US3104924A - Lamp connector - Google Patents

Lamp connector Download PDF

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Publication number
US3104924A
US3104924A US857917A US85791759A US3104924A US 3104924 A US3104924 A US 3104924A US 857917 A US857917 A US 857917A US 85791759 A US85791759 A US 85791759A US 3104924 A US3104924 A US 3104924A
Authority
US
United States
Prior art keywords
lamp
cap member
wire leads
openings
socket
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
US857917A
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English (en)
Inventor
Capel Frederick Ernest
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.)
Noma Corp
Original Assignee
Noma Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Noma Corp filed Critical Noma Corp
Application granted granted Critical
Publication of US3104924A publication Critical patent/US3104924A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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

Definitions

  • Another object of the invention resides in the provision of a lamp holder and connector of new and improved construction having means for guiding and maintaining in properly spaced relation with respect to one another the lead-in wires of the baseless lamp and separate means for guiding and maintaining the wires of the main conductor in position for engagement with the lead-in wires of the lamp.
  • FIG. 1 is a sectional view on an enlarged scale of a lamp and lamp connector in accordance with one embodiment of the invention.
  • FIG. 2. is an exploded view showing the four parts including the lamp, cap, plug and lamp holder of FIG. 1.
  • FIGS. 3 and 4 are plan views respectively of the lamp cap and plug.
  • FIGS. 5 and 6 are respectively a vertical section and plan view of a lamp holder for use in the preferred embodiment of the invention.
  • FIG. 7 is a perspective view showing a con-tact for use with the lamp holder of FIGS. 5 and 6.
  • FIG. 8 is a diagrammatic view showing two lamps forming part of a lamp set connected in series.
  • FIG. 9 is a vertical section of the lamp holder shown in FIGS. 5 and 6, and a modified form of cap in their cooperative relation. 7
  • FIG. 10 is a cross section on the line 10-10 of FIG. 9 on an enlarged scale
  • FIG. 1-1 is a top plan view of the cap shown in FIG. 9'.
  • C indicates a baseless lamp as commonly used in lamp sets, in which a number of lamps are electrically connected in series by conductor wires: H indicates generally a flexible lamp holder and F the flexible leads of the conductor wires which are to be electrically connected to the lead-in wires of the lamp C through the lamp holder.
  • the lamp C has two exposed lead-in wires 1 which project from the end of the glass bulb and are connected in series to the conductor wire as diagrammatically shown in FIG. 8.
  • the lamp C is preferably of the type having an interior short circuiting strip eg of aluminum so that in the event of a failure of a lamp in the circuit the remaining lamps will remain alight, the current being short circuited through the strip.
  • One feature of the present invention resides in the use of a flexible recessed lamp cap member 3 which serves the dual purpose of locating and fixing the two lead-in wires relatively to one another and to the bulb and secondly as the means of locating the bulb in the lamp holder H.
  • the cap 3 as shown in FIG. 2 is in the form of a cup having a recess 4 to receive the bottom end of the lamp and extending through the base or transverse wall at the bottom of the recess of the cup are two spaced openings 5 through which the lead-in wires of the lamp are threaded.
  • the protruding ends of the leadin wires are bent oppositely radially outwards :and are then return bent to extend along the outside of the cap 3 reversely to their direction of extent through the openings 5 so as to lie flush with the outer face of the cap as shown in FIG. 1.
