US3783437A - Lamp and socket for decorative string set - Google Patents

Lamp and socket for decorative string set Download PDF

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Publication number
US3783437A
US3783437A US00187348A US3783437DA US3783437A US 3783437 A US3783437 A US 3783437A US 00187348 A US00187348 A US 00187348A US 3783437D A US3783437D A US 3783437DA US 3783437 A US3783437 A US 3783437A
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US
United States
Prior art keywords
stem press
indentation
lead
groove
lamp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00187348A
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English (en)
Inventor
J Graff
R Rhoades
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
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Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
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Publication of US3783437A publication Critical patent/US3783437A/en
Anticipated expiration legal-status Critical
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
    • H01K1/46—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp supported by a separate part, e.g. base, cap
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/10—Lighting devices or systems using a string or strip of light sources with light sources attached to loose electric cables, e.g. Christmas tree lights
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
    • H01K1/44—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp directly applied to, or forming part of, the vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/05—Two-pole devices
    • H01R33/06—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other
    • H01R33/09—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for baseless lamp bulb

Definitions

  • ABSTRACT An electric lamp having a stem press with opposite parallel faces, each face having a groove terminating in an end wall followed by an indentation, lead wires bent around the stem presss outer edge are guided by the respective grooves so as to be positioned over the indentations.
  • a socket with two contacts adapted to engage the stern press of a lamp, each contact having two fingers one of which makes electrical contactwith the lamps bent around lead wires while the other fin- I get contacts the glass portion of the stem press.
  • the invention relates to electric lamps and sockets for use in decorative lighting such as Christmas tree string sets. More particularly, the invention relates to the stern press and socket constructions.
  • Decorative lamp and socket combinations presently in use consist of a lamp, a separate base, and a socket.
  • an incandescent lamp with extended lead wires is secured to a base having two legs with openings through which the lamps lead wires pass. The respective extended portions of the lead wires are bent around the base legs before insertion into a socket.
  • lamp-base-socket combination One of the difficulties of a lamp-base-socket combination is the reduced electrical reliability due to the increased number of connections, i.e., lamp-to-base, base-to-socket. Furthermore, the lamp-base-socket combination is inherently more expensive because of the added material costs of a separate base and the additional labor cost of assembling the base to the lamp.
  • a baseless lamp socket combination as described in'U.S. Pat. No. 3,286,088, consists of a lamp with a'grooved stem press and rigid socket contacts with ribs to fit the grooves thereby making electrical contact with the bent-around lead wires in each groove.
  • One of the disadvantages of this combination is the fixed position of the rigid contacts which do not always touch the lead wires because of variations in the dimensions of the component parts.
  • Baseless lamps of this type are also susceptible to falling out of the socket when jarred or vibrated. Since typical dimensions of this type of decorative lamp socket combination are 0.250 inch for the lamps stem press and 0.0l inch for the groove, a variation as small as 0.005 inch can give rise tothe above problem.
  • envelope of an incandescent lamp is provided with a stem press having opposite substantially parallel faces each of which is provided with a guideway or groove leading to an indentation.
  • the lamps lead wires are bent around the outer edge of the stem press and are guided by the respective grooves so as to overlie the indentations.
  • the socket of the invention is comprised of power leads, a husk and two contacts secured therein.
  • Each contact has two fingers which are positioned in slots of the husk so that one finger of each contact will firmly press each lead wire in each indentation and the other two fingers will exert a compressive force against the fiat portions of the stem press.
  • the contacts are made of spring-like material and positioned such that they form an interference fit with the stem press of the lamp irrespective of minor dimensional variations. This construction not only gives a reliable electrical and mechanical connection between the socket and the lamp but also eliminates the need for a base.
  • FIG. 1 is an elevation view of the lamp of the invention
  • FIG. 2 is a fragmentary perspective view of the lamps stem press
  • FIG. 3 is an exploded elevation view of the power leads, contacts and husk.
  • FIG. 4 is an elevation view and partial section of the assembled lamp and socket taken along section line 4-4 in FIGS. 1 and 3.
  • FIG. 1 of the drawings illustrates an incandescent lamp 11 having an envelope 12 with a stem press 13.
  • Filament 14 is connected to lead wires 15 and I6 which are held in position by glass bead I7.
  • Lamps of the type illustrated are generally used as Christmas tree lamps which are electrically connected in series in a string set.
  • oxidized cutout wire 18 is wrapped around the leads just above the glass bead 17. This wire will electrically connect the two lead wires below the filament if the filament fails.
  • Lead wires 15 and 16 are hermetically sealed in stem press 13 and extend beyond the stem presss outer edge 19.
  • stem press 13 has parallel faces 20, 21 and sides 22, 23.
  • Face 20 contains groove 24 which is separated from indentation 25 by end wall 26.
  • Slot 27, which is longitudinally aligned with groove 24 extends from the upper wall of indentation 25 toward envelope 12.
  • Indentation 25 extends from one side to approximately the center of the stem press.
