GB2494995A - Light bulb shade - Google Patents

Light bulb shade Download PDF

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Publication number
GB2494995A
GB2494995A GB1216837.3A GB201216837A GB2494995A GB 2494995 A GB2494995 A GB 2494995A GB 201216837 A GB201216837 A GB 201216837A GB 2494995 A GB2494995 A GB 2494995A
Authority
GB
United Kingdom
Prior art keywords
text
light bulb
main part
cover
face
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.)
Granted
Application number
GB1216837.3A
Other versions
GB2494995B (en
GB201216837D0 (en
Inventor
Gary Daly
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.)
SPLASHBLADE PRODUCTS Ltd
Original Assignee
SPLASHBLADE PRODUCTS Ltd
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 SPLASHBLADE PRODUCTS Ltd filed Critical SPLASHBLADE PRODUCTS Ltd
Publication of GB201216837D0 publication Critical patent/GB201216837D0/en
Publication of GB2494995A publication Critical patent/GB2494995A/en
Application granted granted Critical
Publication of GB2494995B publication Critical patent/GB2494995B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
    • 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
    • F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
    • F21V1/14—Covers for frames; Frameless shades
    • F21V1/146—Frameless shades
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/506—Cooling arrangements characterised by the adaptation for cooling of specific components of globes, bowls or cover glasses

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

A cover 10 for a light bulb comprises a body 12 having a main part 14 defining a space to receive the light bulb. The main part 14 has first and second opposite ends 16, 18 and an end face 20 at the first end 16 of the main part 14. The end face 20 extends across the first end of the main part and defines an aperture 22 to allow the light bulb to be connected to a supply of electricity. Cooling slots 28 are provided.