  • the cap thus serves to hold the two lead-in wires apart and in spaced relation to one another and locates them in relation to the bulb itself so that there is little risk of damage and they are ready to make electrical contact when placed in the lamp holder.
  • the lamp cap 3 is conveniently formed of plastic material since this provides the necessary insulation and enables it to be manufactured by a moulding operation.
  • the lamp holder H which is also of plastic for the same reason comprises a tubular member which is open at its lower end 7 to receive the conductor wires and at its upper end has a socket forming bore 8 of a size to receive the lamp and the lamp cap 3.
  • the body portion or shank 9 of the holder member tapers to the entry opening 7 for the conductor wires; the location of the conductor wires within the holder is preferably accomplished by means of a plug 10 in which 7 are axially extending circumferentially spaced grooves 11, 11', one for each conductor wire.
  • the grooved plug 10 being a wedge fit in the lamp holder, ensures that brass contacts on the ends of the wires F are held in position near the top of the holder or husk as it is sometimes called in the trade and at the same time the lower ends of the contacts, where they are joined to the conductor wires are kept apart and thus fully insulated.
  • FIGS. 5 and 6 there is shown a preferred lamp fitting in which the lamp holder consists of a tubular member 13 which is open at its lower end 13' to receive the conductor wires but in which the latter are both located and insulated from one another by internal ribs 12 which, as can be seen from FIG. 6, are diametrically opposite one another so as to form two separate compartments 14, 14' to receive the contacts on the ends of the conductor wire.
  • the contacts may each consist of an arcuate strip of metal after the form of a pen nib so that it is a tight fit in its associated compartment 14, when inserted therein.
  • FIG. 7 shows one shape of contact having a wide top 16 to fit the compartment but this is not essential and other arcuate section shapes may be used.
  • External ribs 17--17' may be provided on the outer surface of the holder so as to form a groove into which may be sprung an ornamental collar piece.
  • the lamp cap may be formed with projecting legs 20 as shown in FIG. 9, which legs are spaced from one another to provide an intervening groove receiving the ribs 12 of the husk 13.
  • the legs 20 are bored at 5 to receive the lead-in wires.
  • the eflfect of pushing the lamp assembly into the husk or holder will be that the flexible legs 20 which straddle (i.e. lie at right angles to) the ribs, will be forced apart, which results in a greater pressure of the lead-in wires against the contacts.
  • said wire leads respectively extending from said lamp through and outwardly beyond said wall and being bent to extend radially outwardly from said openings in opposite directions to the outsideof said cap member and also being return bent and both extending along the outside of said cap member reversely to their direction of extent through said openings;
  • tubular member of insulating material having a bore extending'inwardly from one end thereof and providing a socket removably receiving said cap member;
  • said guide means comprise a pair of opposed ribs in the socket of said tubular member extending axially thereof and a pair of opposed complementary grooves in said cap memher and extending axial-1y thereof.
  • each contact comprises an arcu-ate strip disposed along the inner surface of the socket-forming bore portion of said tubular member for cooperative frictional engagement with the reversely bent portion of a respective wire lead extending axially along the adjacent side of said base.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Connecting Device With Holders (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
US857917A 1959-01-12 1959-12-07 Lamp connector Expired - Lifetime US3104924A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1144/59A GB877946A (en) 1959-01-12 1959-01-12 Electric lamp holder and connector device