  • Parallel face 21 is constructed similar to face 20.
  • Groove 28, indentation 29, and slot 30 of face 21, shown by dotted lines, correspond to groove 24, indentation 25 and slot 26 respectively of face 20.
  • the extended portion of lead wire 15 is bent around outer edge 19 and positioned or guided by groove 24 so that part of the extended lead wire passes over end wall 26 down into indentation 25.
  • the end of lead wire 15 is positioned in slot 27 which is aligned with groove 24.
  • the positioning of the end of the lead wire in slot 27 gives an improved lead alignment.
  • slot 27 is not essential to all embodiments of the invention, it is recommended for optimum results inasmuch as it serves to locate the end of the lead wire in fixed position.
  • Lead wire 16 is bent around outer edge 19 in the opposite direction so as to overlie indentation 29 of opposite parallel face 21. After the bending and positioning of the lead wires, the lamp is ready for insertion into socket 31, the component parts of which are shown in an exploded view in FIG. 3.
  • Socket 31 is comprised of two contacts 32, 33, power leads 34, 35 and husk 36.
  • Contacts 32 and 33 each have two fingers 37, 37', 38, 38 for engaging the lamps lead wires and stem press.
  • slots 45, 46 are tapered from top to bottom such that the depth of the slots into the husk wall is greater at the top of husk 36 than at the bottom.
  • the distance at the top is selected such that it is slightly greater than the distance between the tips 47 of notched sides.
  • the tapering of the slots serves two purposes. First, the clearance fit at the top facilitates assembly of the contact and husk, while the interference fit at the bottom prevents contact removal.
  • the power leads are drawn through bores 48 shown in FIG. 4.
  • the lamp of FIG. 1 can then be inserted in the socket.
  • Contacts 32, 33 are spaced within the husk 36 so that there is an interference fit between stern press 13 and both contacts. This interference fit along with the resiliency of the spring-like material of the contacts generates a constant compressive force on the lamps stem press to hold the lamp and maintain a reliable connection.
  • Indentation 29 and the lead wire diameter are sized such that the top of the lead wire is approximately flush with the surface of the stem press.
  • finger 37 of contact 32 presses bent'around lead wire 16 against the glass surface of the indentation 29, as shown in FIG. 4.
  • finger 38' of contact 33 exerts a force opposite that of the force exerted by finger 37.
  • Adjacent fingers 37 and 38, not shown in FIG. 4, exert a similar force on the other side of stem press 13.
  • each contact 32 and 33 By constructing each contact 32 and 33 with separate fingers, one of which grips a lamp lead wire and the other the face of the lamp stem press, a considerable latitude is developed by relative movement between the fingers to compensate for manufacturing tolerances and small variations in the dimensions of the stem press and lead wires. This insures good electrical contact with the lamp, and firm seating of the lamp in the husk, inspite of the above-mentioned variations and tolerances which sometimes'appear in manufacture of the ultra-miniature lamp of this invention. Because the lamp lead wires are positioned in grooves in the stern press they are always in position for gripping by a socket finger and cannot become bent or displaced such as to prevent a good electrical connection between the lamp and the socket.
  • An electric lamp and socket combination comprising a sealed vitreous envelope, with lead-in conductors hermetically sealed in and extending from the stem press of said envelope, said stem press having opposite substantially parallel faces and sides, one of said faces containing an indentation extending from one side to approximately the center of said stem press, a groove extending from the outer edge of said stem press inwardly toward said envelope and terminating in an end wall before reaching said indentation, said opposite face of said stem press being similarly constructed such that said indentations are on opposite sides of said stem press, the extended portion of one of said lead-in conductors being bent around the outer edge of said stem press and positioned in said groove, said lead-in conductor rising out of said groove over said end wall and overlying said indentation, said other lead-in conductor being bent and positioned in the groove and over the indentation of the opposite face, said socket comprising a husk with a cavity for receiving said lamp, two bores extending through the wall of said husk into said cavity, two power leads extending into
  • each face of said stem press has a slot, longitudinally aligned with said groove, which extends from the upper edge of said indentation toward said envelope, wherein the end of said lead-in wire is positioned in said slot to give an accurate alignment.
  • An electric lamp comprising a sealed vitreous envelope, with lead-in conductors hermetically sealed in and extending from a stem press of said envelope, said stem press having opposite substantially parallel faces and sides, each of said faces containing an indentation extending from one side to approximately the center of said stem press, a groove extending from the outer edge of said stem press inwardly toward said envelope and terminating in an end wall before reaching said indentation, said opposite face of said stem press being simi larly constructed such that said indentations are on op posite sides of said stem press, the extended portion of one of said lead-in conductors being bent around the outer edge of said stem press and positioned in said groove, said lead-in conductor rising out of said groove over said end wall and overlying said indentation, said other lead-in conductor being bent and positioned in the groove and over the indentation of the opposite face.
  • each face of said stem press has a slot, longitudinally aligned with said groove, which extends from the upper edge of said indentation toward said envelope.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Connecting Device With Holders (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
US00187348A 1971-10-07 1971-10-07 Lamp and socket for decorative string set Expired - Lifetime US3783437A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18734871A 1971-10-07 1971-10-07