Description

Cover for a LiQht Bulb This invention relates to covers for light bulbs. More particularly, but not exclusively, this invention relates to covers for fluorescent bulbs. The invention also relates to assemblies comprising covers and light bulbs.
Fluorescent light bulbs, also known as low energy light bulbs, are now becoming more popular, and are replacing incandescent bulbs in the shops and homes.
However, the light emitted by fluorescent light bulbs can be stark.
According to one aspect of this invention, there is provided a cover for a light bulb, the cover comprising a body having a main part defining a space to receive the light bulb, the main pad having first and second opposite ends and an end face on the first end of the main part, the end face extending across the first end of the main part and defining an aperture to allow the light bulb to be connected to a supply of electricity.
The second end of the main pad may define an insertion opening to allow the light bulb to be inserted into the space in the main part.
The aperture may be configured for a portion of the light bulb to extend there through. The light bulb has an illuminating arrangement and an electrical connecting arrangement on the illuminating arrangement. The aforesaid portion of the light bulb may comprise the electrical connecting arrangement.
If desired, the light bulb can be held by the main part so that the connecting arrangement extends through the aperture. Alternatively, the end face can co-operate with an electrical connecting lamp holder, by means of which the light bulb can be connected to the supply of electricity.
The main part of the body may be tubular and may be substantially cylindrical. The main part may engage the light bulb when the light bulb is disposed therein. In one embodiment, the main pad is a tight fit around the light bulb. The main part may be configured to engage the illuminating arrangement when the light bulb is received :1 therein. The main part may be configured to be a tight fit around the illuminating arrangement.
The end face may be integral with the main part. The aperture may be defined substantially centrally in the end face. The end face may have at least one heat release formation adjacent the aperture. The heat release formation may be provided to allow heat to escape from the light bulb.
The end face may define two heat release formations, which may be arranged substantially opposite each other. The aperture may be defined in the end face between the heat release formations. The, or each, heat release formation may comprise a hole, such as a slot defined in the end face. The aperture may be defined substantially centrally in the end face. The holes may be defined opposite each other with the aperture therebetween.
The cover may be formed of a polymeric material. The cover may be formed of a resilient material. The material may be a high consistency rubber material. The cover may be formed of a material comprising silicone, such as an HCR silicone. A suitable such material is marketed by the company Wacker Chemie AG under the trade mark ELASTOSIL. The cover may be a one piece moulding, for example formed by injection moulding.
The cover is particularly suitable for use with light bulbs in the form of fluorescent light bulbs.
According to another aspect of this invention, there is provided an assembly comprising a cover and a light bulb, wherein the cover comprises a body having a main part defining a space to receive the light bulb, the main part having first and second opposite ends and an end face at the first end of the main part, the end face extending across the first end of the main part and defining an aperture to allow the light bulb to be connected to a supply of electricity, and wherein the light bulb has an illuminating arrangement and an electrical connecting arrangement on the illuminating arrangement, the electrical connecting arrangement extending through the aperture defined in the end face of the cover.
I
The light bulb may be a fluorescent bulb.
The second end of the main part may define an insertion opening to allow the light bulb to be inserted into the space in the main part.
The illuminating arrangement may be held by the main part so that the connecting arrangement extends through the aperture.
The main part of the body may be tubular and may be substantially cylindrical.
The main part may engage the light bulb, and may be a tight fit around the light bulb.
The main part may engage the illuminating arrangement.
The end face may be integral with the main part, and the aperture may be defined substantially centrally in the end face. The end face may have at least one heat release formation adjacent the aperture. The heat release formation may be provided to allow heat to escape from the light bulb.
The end face may define two heat release formations arranged substantially opposite each other, and wherein the aperture is defined in the end face between the heat release formations. The, or each, heat release formation may comprise a slot defined in the end face.
The cover may be wholly formed of a plastics material. The cover may be wholly formed of silicone. The cover may be formed as a one piece moulding. The cover may be formed by injection moulding.