Publications (1)

Publication Number Publication Date
US3104924A true US3104924A (en) 1963-09-24

Family

ID=9716949

Family Applications (1)

Application Number Title Priority Date Filing Date
US857917A Expired - Lifetime US3104924A (en) 1959-01-12 1959-12-07 Lamp connector

Country Status (4)

Country Link
US (1) US3104924A (US08066781-20111129-C00013.png)
FR (1) FR1242262A (US08066781-20111129-C00013.png)
GB (1) GB877946A (US08066781-20111129-C00013.png)
NL (1) NL247064A (US08066781-20111129-C00013.png)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3182185A (en) * 1963-02-21 1965-05-04 Joseph M Ahroni Plug-in type christmas tree light
US3208032A (en) * 1962-09-25 1965-09-21 Tilesi Silvano Sockets for electric bulbs
US3214726A (en) * 1962-04-27 1965-10-26 Axial S A Novel safety plug and receptacle for low-tension installations
US3233207A (en) * 1964-02-21 1966-02-01 Joseph M Ahroni Decorative light
US3251023A (en) * 1963-12-26 1966-05-10 Gilbert Mfg Company Inc Directly attachable light socket
US3371306A (en) * 1965-06-18 1968-02-27 Moranduzzo Dario Lamp socket and bulb assembly
US3396363A (en) * 1967-01-16 1968-08-06 Nihon Yushutsu Denkyu Kyodo Ku Holding means for miniature bulbs
US3425027A (en) * 1967-07-03 1969-01-28 Ibm Plug-in panel lamp
US3434137A (en) * 1967-09-14 1969-03-18 Amp Inc Housing for indicating lamp or other electrical components
US3591793A (en) * 1968-12-23 1971-07-06 Jack D Mckim Panel light assembly
US3619598A (en) * 1969-02-27 1971-11-09 Mr Christmas Inc Decorative light ornaments
US5137465A (en) * 1991-07-01 1992-08-11 Cubiform Design & Development Co., Inc. Lightbulb and socket connecting mechanism
US5443399A (en) * 1994-02-01 1995-08-22 Jing; Wang S. Electric light bulb socket positioner for lamp assemblies
US5464354A (en) * 1994-02-01 1995-11-07 Akman; Alp T. Parallel and series plugs and wiring segments for ballon display
US5531610A (en) * 1994-04-08 1996-07-02 Chen; Chen Y. Connecting mechanism for bulb holder and socket
US5722860A (en) * 1996-12-09 1998-03-03 Pan; Wun Fang Watertight socket structure for use in a light bulb series
US5791940A (en) * 1996-10-18 1998-08-11 Chen; Chen-Yuan Bulb socket and socket holder assembly
US20070066146A1 (en) * 2005-09-21 2007-03-22 Ho-Hsin Chiu Socket for c-type light bulb

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3541381A (en) * 1967-07-05 1970-11-17 Tohwa Electric Co Ltd Plug-in lighting assembly
DE2905872C3 (de) * 1979-02-16 1981-11-19 Rafi Gmbh & Co Elektrotechnische Spezialfabrik, 7981 Berg Adapter zur Halterung von Leuchtdioden o.dgl.
FR2563951A1 (fr) * 1984-05-04 1985-11-08 Paduch Maison Charles Support d'ampoule d'eclairage de decoration lumineuse
DE4037964A1 (de) * 1990-11-29 1992-06-04 Albrecht Paul Halterung fuer eine elektrische kleingluehlampe

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US950899A (en) * 1909-03-11 1910-03-01 Augustus N Dods Plug for electrical connections.
US1551876A (en) * 1921-06-08 1925-09-01 Electric Outlet Company Inc Electrical connection device
DE483831C (de) * 1926-07-04 1929-10-07 Eddo Thedinga Dr Leitungsanschluss fuer mehrpolige Steckvorrichtungen, Lampenfassungen o. dgl.
US1905843A (en) * 1931-11-21 1933-04-25 Gen Electric Vapor Lamp Co Base and socket for electric lamps
US2025564A (en) * 1932-12-24 1935-12-24 Gen Electric Electrical socket
US2032232A (en) * 1932-07-13 1936-02-25 Gen Electric Incandescent lamp and method of manufacture the same
US2042580A (en) * 1934-07-30 1936-06-02 Bernfeld James Cord terminal plug
US2074397A (en) * 1934-04-05 1937-03-23 Crosley Radio Corp Base and socket for radio tubes
US2419395A (en) * 1945-05-21 1947-04-22 Gen Electric Electric lamp
US2507462A (en) * 1947-10-23 1950-05-09 Ira G Sellers Electric plug
US2677118A (en) * 1951-10-31 1954-04-27 Gen Electric Electric lamp or similar device and method of manufacture
US2733421A (en) * 1953-09-15 1956-01-31 grovemiller
FR1137307A (fr) * 1954-05-20 1957-05-27 Philips Nv Lampe à incandescence