Publications (1)

Publication Number Publication Date
US3783437A true US3783437A (en) 1974-01-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00187348A Expired - Lifetime US3783437A (en) 1971-10-07 1971-10-07 Lamp and socket for decorative string set

Country Status (5)

Country Link
US (1) US3783437A (enrdf_load_stackoverflow)
JP (2) JPS4846175A (enrdf_load_stackoverflow)
FR (1) FR2155634A5 (enrdf_load_stackoverflow)
GB (2) GB1384739A (enrdf_load_stackoverflow)
HK (1) HK44277A (enrdf_load_stackoverflow)

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3950061A (en) * 1974-12-20 1976-04-13 Industrial Devices, Inc. Socket for wedge base lamp
EP0031069A3 (en) * 1979-12-20 1981-11-25 Tokyo Shibaura Denki Kabushiki Kaisha A baseless incandescent lamp assembly
EP0031511A3 (en) * 1979-12-20 1981-11-25 Tokyo Shibaura Denki Kabushiki Kaisha A method for manufacturing a baseless incandescent lamp assembly
EP0031068B1 (en) * 1979-12-20 1984-06-06 Kabushiki Kaisha Toshiba A method for manufacturing a baseless incandescent lamp assembly
US4647132A (en) * 1984-12-17 1987-03-03 Ford Motor Company Retaining mechanism for securing a lamp base within a socket
DE3611788A1 (de) * 1986-04-08 1987-10-15 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrische lampe und verfahren zu ihrer herstellung
US4752241A (en) * 1986-02-24 1988-06-21 Koito Manufacturing Co., Ltd. L-shaped bulb socket
US4753609A (en) * 1985-08-12 1988-06-28 Adc Telecommunications, Inc. Lamp receiving apparatus
US5018992A (en) * 1988-05-20 1991-05-28 Gte Products Corporation Wedge lamp and clip
US5120233A (en) * 1984-12-17 1992-06-09 Ford Motor Company Retaining mechanism for securing a lamp base with a socket
US5304076A (en) * 1992-04-24 1994-04-19 Lumatech Lamp electrical contact
US5921819A (en) * 1995-09-19 1999-07-13 Samsung Electronics Co., Ltd. Backlight including a replaceable light tube for a liquid crystal display
DE20118023U1 (de) 2001-06-11 2002-03-14 FOSHAN JUNLANG ELECTRICAL AND LIGHTING CO., LTD., Foshan, Gunagdong Einseitiger Lampenfuß der Halogenwolfram-Lampe
US20040105270A1 (en) * 2002-12-03 2004-06-03 Whiter Shieh Shunt element contacting structure for decorative lamp holder
US7253556B1 (en) 2006-12-08 2007-08-07 Tech Patent Licensing, Llc Light string socket with mechanical shunt
US7453194B1 (en) 2008-06-05 2008-11-18 Gibboney James W Mechanical shunt for use in the sockets of a string of lights
US7554266B1 (en) 2007-09-11 2009-06-30 Willis Electric Co., Ltd. Mechanical shunt for use in a socket in a string of lights
US20100003891A1 (en) * 2007-12-06 2010-01-07 Willis Electric Co., Ltd. Three dimensional displays having deformable constructions
US20100289415A1 (en) * 2009-05-18 2010-11-18 Johnny Chen Energy efficient decorative lighting
US20110085327A1 (en) * 2009-10-14 2011-04-14 Johnny Chen Decorative light display with LEDs
DE102010023000B3 (de) * 2010-06-08 2011-11-10 Heraeus Noblelight Gmbh Strahler mit Quarzglaskolben und Stromdurchführung
US20110312225A1 (en) * 2010-06-22 2011-12-22 Alltop Electronics (Suzhou) Co., Ltd Power connector with improved retaining member for being flexibly assembled to power contact
US8870404B1 (en) 2013-12-03 2014-10-28 Willis Electric Co., Ltd. Dual-voltage lighted artificial tree
US8876321B2 (en) 2011-12-09 2014-11-04 Willis Electric Co., Ltd. Modular lighted artificial tree
US8936379B1 (en) 2010-09-23 2015-01-20 Willis Electric Co., Ltd. Modular lighted tree
US9044056B2 (en) 2012-05-08 2015-06-02 Willis Electric Co., Ltd. Modular tree with electrical connector
US9140438B2 (en) 2013-09-13 2015-09-22 Willis Electric Co., Ltd. Decorative lighting with reinforced wiring
US9157587B2 (en) 2011-11-14 2015-10-13 Willis Electric Co., Ltd. Conformal power adapter for lighted artificial tree
US9157588B2 (en) 2013-09-13 2015-10-13 Willis Electric Co., Ltd Decorative lighting with reinforced wiring
US9179793B2 (en) 2012-05-08 2015-11-10 Willis Electric Co., Ltd. Modular tree with rotation-lock electrical connectors
US9222656B2 (en) 2011-11-14 2015-12-29 Willis Electric Co., Ltd. Conformal power adapter for lighted artificial tree
US9439528B2 (en) 2013-03-13 2016-09-13 Willis Electric Co., Ltd. Modular tree with locking trunk and locking electrical connectors
US9572446B2 (en) 2012-05-08 2017-02-21 Willis Electric Co., Ltd. Modular tree with locking trunk and locking electrical connectors
US9671074B2 (en) 2013-03-13 2017-06-06 Willis Electric Co., Ltd. Modular tree with trunk connectors
US9883566B1 (en) 2014-05-01 2018-01-30 Willis Electric Co., Ltd. Control of modular lighted artificial trees
US9883706B2 (en) 2011-05-20 2018-02-06 Willis Electric Co., Ltd. Multi-positional, locking artificial tree trunk
US9894949B1 (en) 2013-11-27 2018-02-20 Willis Electric Co., Ltd. Lighted artificial tree with improved electrical connections
US10206530B2 (en) 2012-05-08 2019-02-19 Willis Electric Co., Ltd. Modular tree with locking trunk
US10683974B1 (en) 2017-12-11 2020-06-16 Willis Electric Co., Ltd. Decorative lighting control
US10711954B2 (en) 2015-10-26 2020-07-14 Willis Electric Co., Ltd. Tangle-resistant decorative lighting assembly

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8311269U1 (de) * 1983-04-15 1984-09-20 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Leuchte zum bajonettartigen einbau in eine anzeigeeinrichtung
JPS6090784U (ja) * 1983-11-29 1985-06-21 日本精機株式会社 ウエツジベ−ス電球用ソケツト端子
DE3400449A1 (de) * 1984-01-09 1985-07-18 Philips Patentverwaltung Gmbh, 2000 Hamburg Elektrische lampe mit in einem huelsenfoermigen sockel gelagerten quetschfuss
JPS61162979U (enrdf_load_stackoverflow) * 1985-03-29 1986-10-08
JP2602829B2 (ja) * 1987-04-23 1997-04-23 株式会社日立製作所 回転電機の電機子巻線
JPS6451286U (enrdf_load_stackoverflow) * 1987-09-22 1989-03-29