According to another aspect of this invention, there is provided a cover and light bulb arrangement, comprising a cover as described above, and a light bulb held within the cover, the light bulb having a connecting portion extending through the aperture defined in the end face of the cover.
The light bulb may be a fluorescent bulb.
An embodiment of the invention will now be described by way of example only, with reference to the accompanying drawings, in which: Figure 1 is a perspective view from one end of a cover for a light bulb; Figure 2 is a perspective view from the opposite end of the cover shown in Figure 1; Figure 3 shows the cover and a light bulb; Figure 4 shows a light bulb held within the cover; and Figure 5 shows the cover mounted on a lamp holder.
Figures 1 and 2 show a cover 10 for a light bulb 100 (see Figures 3 to 5 for the light bulb 100). The cover 10 comprises a body 12 having a main part 14 with first and second opposite ends 16, 18. The body 12 also includes an end face 20 at the first end 16 of the main part. The end face 20 is formed integrally with the main part 14.
The body 12 is of a one piece construction and the end face 20 defines an aperture 22 centrally therein. The aperture 22 allows the light bulb 100 to be connected to a supply of electricity. In the embodiment shown, the aperture 22 is substantially circular in shape, and thereby corresponds in shape to the end profile of a connecting portion 104 of a light bulb 100, as described below.
The main part 14 defines an interior space 24 in which the light bulb 100 can be received and held. The second end 18 of the main part 14 defines an insertion opening 26 to allow the light bulb 100 to be inserted into the space 24 in the main part 14.
The end face 20 further defines heat release formations in the form of two heat release slots 28 adjacent the aperture 22. The heat release slots 28 allow heat from the light bulb to escape.
The heat release slots 28 are defined in the end face 20 opposite each other. The aperture 22 is defined in the end face 20 between the heat release slots 28. The heat release slots 28 are curved and, in the embodiment shown in the drawings are concentric with the aperture 22.
The main part 14 is in the form of a tube. In the embodiment shown, the main part 14 is cylindrical in shape.
Figure 3 shows an assembly comprising the light bulb 100 and the cover 10. The light bulb 100 is of the fluorescent type having an illuminating arrangement 102 for providing illumination, and a connecting arrangement 104 for connecting the light bulb 100 to a supply of electricity.
The illuminating arrangement 102 comprises a ballast part 106 housing electronics to operate the bulb, and a tube part 108 comprising gas filled tubes to emit light. The connecting arrangement 104 can comprise either an Edison screw or a bayonet fitting.
Figure 4 shows the light bulb 100 held by the cover 10. The light bulb 100 can be received in the space 24 in the main part 14 of the body 12. The main part 14 is configured so that it engages around the ballast part 106 of the light bulb 100.
As can be seen from Figure 4, one way of using the cover 10 is to arrange the light bulb 100 within the main part 12 so that the connecting arrangement 104 extends through the aperture 22 in the end face 20. The connecting arrangement 104 can then be connected to a suitable lamp holder to allow the light bulb 100 to be connected to the mains supply of electricity.
In an alternative arrangement, shown in Figure 5, the cover 10 can be connected to a lamp holder 200, which can then receive the light bulb 100 therein. The lamp holder 200 is a standard lamp holder known in the art.
A brief description of the lamp holder is as follows. The lamp holder 200 comprises a securing part 202 to which an electrical cable 204 can be secured. The securing part 202 has electrical and mechanical connecting formations (not visible) to cooperate with the connecting portion 104 (not visible in Figure 5) of the light bulb 100, thereby connecting the light bulb 100 mechanically and electrically to the lamp holder 200.
The securing part also includes an externally threaded mounting member (not visible) which houses the connecting formations and can receive the connecting part 104 of the light bulb 100.
The cover 10 is attached to the lamp holder 200 by receiving the mounting member through the aperture 22. An internally threaded attachment skirt 206 is threadably received on the mounting member to secure the cover 10 to the lamp holder 200. In this arrangement, the connecting portion 104 of the bulb 100 does not extend through the aperture 22 in the end face 24, but the ballast part 106 is engaged by the main part 14 of the body 12.
The cover 10 can be formed as a unitary moulding from a fire resistant or retardant material, such as a resilient polymeric material, for example silicone, suitably an HCR (high consistency rubber) silicone. The cover 10 can be formed by injection moulding. The cover 10 can be of any desirable colour so that suitable ambience is provided in the room.
Various modifications can be made without departing from the scope of the invention, for example, the main part 14 of the body 12 and/or the aperture 22 can be of any suitable shape, for example square.

