GB2392015A - Connector of lamp unit - Google Patents

Connector of lamp unit Download PDF

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Publication number
GB2392015A
GB2392015A GB0218960A GB0218960A GB2392015A GB 2392015 A GB2392015 A GB 2392015A GB 0218960 A GB0218960 A GB 0218960A GB 0218960 A GB0218960 A GB 0218960A GB 2392015 A GB2392015 A GB 2392015A
Authority
GB
United Kingdom
Prior art keywords
lamp unit
unit
base
light bulb
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.)
Withdrawn
Application number
GB0218960A
Other versions
GB0218960D0 (en
Inventor
Frank Padgett
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB0218960A priority Critical patent/GB2392015A/en
Publication of GB0218960D0 publication Critical patent/GB0218960D0/en
Publication of GB2392015A publication Critical patent/GB2392015A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/03—Lighting devices intended for fixed installation of surface-mounted type
    • F21S8/033—Lighting devices intended for fixed installation of surface-mounted type the surface being a wall or like vertical structure, e.g. building facade
    • F21S8/035—Lighting devices intended for fixed installation of surface-mounted type the surface being a wall or like vertical structure, e.g. building facade by means of plugging into a wall outlet, e.g. night light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/02—Cages
    • 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
    • H01R33/94—Holders formed as intermediate parts for linking a counter-part to a coupling part
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/72—Means for accommodating flexible lead within the holder

Abstract

A lamp unit for use by a workman comprises a base (10) carrying a coupling (12) for a light bulb (B), and a set of pins (P) projecting from the underside of the base, for plugging the unit into a mains electrical socket. The lamp unit has a protective cage (18) mounted to the base (10) to enclose the light bulb. Alternatively, a lamp socket may be mounted in the reel of a trailing lead (figure 5, not shown).

Description

239201 5
Electrical lamp unit The present invention relates to an electrical lamp unit for use by a workman.
Workmen often need to supplement the light available to them at the particular location where they are required to 5 undertake a task. A number of lighting devices have been used or proposed hitherto, but suffer various limitations.
I have now devised a lamp unit which is of simple construction and yet easy and effective to use.
In accordance with the present invention, there is 10 provided a lamp unit which comprises a base carrying a coupling for a light bulb, and a set of pins projecting from the underside of the base, for plugging the unit into a mains electrical socket.
It will be appreciated that this lamp unit may be plugged into a mains electrical socket in order to provide illumination 15 for a workman.
If a fixed mains socket is insufficiently close, the lamp unit may be plugged into the electrical socket of an extension cable unit: preferably a multi-socket extension cable unit (typically having 3 or 4 outlet sockets) would be used, enabling 20 the workman to use the other sockets for power tools.
Preferably the lamp unit includes an ON/OFF switch for switching the light on or off when the unit is plugged into a live socket. Preferably the lamp unit further comprises a protective 25 cage which is mounted to the base to enclose the light bulb.
Preferably the cage is generally of inverted cup-shape and is preferably of wire construction.
The coupling for the light bulb may be of 3:ayonet-type or screw-type. In use, preferably a light bulb of at least 40 watts 30 rating (or equivalent light output) is used, to provide an effective level of illumination for the workman.
An embodiment of the present invention will now be
described by way of example only and with reference to the accompanying drawings, in which: FIGURE 1 is a front view of a lamp unit in accordance with the present invention; 5 FIGURE 2 is a similar view of the lamp, shown disassembled and partly in section; FIGURE 3 is a top view of an extension cable unit into which the lamp unit of Figure 1 is plugged; FIGURE 4 is a side view of the extension cable unit shown 10 in Figure 3; and FIGURE 5 is an isometric view of the extension cable unit shown in Figures 3 and 4, with the protective cage of the lamp unit removed.
Referring to Figures 1 and 2 of the drawings, there is is shown a lamp unit L which comprises a circular base 10 having a standard set of three pins P projecting from its underside, arranged for plugging into a standard mains electrical socket.
The lamp unit further comprises, projectng from the upper side of the base 10, a socket 12 for a light bulb B. In the example 20 shown, the socket 12 and light bulb 12 form a bayonet-type coupling, but may instead form a screw coupling.
The base 10 of the lamp unit further comprises an upstanding, peripheral wall 14 formed at it top with a circumferential channel 16 to receive the bottom end of a 25 cylindrical, protective cage 18 to enclose the bulb B. The base 10 further includes an ON/OFF switch, the actuator of which is shown at 19 in Figure 1.
It will be appreciated that when the lamp unit is plugged into a mains socket and the switch of the lamp unit is itself 30 switched on, then the light bulb will be energised to provide illumination. In use, a light bulb B of at least 40 watts rating (or equivalent light output) would used, to give an effective level of illumination for the user to carry out his work.
Often a workman needs illumination at some location remote from a mains electrical socket and for this purpose may plug the lamp unit L into a socket of an extension cable unit F. as shown in Figures3 to 5. In the example shown, the extension cable unit 5 E is of the type which comprises a core around which the cable C is wound, using a winding handle 21. The extension cable unit includes 3 or4 socket outlets, one of which having the lamp unit pluggedinto it: in use, the workman will usually wish to connect power tools into the other sockets.