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* Cited by examiner, † Cited by third party
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US2110035A (en) * 1936-06-04 1938-03-01 Chirelstein Nathan Attachment plug
US2329471A (en) * 1942-08-07 1943-09-14 Bell Telephone Labor Inc Electrical terminal
US3050705A (en) * 1959-07-14 1962-08-21 United Carr Fastener Corp Electrical assembly
US3130921A (en) * 1961-09-13 1964-04-28 King Bee Mfg Co Vehicle lamp mounting
US3143301A (en) * 1961-10-05 1964-08-04 Peterson Mfg Company Lamp assembly with resilient mounting for wedge base bulbs
US3286088A (en) * 1965-08-16 1966-11-15 Joseph M Ahroni Plug in light
US3523274A (en) * 1966-09-07 1970-08-04 John J Horan Simplified lamp and structure coaction system
US3648044A (en) * 1968-12-13 1972-03-07 Smiths Industries Ltd Holder for a capless light bulb
US3671923A (en) * 1971-05-03 1972-06-20 Stewart Warner Corp Lamp socket

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2110035A (en) * 1936-06-04 1938-03-01 Chirelstein Nathan Attachment plug
US2329471A (en) * 1942-08-07 1943-09-14 Bell Telephone Labor Inc Electrical terminal
US3050705A (en) * 1959-07-14 1962-08-21 United Carr Fastener Corp Electrical assembly
US3130921A (en) * 1961-09-13 1964-04-28 King Bee Mfg Co Vehicle lamp mounting
US3143301A (en) * 1961-10-05 1964-08-04 Peterson Mfg Company Lamp assembly with resilient mounting for wedge base bulbs
US3286088A (en) * 1965-08-16 1966-11-15 Joseph M Ahroni Plug in light
US3523274A (en) * 1966-09-07 1970-08-04 John J Horan Simplified lamp and structure coaction system
US3648044A (en) * 1968-12-13 1972-03-07 Smiths Industries Ltd Holder for a capless light bulb
US3671923A (en) * 1971-05-03 1972-06-20 Stewart Warner Corp Lamp socket

