Tungsten halogen lamp with light source capsule containment device

Claim 2

A double-enveloped tungsten-halogen lamp comprrising: (a) an outer envelope; (b) a light-source capsule; (c) a stem on which said light-source capsule is mounted within said outer envelope, said stem having a flare which is hermetically sealed to said outer envelope; (d) a containment mesh substantially surrounding said light-source capule for absorbing burst energy and restricting shards of said light-source capsule from shattering said outer envelope in the event said light-source capsule bursts, said containment mesh having the ability to absorb substantial energy upon deformation thereof by a cansule burst, said containment mesh having a sufficient number of stitches per inch to restrain those shards of said light-source capsule with mass large enough to cause a rupture of said outer envelope from passing through said mesh and impacting said outer envelope, said containment mesh being formed from light-reflecting metal wire and having a minimal effect on the efficacy of said lamp; and (e) mesh-mounting means for mounting said containment mesh about said light-source capsule and anchoring said mesh on said stem such that the electrical circuit of said lamp is operable.

Claim 3

A lamp as described in claim 1 wherein said light-source capsule is single-ended.

Claim 4

A lamp as described in claim 2 wherein said containment mesh is knitted.

Claim 5

A lamp as described in claim 1 wherein at least one anchoring pin is mounted on said stem and said containment mesh is mounted over said anchoring pin such that a portion of said anchoring pin is inserted through a stitch of said containment mesh.

Claim 6

A double-enveloped tungsten-halogen lamp comprising: (a) an outer envelope; (b) a light-source capsule; (c) a stem on which said light-source capsule is mounted within said outer envelope, said stem having a flare which is hermetically sealed to said outer envelope; (d) a containment mesh substantially surrounding said light-source capsule for absorbing burst energy and restricting shards of said light-source capsule from shattering said outer envelope in the event said light-source capsule bursts, said containment mesh having the ability to absorb substantial energy upon deformation therof by a capsule burst, said containment mesh having a sufficient number of stitches per inch to restrain those shards of said light-source capsule with mass large enough to cause a rupture of said outer envelope from passing through said mesh and impacting said outer envelope, said containment mesh being formed from light-reflecting metal wire and having a minimal effect on the efficacy of said lamp; and (e) mesh-mounting means for mounting said containment mesh about said light-source capsule, said mesh-mounting means including frictional forces exerted by said containment mesh itself.

Claim 7

A double-enveloped tungsten-halogen lamp comprising: (a) an outer envelope; (b) a light-source capsule; (c) a stem on which said light-source capsule is mounted within said outer envelope, said stem having a flare which is hermetically sealed to said outer envelope; (d) a containment mesh substantially surrounding said light-source capsule for absorbing burst energy and restricting shards of said light-source capsule from shattering said outer envelope in the event said light-source capsule bursts, said containment mesh having the ability to absorb substantial energy upon deformation therof by a capsule burst, said containment mesh having a sufficient number of stitches per inch to restrain those shards of said light-source capsule with mass large enough to cause a rupture of said outer envelope from passing through said mesh and impacting said outer envelope, said containment mesh being formed from light-reflecting metal wire and having a minimal effect on the efficacy of said lamp; and (e) mesh-mounting means for mounting said containment mesh about said light-source capsule, said mesh-mounting means including frictional forces exerted by said containment mesh itself.

Claim 8

A lamp as described in claim 5 wherein said light-source capsule is single-ended.

Claim 9

A lamp as decribed in claim 6 wherein said containment mesh is knitted.

Claim 10

A tungsten-halogen lamp comprising: (a) an outer envelope; (b) a single-ended light-source capsule having a top; (c) a stem on which said light-source capsule is mounted within said outer envelope, said stem having a flare which is hermetically sealed to said outer envelope; (d) a containment mesh substantially surrounding said light-source capsule for absorbing burst energy and restricting shards of said light-source capsule from shattering said outer envelope in the event said light-source capsule bursts, said containment mesh having the ability to absorb substantial energy upon deformation thereof by a capsule burst, said containment mesh having a sufficient number of stitches per inch to restrain those shards of said light-source capsule with mass large enough to cause a rupture of said outer envelope from passing through said mesh and impacting said outer envelope, said containment mesh being formed from light-reflecting metal wire and having a minimal effect on the efficacy of said lamp; (e) mesh-mounting means for mounting said containment mesh operatively with respect to said light-source capsule such that the electrical circuit of said lamp is operable; and (f) collision-absorbing means mounted within said outer envelope above said top of said light-source capsule.

Claim 11

A tungsten-halogen lamp comprising: (a) an outer envelope; (b) a single-ended light-source capsule having a top; (c) a stem on which said light-source capsule is mounted within said outer envelope, said stem having a flare which is hermetically sealed to said outer envelope; (d) a containment mesh substantially surrounding said light-source capsule for absorbing burst energy and restricting shards of said light-source capsule from shattering said outer envelope in the event said light-source capsule bursts, said containment mesh having the ability to absorb substantial energy upon deformation thereof by a capsule burst, said containment mesh having a sufficient number of stitches per inch to restrain those shards of said light-source capsule with mass large enough to cause a rupture of said outer envelope from passing through said mesh and impacting said outer envelope, said containment mesh being formed from light-reflecting metal wire and having a minimal effect on the efficacy of said lamp; (e) mesh-mounting means for mounting said containment mesh operatively with respect to said light-source capsule such that the electrical circuit of said lamp is operable; and (f) collision-absorbing means mounted within said outer envelope above said top of said light-source capsule.

Claim 12

A lamp as described in claim 8 wherein said collision-absorbing means is a slightly crumpled portion of said containment mesh.

Claim 13

A lamp as described in claim 9 wherein said mesh-mounting means includes means for anchoring said containment mesh on said stem.

Claim 14

A lamp as described in claim 10 wherein said containment mesh is knitted.

Claim 15

A lamp as described in claim 8 wherein at least one anchoring pin is mounted on said stem and said containment mesh is mounted over said anchoring pin such that a portion of said anchoring pin is inserted through a stitch of said containment mesh.