Claims (1)

  1. <claim-text>Claims 1. A cover for a light bulb, the cover comprising a body having a main part defining a space to receive the light bulb, the main part having first and second opposite ends and an end face at the first end of the main part, the end face extending across the first end of the main part and defining an aperture to allow the light bulb to be connected to a supply of electricity.</claim-text> <claim-text>2. A cover according to claim 1, wherein the aperture is configured for a portion of the light bulb to extend therethrough thereby allowing the aforesaid connection to the supply of electricity.</claim-text> <claim-text>3. A cover according to claim 1 or 2, wherein the second end of the main part defines an insertion opening to allow the light bulb to be inserted into the space in the main part.</claim-text> <claim-text>4. A cover according to claim 1, 2 or 3, wherein the light bulb has an illuminating arrangement and an electrical connecting arrangement on the Ilumkiating arrangement, and wherein the main part is configured to hold the illuminating arrangement so that the connecting arrangement extends through the aperture when the light bulb is disposed in the cover.</claim-text> <claim-text>5. A cover according to any preceding claim, wherein the main part of the body is tubular and substantially cylindrical.</claim-text> <claim-text>6. A cover according to any preceding claim, wherein the main part is configured to engage the light bulb when the light bulb is disposed therein.</claim-text> <claim-text>7. A cover according to claim 6, wherein the main part is configured to be a tight fit around the light bulb.</claim-text> <claim-text>8. A cover according to any preceding claim, wherein the main part is configured to engage the illuminating arrangement when the light bulb is received therein.</claim-text> <claim-text>9. A cover according to any preceding claim, wherein the end face is integral with the main part, and the aperture is defined substantially centrally in the end face.</claim-text> <claim-text>10. A cover according to any preceding claim, wherein the end face has at least one heat release formation adjacent the aperture, the heat release formation being provided to allow heat to escape from the light bulb.</claim-text> <claim-text>11. A cover according to claim 10, wherein the end face defines two heat release formations arranged substantially opposite each other, and wherein the aperture is defined in the end face between the heat release formations.</claim-text> <claim-text>12. A cover according to claim 10 or 11, wherein the, or each, heat release formation comprises a slot defined in the end face.</claim-text> <claim-text>13. A cover according to any preceding claim substantially wholly formed of a polymeric material.</claim-text> <claim-text>14. A cover according to any preceding claim substantially wholly formed of a resilient material.</claim-text> <claim-text>15. A cover according to any preceding claim substantially wholly formed of an HCR silicone material.</claim-text> <claim-text>16. A cover according to any preceding claim formed as a one piece moulding.</claim-text> <claim-text>17. A cover according to claim 16 formed by injection moulding.</claim-text> <claim-text>18. An assembly comprising a cover and a light bulb, wherein the cover comprises a body having a main part defining a space to receive the light bulb, the main part having first and second opposite ends and an end face at the first end of the main part, the end face extending across the first end of the main part and defining an aperture to allow the light bulb to be connected to a supply of electricity, and wherein the light bulb has an illuminating arrangement and an electrical connecting arrangement on the illuminating arrangement, the electrical connecting arrangement extending through the aperture defined in the end face of the cover.</claim-text> <claim-text>19. An assembly according to claim 18, wherein the light bulb is a fluorescent bulb.</claim-text> <claim-text>20. An assembly according to claim 18 or 19, wherein the second end of the main part defines an insertion opening to allow the light bulb to be inserted into the space in the main part.</claim-text> <claim-text>21. An assembly according to any of claims 18, 19 or 20, wherein the illuminating arrangement is held by the main part so that the connecting arrangement extends through the aperture.</claim-text> <claim-text>22. An assembly according to any of claims 18 to 21, wherein the main part of the body is tubular and substantially cylindrical.</claim-text> <claim-text>23. An assembly according to any of claims 18 to 22, wherein the main part engages the light bulb.</claim-text> <claim-text>24. An assembly according to claim 23, wherein the main part is a tight fit around the light bulb.</claim-text> <claim-text>25. An assembly according to any of claims 18 to 24, wherein the main part engages the illuminating arrangement.</claim-text> <claim-text>26. An assembly according to any of claims 18 to 25, wherein the end face is integral with the main part, and the aperture is defined substantially centrally in the end face.</claim-text> <claim-text>27. An assembly according to any of claims 18 to 26, wherein the end face has at least one heat release formation adjacent the aperture, the heat release formation being provided to allow heat to escape from the light bulb.</claim-text> <claim-text>28. An assembly according to claim 27, wherein the end face defines two heat release formations arranged substantially opposite each other, and wherein the aperture is defined in the end face between the heat release formations.</claim-text> <claim-text>29. An assembly according to claim 27 or 28, wherein the, or each, heat release formation comprises a slot defined in the end face.</claim-text> <claim-text>30. An assembly according to any of claims 18 to 29, wherein the cover is substantially wholly formed of a polymeric material.</claim-text> <claim-text>31. A cover according to any of claims 18 to 30 substantially wholly formed of a resilient material.</claim-text> <claim-text>32. A cover according to any of claims 18 to 31 substantially wholly formed of an HGR silicone material.</claim-text> <claim-text>33. An assembly according to any of claims 18 to 32, wherein the cover is formed as a one piece moulding.</claim-text> <claim-text>34. An assembly according to claim 33, wherein the cover is formed by injection moulding.</claim-text> <claim-text>35. A cover for a light bulb substantially as herein described with reference to the accompanying drawings.</claim-text> <claim-text>36. An assembly comprising a cover and a light bulb substantially as herein described with reference to Figures 3 to 5 of the accompanying drawings.</claim-text>
GB1216837.3A 2011-09-23 2012-09-20 Cover for a light bulb Expired - Fee Related GB2494995B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1116455.5A GB201116455D0 (en) 2011-09-23 2011-09-23 Cover for a light bulb