Cited By (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3950061A (en) * 1974-12-20 1976-04-13 Industrial Devices, Inc. Socket for wedge base lamp
EP0031069A3 (en) * 1979-12-20 1981-11-25 Tokyo Shibaura Denki Kabushiki Kaisha A baseless incandescent lamp assembly
EP0031511A3 (en) * 1979-12-20 1981-11-25 Tokyo Shibaura Denki Kabushiki Kaisha A method for manufacturing a baseless incandescent lamp assembly
EP0031068B1 (en) * 1979-12-20 1984-06-06 Kabushiki Kaisha Toshiba A method for manufacturing a baseless incandescent lamp assembly
US4647132A (en) * 1984-12-17 1987-03-03 Ford Motor Company Retaining mechanism for securing a lamp base within a socket
US5120233A (en) * 1984-12-17 1992-06-09 Ford Motor Company Retaining mechanism for securing a lamp base with a socket
US4753609A (en) * 1985-08-12 1988-06-28 Adc Telecommunications, Inc. Lamp receiving apparatus
US4752241A (en) * 1986-02-24 1988-06-21 Koito Manufacturing Co., Ltd. L-shaped bulb socket
DE3611788A1 (de) * 1986-04-08 1987-10-15 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrische lampe und verfahren zu ihrer herstellung
US5018992A (en) * 1988-05-20 1991-05-28 Gte Products Corporation Wedge lamp and clip
US5304076A (en) * 1992-04-24 1994-04-19 Lumatech Lamp electrical contact
US5921819A (en) * 1995-09-19 1999-07-13 Samsung Electronics Co., Ltd. Backlight including a replaceable light tube for a liquid crystal display
DE20118023U1 (de) 2001-06-11 2002-03-14 FOSHAN JUNLANG ELECTRICAL AND LIGHTING CO., LTD., Foshan, Gunagdong Einseitiger Lampenfuß der Halogenwolfram-Lampe
US20040105270A1 (en) * 2002-12-03 2004-06-03 Whiter Shieh Shunt element contacting structure for decorative lamp holder
US6805463B2 (en) * 2002-12-03 2004-10-19 Whiter Shieh Shunt element contacting structure for decorative lamp holder
US7253556B1 (en) 2006-12-08 2007-08-07 Tech Patent Licensing, Llc Light string socket with mechanical shunt
US7554266B1 (en) 2007-09-11 2009-06-30 Willis Electric Co., Ltd. Mechanical shunt for use in a socket in a string of lights
US7943211B2 (en) 2007-12-06 2011-05-17 Willis Electric Co., Ltd. Three dimensional displays having deformable constructions
US20100003891A1 (en) * 2007-12-06 2010-01-07 Willis Electric Co., Ltd. Three dimensional displays having deformable constructions
US20110195204A1 (en) * 2007-12-06 2011-08-11 Johnny Chen Three dimensional displays having deformable constructions
US7453194B1 (en) 2008-06-05 2008-11-18 Gibboney James W Mechanical shunt for use in the sockets of a string of lights
US20100289415A1 (en) * 2009-05-18 2010-11-18 Johnny Chen Energy efficient decorative lighting
US20110085327A1 (en) * 2009-10-14 2011-04-14 Johnny Chen Decorative light display with LEDs
DE102010023000B3 (de) * 2010-06-08 2011-11-10 Heraeus Noblelight Gmbh Strahler mit Quarzglaskolben und Stromdurchführung
US20110312225A1 (en) * 2010-06-22 2011-12-22 Alltop Electronics (Suzhou) Co., Ltd Power connector with improved retaining member for being flexibly assembled to power contact