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US950899A (en) * 1909-03-11 1910-03-01 Augustus N Dods Plug for electrical connections.
US1551876A (en) * 1921-06-08 1925-09-01 Electric Outlet Company Inc Electrical connection device
DE483831C (de) * 1926-07-04 1929-10-07 Eddo Thedinga Dr Leitungsanschluss fuer mehrpolige Steckvorrichtungen, Lampenfassungen o. dgl.
US1905843A (en) * 1931-11-21 1933-04-25 Gen Electric Vapor Lamp Co Base and socket for electric lamps
US2032232A (en) * 1932-07-13 1936-02-25 Gen Electric Incandescent lamp and method of manufacture the same
US2025564A (en) * 1932-12-24 1935-12-24 Gen Electric Electrical socket
US2074397A (en) * 1934-04-05 1937-03-23 Crosley Radio Corp Base and socket for radio tubes
US2042580A (en) * 1934-07-30 1936-06-02 Bernfeld James Cord terminal plug
US2419395A (en) * 1945-05-21 1947-04-22 Gen Electric Electric lamp
US2507462A (en) * 1947-10-23 1950-05-09 Ira G Sellers Electric plug
US2677118A (en) * 1951-10-31 1954-04-27 Gen Electric Electric lamp or similar device and method of manufacture
US2733421A (en) * 1953-09-15 1956-01-31 grovemiller
FR1137307A (fr) * 1954-05-20 1957-05-27 Philips Nv Lampe à incandescence

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3214726A (en) * 1962-04-27 1965-10-26 Axial S A Novel safety plug and receptacle for low-tension installations
US3208032A (en) * 1962-09-25 1965-09-21 Tilesi Silvano Sockets for electric bulbs
US3182185A (en) * 1963-02-21 1965-05-04 Joseph M Ahroni Plug-in type christmas tree light
US3251023A (en) * 1963-12-26 1966-05-10 Gilbert Mfg Company Inc Directly attachable light socket
US3233207A (en) * 1964-02-21 1966-02-01 Joseph M Ahroni Decorative light
US3371306A (en) * 1965-06-18 1968-02-27 Moranduzzo Dario Lamp socket and bulb assembly
US3396363A (en) * 1967-01-16 1968-08-06 Nihon Yushutsu Denkyu Kyodo Ku Holding means for miniature bulbs
US3425027A (en) * 1967-07-03 1969-01-28 Ibm Plug-in panel lamp
US3434137A (en) * 1967-09-14 1969-03-18 Amp Inc Housing for indicating lamp or other electrical components
US3591793A (en) * 1968-12-23 1971-07-06 Jack D Mckim Panel light assembly
US3619598A (en) * 1969-02-27 1971-11-09 Mr Christmas Inc Decorative light ornaments
US5137465A (en) * 1991-07-01 1992-08-11 Cubiform Design & Development Co., Inc. Lightbulb and socket connecting mechanism
US5443399A (en) * 1994-02-01 1995-08-22 Jing; Wang S. Electric light bulb socket positioner for lamp assemblies
US5464354A (en) * 1994-02-01 1995-11-07 Akman; Alp T. Parallel and series plugs and wiring segments for ballon display
US5531610A (en) * 1994-04-08 1996-07-02 Chen; Chen Y. Connecting mechanism for bulb holder and socket
US5791940A (en) * 1996-10-18 1998-08-11 Chen; Chen-Yuan Bulb socket and socket holder assembly
US5722860A (en) * 1996-12-09 1998-03-03 Pan; Wun Fang Watertight socket structure for use in a light bulb series
US20070066146A1 (en) * 2005-09-21 2007-03-22 Ho-Hsin Chiu Socket for c-type light bulb

Also Published As

Publication number Publication date
NL247064A (US08066781-20111129-C00013.png) 1964-02-10
GB877946A (en) 1961-09-20
FR1242262A (fr) 1960-09-23

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