984||Aug 12, 1986||Lighting Systems, Inc.||Recharging spot/flood lantern|
|US4647831||Apr 4, 1986||Mar 3, 1987||John Zink Company||Rechargeable battery operated appliance system|
|US4716352||Dec 26, 1984||Dec 29, 1987||Black & Decker, Inc.||Charging base for a battery-powered appliance|
|US4739242||May 8, 1986||Apr 19, 1988||Solid State Chargers Research And Development Limited Partnership||Multistation modular charging system for cordless units|
|US4754376||Oct 27, 1987||Jun 28, 1988||Winslow Charles H||Automatic ice chest light|
|US4764853||Jun 9, 1987||Aug 16, 1988||Thomas Stephen E||Rechargeable battery cafe table lamp|
|US4827245||Feb 23, 1988||May 2, 1989||Falcor Group Inc.||Portable strobe light system|
|US5010454||Jul 12, 1989||Apr 23, 1991||Hopper Steven R||Portable light assembly for an automobile|
|US5039929||May 16, 1989||Aug 13, 1991||Aglo S.A.||Automatic charger capable of charging several batteries|
|US5055986||Oct 22, 1990||Oct 8, 1991||Johnson Mary B||Combination light, radio and clock|
|US5124532||Jul 9, 1990||Jun 23, 1992||Hafey Marilyn J||Organizer for cordless electrically energized hair salon utensils|
|US5233271||Nov 29, 1991||Aug 3, 1993||Lung-Hsiang Huang||Starting device and lamp base construction for a Philips lamp|
|US5365145||Aug 9, 1993||Nov 15, 1994||Gael, Inc.||Emergency lighting system|
|US5392162||Oct 31, 1991||Feb 21, 1995||Glucksman; Dov Z.||Illuminated travel make-up mirror|
|US5399089||Aug 11, 1993||Mar 21, 1995||Teledyne Industries, Inc.||Oral hygiene appliance|
|US5426347||Mar 31, 1994||Jun 20, 1995||Nilssen; Ole K.||Lighting system with emergency standby feature|
|US5471129||Apr 2, 1993||Nov 28, 1995||Ivoclar Ag||Rechargeable light curing apparatus|
|US5473517||Jan 23, 1995||Dec 5, 1995||Blackman; Stephen E.||Emergency safety light|
|US5535108||Mar 3, 1995||Jul 9, 1996||Logsdon; Dana K.||Fleet light|
|US5550452||Jul 22, 1994||Aug 27, 1996||Nintendo Co., Ltd.||Induction charging apparatus|
|US5558429||Jun 13, 1994||Sep 24, 1996||Cain; Scott||Portable lighting device|
|US5662406||Feb 6, 1996||Sep 2, 1997||Mattice; Johnny M.||Lighted baby bottle|
|US5734229||Nov 29, 1995||Mar 31, 1998||Bavaro; Joseph P.||Back-up electrical system for portable table lamps|
|US5748080||Sep 30, 1996||May 5, 1998||Clay; Charles Matthew||Overboard safety device|
|US5754124||Nov 13, 1996||May 19, 1998||Pittco, Inc.||Electrical hazard warning system|
|US5801513||Dec 31, 1996||Sep 1, 1998||Motorola, Inc.||Apparatus for charging batteries and supplying backup power|
|US5844474 *||Jul 3, 1997||Dec 1, 1998||Saling; Brian Jay||Vehicle overload sensor|
|US5900715||Jul 29, 1997||May 4, 1999||Sportsound, Inc.||Portable unit recharging rack|
|US5908233||Nov 26, 1997||Jun 1, 1999||Heskett Bryon Kenneth||Auto rechargeable flashlight|
|US6000811||Mar 10, 1998||Dec 14, 1999||Bordak; John Joseph||Hanging emergency light assembly|
|US6016046||Jul 17, 1998||Jan 18, 2000||Sanyo Electric Co., Ltd.||Battery pack|
|US6034505||May 20, 1998||Mar 7, 2000||Selfcharge Inc.||Rechargeable charging cradle and night light|
|US6040680||Jul 20, 1998||Mar 21, 2000||Sanyo Electric Co., Ltd.||Rechargeable battery pack and charging stand for charging the rechargeable battery pack by electromagnetic induction|
|US6040780||Dec 9, 1998||Mar 21, 2000||Lucas; Michael||Child's personal security assistant|
|US6102549||Mar 23, 1998||Aug 15, 2000||Thomas; Stephen E.||Battery power pack and table lamp therefor|
|US6107744||Nov 24, 1997||Aug 22, 2000||Bavaro; Joseph P.||Back-up electrical systems|