Publications (3)

Publication Number Publication Date
GB201216837D0 GB201216837D0 (en) 2012-11-07
GB2494995A true GB2494995A (en) 2013-03-27
GB2494995B GB2494995B (en) 2014-03-19

Family

ID=44937745

Family Applications (2)

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GBGB1116455.5A Ceased GB201116455D0 (en) 2011-09-23 2011-09-23 Cover for a light bulb
GB1216837.3A Expired - Fee Related GB2494995B (en) 2011-09-23 2012-09-20 Cover for a light bulb

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB1116455.5A Ceased GB201116455D0 (en) 2011-09-23 2011-09-23 Cover for a light bulb

Country Status (2)

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GB (2) GB201116455D0 (en)
WO (1) WO2013041868A1 (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH579744A5 (en) * 1974-07-29 1976-09-15 I D E E Ind Design Engineering Locking device for corrugated lamp shade - has locknut which screws onto bulb holder to force corrugated adaptor against underside of shade
GB2035532A (en) * 1978-10-24 1980-06-18 Jacobsen A S J Electric desk or work lamp constructions
DE2903933A1 (en) * 1979-02-02 1980-08-07 Ernest Dr Heimo Open-ended horizontal cylinder lamp shade - has lamp holder inside, plugging into socket outside, using insulated pins with locking action
US4428036A (en) * 1982-04-14 1984-01-24 Letcher Philip W Light fittings
FR2777977A1 (en) * 1998-04-28 1999-10-29 Jean Paul Lacroix Free-standing lamp, carrying shade on luminous column
US6530675B1 (en) * 2000-04-27 2003-03-11 Kurt B. Van Etten Exterior lighting systems
US7373744B1 (en) * 2004-06-15 2008-05-20 Wagner Jon K Lampshade
EP2333711A2 (en) * 2009-12-08 2011-06-15 Brian Acworth Art display system and method
GB2481084A (en) * 2010-06-07 2011-12-14 Brian Acworth Art display lamp

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3253137A (en) * 1964-01-23 1966-05-24 Gen Plastics Corp Garland light
GB2228789B (en) * 1989-03-02 1992-08-19 Ag Patents Ltd Transluscent sleeve for fluorescent lamp
US6502962B1 (en) * 2000-10-23 2003-01-07 Fire Products Company Cover assembly for a light
GB2395546A (en) * 2002-11-19 2004-05-26 Yuan-Shun Hsu Candle lamp with shade

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH579744A5 (en) * 1974-07-29 1976-09-15 I D E E Ind Design Engineering Locking device for corrugated lamp shade - has locknut which screws onto bulb holder to force corrugated adaptor against underside of shade
GB2035532A (en) * 1978-10-24 1980-06-18 Jacobsen A S J Electric desk or work lamp constructions
DE2903933A1 (en) * 1979-02-02 1980-08-07 Ernest Dr Heimo Open-ended horizontal cylinder lamp shade - has lamp holder inside, plugging into socket outside, using insulated pins with locking action
US4428036A (en) * 1982-04-14 1984-01-24 Letcher Philip W Light fittings
FR2777977A1 (en) * 1998-04-28 1999-10-29 Jean Paul Lacroix Free-standing lamp, carrying shade on luminous column
US6530675B1 (en) * 2000-04-27 2003-03-11 Kurt B. Van Etten Exterior lighting systems
US7373744B1 (en) * 2004-06-15 2008-05-20 Wagner Jon K Lampshade
EP2333711A2 (en) * 2009-12-08 2011-06-15 Brian Acworth Art display system and method
GB2481084A (en) * 2010-06-07 2011-12-14 Brian Acworth Art display lamp

Also Published As

Publication number Publication date
WO2013041868A1 (en) 2013-03-28
GB201116455D0 (en) 2011-11-02
GB2494995B (en) 2014-03-19
GB201216837D0 (en) 2012-11-07

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Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20160920