GB2334161A - Lamp dimmer - Google Patents

Lamp dimmer Download PDF

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Publication number
GB2334161A
GB2334161A GB9802752A GB9802752A GB2334161A GB 2334161 A GB2334161 A GB 2334161A GB 9802752 A GB9802752 A GB 9802752A GB 9802752 A GB9802752 A GB 9802752A GB 2334161 A GB2334161 A GB 2334161A
Authority
GB
United Kingdom
Prior art keywords
dimmer
cable
fully
switch
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.)
Withdrawn
Application number
GB9802752A
Other versions
GB9802752D0 (en
Inventor
Gregory Dean Hayes
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 GB9802752A priority Critical patent/GB2334161A/en
Publication of GB9802752D0 publication Critical patent/GB9802752D0/en
Publication of GB2334161A publication Critical patent/GB2334161A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/04—Controlling
    • H05B39/08—Controlling by shifting phase of trigger voltage applied to gas-filled controlling tubes also in controlled semiconductor devices
    • H05B39/083—Controlling by shifting phase of trigger voltage applied to gas-filled controlling tubes also in controlled semiconductor devices by the variation-rate of light intensity

Landscapes

  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

A dimmer, eg. for a bedside table lamp, is formed as a unit which is mounted in-line in the mains cable feeding the lamp, Fig.2. The dimmer circuitry is housed in a plastics container 3 having a protruding knob 1 for setting lamp brightness. There are no clicks or other noises when the knob 1 is rotated between the fully anti-clockwise OFF position and the fully clockwise full-brightness position.

Description

CABLE SWITCH This invention relates to a cable dimmer switch that is mounted inside a container and is used to vary the electrical power that passes through a cable. This could typically be used to vary the brightness of a table lamp.
Dimmer light switches are commonly used but are all of a similar type in that they all have to be mounted in an enclosure fitted to a wall. Switches that are installed to cables are not dimmer switches and make a clicking sound when switched either on or off.
An object of this invention is to provide a cable switch that allows a power supply to be gradually turned on and off.
This cable switch circuit is silent as some switches have a tendency to make a loud click when operated.
One embodiment of this invention provides (claim 1) a cable dimmer switch fitted to a container and wired to a dimmer circuit held within that container.
A specific embodiment of the invention will now be described by way of example with reference to the accompanying drawing in which: Figure 1 shows the cable switch from a raised side elevation.
Figure 2 shows the cable switch connected to a typical bedside light As shown in figure 1 the cable switch comprises of a plastic container 3 which houses a dimmer circuit of the type obtainable from the Maplin catalogue September 1997 to February 1998 order code FQ 1 or. The cable enters the hole 4 and is connected to the dimmer circuit inside the container it then exits the container through a second hole on the opposite side of hole 4. The cable entry and exit is more clearly shown in figure 2.
The operation of the dimmer control knob 1 is such that when turned to the fully clockwise position the power is off. Gradually as the knob is rotated clockwise the light illuminates and increases in intensity until the lamp reaches full brightness.
There are no clicks or noises when the cable switch is operated and turned from the fully anti-clockwise position to the fully clockwise position or vice versa.
The plastic body 3 has a lid 2 that can be removed in order to connect the power supply cable to the dimmer circuit.
This type of cable switch is of particular use when used as a bedside light, where a person may require a bright light to read by late at night but a dimmer light when getting up in the morning to avoiding waking a partner that is still asleep, for example.

Claims (1)

  1. CLAIMS 1) A self contained cable switch and variable dimmer.
    2) A cable switch as in claim 1 that is securely connected to a power cable.
    3) A cable switch as in claims 1 and 2 that is silent when switched from the fully off to the fully on position.
    5) A cable switch as claimed in any preceding claim which is of a plastic material.
    6) A self contained cable switch substantially as described herein with reference to the accompanying drawings.
GB9802752A 1998-02-10 1998-02-10 Lamp dimmer Withdrawn GB2334161A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9802752A GB2334161A (en) 1998-02-10 1998-02-10 Lamp dimmer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9802752A GB2334161A (en) 1998-02-10 1998-02-10 Lamp dimmer

Publications (2)

Publication Number Publication Date
GB9802752D0 GB9802752D0 (en) 1998-04-08
GB2334161A true GB2334161A (en) 1999-08-11

Family

ID=10826716

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9802752A Withdrawn GB2334161A (en) 1998-02-10 1998-02-10 Lamp dimmer

Country Status (1)

Country Link
GB (1) GB2334161A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2104308A (en) * 1981-08-07 1983-03-02 Down Street Electrics Limited Electrical apparatus
WO1987004890A1 (en) * 1983-10-31 1987-08-13 Beck Gregory M Lamp control
US4999544A (en) * 1989-05-01 1991-03-12 Cibor Michael K Tree hung ornamental dimmer
US5499930A (en) * 1994-04-28 1996-03-19 Lutron Electronics Co., Inc. In-line dimmer switch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2104308A (en) * 1981-08-07 1983-03-02 Down Street Electrics Limited Electrical apparatus
WO1987004890A1 (en) * 1983-10-31 1987-08-13 Beck Gregory M Lamp control
US4999544A (en) * 1989-05-01 1991-03-12 Cibor Michael K Tree hung ornamental dimmer
US5499930A (en) * 1994-04-28 1996-03-19 Lutron Electronics Co., Inc. In-line dimmer switch

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MAPLIN MPS Catalogue,September 1997/March 1998, page 565, item reference FQ10L *

Also Published As

Publication number Publication date
GB9802752D0 (en) 1998-04-08

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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)