|US6179438||Jun 30, 1999||Jan 30, 2001||Pelican Products, Inc.||Chargeable flashlight|
|US6186641||Jun 30, 1999||Feb 13, 2001||Pelican Products, Inc.||Flashlight and charging system|
|US6238061||Jun 17, 1999||May 29, 2001||Mckenzie Roy L.||Combination lighting system, alarm clock, radio and television having secondary power supply|
|US6243276||May 7, 1999||Jun 5, 2001||S-B Power Tool Company||Power supply system for battery operated devices|
|US6268027||Nov 17, 2000||Jul 31, 2001||Li-Hsiung Wu||Ornament for placement|
|US6479965||Jun 20, 2001||Nov 12, 2002||Vessel Inc.||Autoilluminating rechargeable lamp system|
|US6536917||Sep 11, 2000||Mar 25, 2003||Ray A. Aperocho||Combination flashlight and two-way radio|
|US6554445||Jan 17, 2002||Apr 29, 2003||Joseph Jacoby||Lamp body pouch|
|US6599001||May 22, 2001||Jul 29, 2003||James E. Johnson||Funeral procession warning apparatus|
|US6605900||Oct 17, 2001||Aug 12, 2003||Yung-Lin Chien||Rechargeable emergency lamp tube|
|US6633152||Apr 26, 2001||Oct 14, 2003||Streamlight, Inc.||Rechargeable flashlight and battery charger|
|US6634768||May 29, 2001||Oct 21, 2003||Mckenzie Roy L.||Emergency notification system|
|US6652115||Oct 26, 2001||Nov 25, 2003||Streamlight, Inc.||Battery charger structure and rechargeable flashlight system using the same|
|US6659621||Mar 22, 2002||Dec 9, 2003||Streamlight, Inc.||Flashlight with rotatable lamp head|
|US6819080||Nov 9, 2002||Nov 16, 2004||Vessel Inc.||Autoilluminating lamp system|
|US6851820||Jun 26, 2002||Feb 8, 2005||Weber-Stephen Products Company||Barbecue grill light|
|US6900595||Oct 15, 2002||May 31, 2005||Impolight, Ltd||Illumination unit for normal and emergency operation|
|US6909260||Apr 19, 2004||Jun 21, 2005||Pelican Products, Inc.||Flashlight charger and rechargeable battery|
|US6911917||Mar 27, 2001||Jun 28, 2005||Astucia (Uk) Limited||Hazard warning device, particularly for highway use|
|US6945664||Jun 16, 2004||Sep 20, 2005||Edward Frieling||Light signal by inverting|
|US6986589||Dec 13, 2003||Jan 17, 2006||Cyberlux Corporation||Apparatus and methods for providing an emergency lighting augmentation system|
|US7006002||Mar 8, 2004||Feb 28, 2006||Eton Corporation||Combination power failure light and FM/AM radio with a clock and alarm function|
|US7011426||Sep 19, 2003||Mar 14, 2006||Lederer Gabor||Modular electronic candle|
|US7029146||Apr 22, 2002||Apr 18, 2006||Edward F. Kitchen||Flameless candle|
|US7071625||Apr 8, 2003||Jul 4, 2006||Hsin-Hui Cheng||LED illuminator with capability of stable brightness|
|US7125145||May 29, 2001||Oct 24, 2006||Taylor Cutlery Llc||Multi-purpose equipment|
|US20020064041||Nov 1, 2001||May 30, 2002||Pelican Products, Inc.||Flashlight charger and rechargeable battery|
|US20030090892||Nov 13, 2001||May 15, 2003||Chin-Lai Su||Drinking vessel capable of emitting light and sound|
|US20030141819||Oct 15, 2002||Jul 31, 2003||Mose Cojocary||Illumination unit for normal and emergency operation|
|US20030142501||Jan 31, 2002||Jul 31, 2003||Georges Exilien||Orientation sensitive light for mounting on motorcycles and the like|
|US20040037069||Aug 23, 2002||Feb 26, 2004||Blackbourn Leigh George||Electronic candle|
|US20040160769||Oct 8, 2003||Aug 19, 2004||Currie Robert M.||Cordless LED light driving wall module and night light|
|US20040184273||Mar 20, 2003||Sep 23, 2004||Reynolds Daniel A.||Toilet night light|
|US20040252492||Jun 12, 2003||Dec 16, 2004||Peterson Darlene A.||Self-charging electric candle for window display|
|US20050194930||Nov 15, 2004||Sep 8, 2005||Barbeau Stefane E.||Autoilluminating rechargeable lamp system|