Claims (6)

Claim"
1) A lamp unit which comprises a base carrying a coupling for a light bulb, and a set of pins projecting from the underside of the base, for plugging the unit into a mains 5 electrical socket.
2) A lamp unit as claimed in claim 1, comprising an ON/OFF switch for switching said light bulb on or off when the unit is plugged into a live socket.
3) A lamp unit as claimed in claim 1 or 2, further 10 comprising a protective cage which is mounted to said base to enclose said light bulb.
4) A lamp unit as claimed in claim 3, in which said cage is generally of inverted cup-shape.
5) A lamp unit as claimed in claim 4, in which said cage 15 is of wire construction.
6) A lamp unit substantially as herein described with reference to the accompanying drawings.
GB0218960A 2002-08-15 2002-08-15 Connector of lamp unit Withdrawn GB2392015A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0218960A GB2392015A (en) 2002-08-15 2002-08-15 Connector of lamp unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0218960A GB2392015A (en) 2002-08-15 2002-08-15 Connector of lamp unit

Publications (2)

Publication Number Publication Date
GB0218960D0 GB0218960D0 (en) 2002-09-25
GB2392015A true GB2392015A (en) 2004-02-18

Family

ID=9942347

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0218960A Withdrawn GB2392015A (en) 2002-08-15 2002-08-15 Connector of lamp unit

Country Status (1)

Country Link
GB (1) GB2392015A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3668602A (en) * 1970-08-26 1972-06-06 Itt Portable safety lamp structure
GB1379201A (en) * 1971-11-26 1975-01-02 Coates Burnley Ltd J G Electric lamp adapter
EP0064453A1 (en) * 1981-04-29 1982-11-10 Daniel Conte Hand lamp for incandescent bulbs with a fixed protective cage and a removable socket
GB2166303A (en) * 1984-10-23 1986-04-30 Ranton & Co Ltd An adaptor for connecting electrical connectors to electrical accessory outlet connectors
US5495402A (en) * 1992-12-30 1996-02-27 Houssian; Vazgen Safety night light
US5624179A (en) * 1993-11-20 1997-04-29 Korte; Heinrich Lamp for fluorescent tubes
US5711674A (en) * 1996-03-15 1998-01-27 Chu; Shu-Hsun Lamp socket and plug assembly
DE19646456A1 (en) * 1996-11-11 1998-05-14 Reinhard Moeller Work-place light fitting for voltages higher than 100 volts

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3668602A (en) * 1970-08-26 1972-06-06 Itt Portable safety lamp structure
GB1379201A (en) * 1971-11-26 1975-01-02 Coates Burnley Ltd J G Electric lamp adapter
EP0064453A1 (en) * 1981-04-29 1982-11-10 Daniel Conte Hand lamp for incandescent bulbs with a fixed protective cage and a removable socket
GB2166303A (en) * 1984-10-23 1986-04-30 Ranton & Co Ltd An adaptor for connecting electrical connectors to electrical accessory outlet connectors
US5495402A (en) * 1992-12-30 1996-02-27 Houssian; Vazgen Safety night light
US5624179A (en) * 1993-11-20 1997-04-29 Korte; Heinrich Lamp for fluorescent tubes
US5711674A (en) * 1996-03-15 1998-01-27 Chu; Shu-Hsun Lamp socket and plug assembly
DE19646456A1 (en) * 1996-11-11 1998-05-14 Reinhard Moeller Work-place light fitting for voltages higher than 100 volts

Also Published As

Publication number Publication date
GB0218960D0 (en) 2002-09-25

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)