Light bulb cooling jacket and heat dissipation system

• US 5,504,666 A
• Filed: 07/29/1994
• Issued: 04/02/1996
• Est. Priority Date: 07/29/1994
• Status: Expired due to Fees

• Current Assignee: 475231 B.C. Ltd.
• Original Assignee: 475231 B.C. Ltd.
• Inventors: Carmichael, Peter
• Primary Examiner(s): Lazarus, Ira S.
• Assistant Examiner(s): LEE, Y MY QUACH
• Application Number:
  US08/282,739
• Time in Patent Office: 613 Days
• Field of Search: 362/96, 362/218, 362/267, 362/294, 362/318, 362/373, 313/12, 313/17, 313/22, 313/24, 313/35, 313/36
• US Class Current: 362/294
• CPC Class Codes: F21V 29/56 using liquid coolants F21V29/51 takes precedence
• CPC Class Codes: F21V 29/58 characterised by the coolants
• CPC Class Codes: F21V 29/83 the elements having apertures, ducts or channels, e.g. heat radiation holes
• CPC Class Codes: H01J 61/52 Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space heating or cooling arrangements to promote ionisation for starting H01J61/54

Abstract

A light bulb cooling jacket is adapted to confine a light bulb in a space through which cooling liquid, such as water, may be circulated. The light bulb cooling jacket includes an shell having a rim, the rim defining an opening in the shell. A stopper fits in the opening in the shell and seals against the rim of the shell. The stopper has an aperture in it. The aperture is adapted to receive a portion of a light bulb, which is held and sealed in place in the aperture. The means employed to hold the bulb in place is adapted to engage a generally cylindrical portion of the light bulb, such as the neck of a standard 1000 W bulb. An important characteristic of the present invention that follows from this construction is that the light bulb cooling jacket may be used with a variety of standard high intensity light bulbs. Ports are provided in the stopper for introducing and withdrawing cooling liquid from the space enclosed by the shell and the stopper.

Claims

1. A light bulb cooling jacket comprising:

a shell having a rim defining an opening;

a stopper sealably engaging said rim, said stopper defining an aperture adapted to receive a portion of a light bulb;

a first sealing member adjacent to a portion of said stopper;

a first deformable packing disposed between said first sealing member and said adjacent portion of said stopper;

a second sealing member movably attached to said stopper and adjacent to said first sealing member; and

,

a second deformable packing disposed between said first sealing member and said second sealing member, said second sealing member being movable to compress said second deformable packing against said first sealing member to cause said second deformable packing to protrude into said aperture to sealably engage a stem portion of said light bulb; and

,

a port in said stopper to allow cooling liquid to circulate through said jacket.

2. The light bulb cooling jacket of claim 1, wherein:

said first sealing member is annular and rigid;

said second sealing member is annular and rigid;

said second sealing member is movably and demountably attached to said stopper; and

,

said first and second deformable packings are O-rings.

3. The light bulb cooling jacket of claim 2, wherein:

said first sealing member defines a circumferential channel adapted to seat said first O-ring, said circumferential channel being adjacent to a portion of said stopper;

said first O-ring is sealably seated in said circumferential channel and sealably abuts said adjacent portion of said stopper;

said first and second sealing members define a circumferential recess adapted to seat said second O-ring, said circumferential recess being adjacent to said aperture in said stopper;

said second O-ring is sealably seated in said second circumferential recess;

said second sealing member is movable to compress said second O-ring in said circumferential recess, such that compression of said second O-ring between said first and second sealing members in said circumferential recess causes said second O-ring to protrude into said aperture.

4. The light bulb cooling jacket of claim 3, wherein said shell further comprises an openable air bleed valve mounted to an aperture in said shell.

5. The light bulb cooling jacket of claim 4, wherein said port further comprises an outlet port and an adjustable inlet port.

6. The light bulb cooling jacket of claim 5, wherein said shell is adapted to surround a said light bulb which is 1000 watt.

7. The light bulb cooling jacket of claim 6, wherein said shell is generally transparent.

8. A light bulb heat dissipation system comprising:

(a) A light bulb cooling jacket comprising;

i) a shell having a rim defining an opening;

ii) a stopper sealably engaging said rim, said stopper defining an aperture adapted to receive a portion of a light bulb;

iii) a first sealing member adjacent to a portion of said stopper;

iv) a first deformable packing disposed between said first sealing member and said adjacent portion of said stopper;

v) a second sealing member movably attached to said stopper and adjacent to said first sealing member;

vi) a second deformable packing disposed between said first sealing member and said second sealing member, said second sealing member being movable to compress said second deformable packing against said first sealing member to cause said second deformable packing to protrude into said aperture to sealably engage a stem portion of said light bulb; and

,

vii) a port in said stopper to allow cooling liquid to circulate through said jacket;

(b) cooling liquid;

(c) a heat dissipator for dissipating heat from said cooling liquid;

(d) a pump for circulating cooling liquid; and

,

(e) a conduit interconnecting said light bulb cooling jacket, said heat dissipator and said pump to conduct said cooling liquid to and from said light bulb cooling jacket and said heat dissipator.

9. The light bulb heat dissipation system of claim 8 wherein said cooling liquid is water.

10. The light bulb heat dissipation system of claim 8, wherein said cooling liquid is an aqueous solution comprising a solute that absorbs light.

11. A light bulb heat dissipation system comprising:

(a) A light bulb cooling jacket comprising;

i) a shell having a rim defining an opening;

ii) a stopper sealably engaging said rim, said stopper defining an aperture adapted to receive a portion of a light bulb;

iii) a first annular and rigid sealing member, adjacent to a portion of said stopper defining a circumferential channel adjacent to said portion of said stopper;

iv) a first deformable O-ring packing sealably seated in said circumferential channel and sealably abutting said portion of said stopper;

v) a second annular and rigid sealing member movably and demountably attached to said stopper and adjacent to said first annular and rigid sealing member, said first and second annular and rigid sealing members defining between them a circumferential recess adjacent to said aperture in said stopper;

vi) a second deformable o-ring packing sealably seated in said circumferential recess, said second sealing member being movable to compress said second deformable O-ring packing in said circumferential recess against said first sealing member to cause said second deformable O-ring packing to protrude into said aperture to sealably engage a stem portion of said light bulb; and

,

vii) a port in said stopper to allow cooling liquid to circulate through said jacket;

(b) cooling liquid;

(c) a heat dissipator for dissipating heat from said cooling liquid;

(d) a pump for circulating cooling liquid; and

,

(e) a conduit interconnecting said light bulb cooling jacket, said heat dissipator and said pump, to conduct cooling liquid to and from said light bulb cooling jacket and said heat dissipator.

12. The light bulb heat dissipation system of claim 11 wherein said cooling liquid is water.

13. The light bulb heat dissipation system of claim 11, wherein said cooling liquid is an aqueous solution comprising a solute that absorbs light.