|US20050196716||Mar 3, 2005||Sep 8, 2005||Haab Dan B.||Artificial flame|
|US20050239007||Apr 25, 2005||Oct 27, 2005||Dell Aquila Luca||Device for supporting and lighting votive candles|
|US20050264261||Aug 12, 2005||Dec 1, 2005||Vessel, Inc.||Autoilluminating rechargeable lamp system|
|US20050284856||Jun 17, 2004||Dec 29, 2005||Helen Of Troy Limited||Rechargeable hair styling appliances and charging stand|
|US20060034078||Aug 10, 2005||Feb 16, 2006||Kovacik James D||Rechargeable LED utility light|
|US20060062019||Sep 22, 2004||Mar 23, 2006||Jean Young||Portable rechargeable night light|
|US20060072306||Oct 5, 2004||Apr 6, 2006||Woodyard Joe E||Spotlight system and method|
|US20060082988||Oct 20, 2004||Apr 20, 2006||Edward L. Riblett||Rechargeable triangular light emitting wand|
|US20060103543||Nov 2, 2004||May 18, 2006||Chang-Hao Chen||Mobile signal light set|
|US20060120069||Dec 7, 2004||Jun 8, 2006||Mag Instrument, Inc.||Circuitry for portable lighting devices and portable rechargeable electronic devices|
|US20060133089||Dec 16, 2004||Jun 22, 2006||3M Innovative Properties Company||Inspection light assembly|
|US20060139927||Feb 17, 2006||Jun 29, 2006||Alert Safety Lite Products Co., Inc.||Rechargeable fluorescent utility light|
|US20060171143||May 6, 2005||Aug 3, 2006||Yuen Se K||Handheld rechargeable electric torch|
|USD485390||Dec 6, 2002||Jan 13, 2004||B. Cameron Smith||Combined portable night light and recharging cradle|
|USD486787||Apr 1, 2003||Feb 17, 2004||Vector Products, Inc.||Charger base for rechargeable battery operated devices|
|USD495819||Apr 7, 2003||Sep 7, 2004||Vector Products, Inc.||Rechargeable battery operated candle light|
|USRE37092||Jul 9, 1997||Mar 13, 2001||Streamlight, Inc.||Flashlight and recharging system therefor|
|DE4220148A1||Jun 19, 1992||Dec 23, 1993||Johann Baptist Immerschitt||Trench warning light or artificial candle including LED and its voltage supply - has flashing circuit for periodic on=off switching of LED and flashing transmitter with capacitor connected between LED and voltage supply|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US8274258||Oct 30, 2009||Sep 25, 2012||Matthew Lloyd||Portable charging apparatus|
|US9689538 *||Nov 18, 2016||Jun 27, 2017||Shenzhen Liown Electronics Company Ltd.||Electronic candle having tilt sensor and blow sensors|
|US9709231||Dec 6, 2016||Jul 18, 2017||Shenzhen Liown Electronics Company Ltd.||Electronic lighting device|
|US9739432||Apr 25, 2016||Aug 22, 2017||Xiaofeng Li||Imitation candle and flame simulation assembly thereof|
|US9755438||Aug 9, 2013||Sep 5, 2017||Luminara Worldwide Llc||Charging station for electric candles and other devices|
|US9810388||Dec 2, 2016||Nov 7, 2017||Xiaofeng Li||Imitation candle and flame simulation assembly with multi-color illumination|
|US20110062911 *||Oct 30, 2009||Mar 17, 2011||Matthew Lloyd||Portable charging apparatus|
|US20170067606 *||Nov 18, 2016||Mar 9, 2017||Shenzhen Liown Electronics Company Ltd.||Induction rechargeable electronic candle system|
|U.S. Classification||320/107, 320/114|
|International Classification||H02J7/00, F21V23/00, F21V23/02, F21L4/08, F21S9/02, F21V23/04, F21L2/00, H01M10/46|
|Cooperative Classification||F21S9/022, F21V23/02, F21V23/0442, H02J9/02, H01M10/46, H01M10/441, F21L2/00, F21V23/04, F21L4/08|
|European Classification||F21S9/02E, F21V23/04, H01M10/46, H01M10/44B, F21L4/08, F21L2/00|
|Jul 2, 2012||REMI||Maintenance fee reminder mailed|
|Nov 18, 2012||LAPS||Lapse for failure to pay maintenance fees|