US8403707B2 (en) * 2010-06-22 2013-03-26 Alltop Electronics (Suzhou) Co., Ltd Power connector with improved retaining member for being flexibly assembled to power contact
US9887501B2 (en) 2010-09-23 2018-02-06 Willis Electric Co., Ltd. Modular artificial lighted tree with decorative light string
US8936379B1 (en) 2010-09-23 2015-01-20 Willis Electric Co., Ltd. Modular lighted tree
US8974072B2 (en) 2010-09-23 2015-03-10 Willis Electric Co., Ltd. Modular lighted tree with trunk electrical connectors
US10070675B2 (en) 2010-09-23 2018-09-11 Willis Electric Co., Ltd. Modular lighted tree with internal electrical connection system
US9055777B2 (en) 2010-09-23 2015-06-16 Willis Electric Co., Ltd. Modular artificial lighted tree with decorative light string
US9861147B1 (en) 2010-09-23 2018-01-09 Willis Electric Co., Ltd. Modular lighted tree
US9484687B1 (en) 2010-09-23 2016-11-01 Willis Electric Co., Ltd. Modular lighted tree
US9883706B2 (en) 2011-05-20 2018-02-06 Willis Electric Co., Ltd. Multi-positional, locking artificial tree trunk
US9157587B2 (en) 2011-11-14 2015-10-13 Willis Electric Co., Ltd. Conformal power adapter for lighted artificial tree
US9222656B2 (en) 2011-11-14 2015-12-29 Willis Electric Co., Ltd. Conformal power adapter for lighted artificial tree
US9677749B2 (en) 2011-11-14 2017-06-13 Willis Electric Co., Ltd. Conformal power adapter for lighted artificial tree
US9664362B2 (en) 2011-11-14 2017-05-30 Willis Electric Co., Ltd. Lighted artificial tree with multi-terminal electrical connectors for power distribution and control
US9441800B1 (en) 2011-12-09 2016-09-13 Willis Electric Co., Ltd. Modular lighted artificial tree
US8876321B2 (en) 2011-12-09 2014-11-04 Willis Electric Co., Ltd. Modular lighted artificial tree
US9441823B1 (en) 2011-12-09 2016-09-13 Willis Electric Co., Ltd. Modular lighted artificial tree
US9526286B2 (en) 2012-05-08 2016-12-27 Willis Electric Co., Ltd. Modular tree with electrical connector
US9179793B2 (en) 2012-05-08 2015-11-10 Willis Electric Co., Ltd. Modular tree with rotation-lock electrical connectors
US9044056B2 (en) 2012-05-08 2015-06-02 Willis Electric Co., Ltd. Modular tree with electrical connector
US9572446B2 (en) 2012-05-08 2017-02-21 Willis Electric Co., Ltd. Modular tree with locking trunk and locking electrical connectors
US9648919B2 (en) 2012-05-08 2017-05-16 Willis Electric Co., Ltd. Modular tree with rotation-lock electrical connectors
US10010208B2 (en) 2012-05-08 2018-07-03 Willis Electric Co., Ltd. Modular tree with electrical connector
US10206530B2 (en) 2012-05-08 2019-02-19 Willis Electric Co., Ltd. Modular tree with locking trunk
US9439528B2 (en) 2013-03-13 2016-09-13 Willis Electric Co., Ltd. Modular tree with locking trunk and locking electrical connectors
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Also Published As

Publication number Publication date
FR2155634A5 (enrdf_load_stackoverflow) 1973-05-18
GB1384740A (en) 1975-02-19
JPS53105077A (en) 1978-09-12
JPS4846175A (enrdf_load_stackoverflow) 1973-07-02
HK44277A (en) 1977-09-09
GB1384739A (en) 1975-02-19

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