Getter pumps

Claim 2

A getter pump comprising a heater and a metallic strip having a particulate non-vaporable getter metal embedded in its surface, said strip being coaxially disposed around said heater.

Claim 3

A getter pump comprising a circular pleated strip of metal having a particulate non-vaporable getter metal embedded in its surface and a heater coaxially disposed within said circular strip.

Claim 4

A getter pump comprising a circular pleated strip of metal having a particulate non-vaporable getter metal embedded in its surface and a heater coaxially disposed within said circular strip.

Claim 5

A getter pump of claim 1 comprising: a. A cylindrical housing having therein a plurality of gas passages. b. At least one resistance heater axially positioned in said housing. c. A circular pleated strip of metal having a non-vaporable getter material attached to at least one of its surface, said circular pleated strip surrounding said heater.

Claim 6

A getter pump comprising: a. a pleated metallic strip having a particulate non-vaporable getter metal on at least one surface of the strip, said pleated strip being in the form of an annular ring having a plurality of generally radially extending planar portions wherein the outer extremities of adjacent planar portions are attached to each another and wherein the inner extremities of alternate adjacent planar portions are attached to each other. b. a heater coaxially disposed within said ring.

Claim 7

A getter pump comprising: a. a pleated metallic strip having a particulate non-vaporable getter metal on at least one surface of the strip, said pleated strip being in the form of an annular ring having a plurality of generally radially extending planar portions wherein the outer extremities of adjacent planar portions are attached to each another and wherein the inner extremities of alternate adjacent planar portions are attached to each other. b. a heater coaxially disposed within said ring.

Claim 8

Apparatus for use in a getter pump comprising: a. a support b. a pleated metallic strip carried by said support, said strip having a particulate non-vaporable getter metal on at least one surface of the strip, said getter metal terminating short of the edge, leaving a portion of the strip free of getter metal, said pleated strip being in the form of an annular ring having a plurality of generally radially extending planar portions wherein the outer extremities of adjacent planar portions are attached to each another via that portion of the strip free of getter metal and wherein the inner extremities of alternate adjacent planar portions are attached to each other via that portion of the strip free of getter metal. b. a heater carried by said support, said heater being coaxially disposed within said ring.

Claim 9

Apparatus for use in a getter pump comprising: a. a support b. a pleated metallic strip carried by said support, said strip having a particulate non-vaporable getter metal on at least one surface of the strip, said getter metal terminating short of the edge, leaving a portion of the strip free of getter metal, said pleated strip being in the form of an annular ring having a plurality of generally radially extending planar portions wherein the outer extremities of adjacent planar portions are attached to each another via that portion of the strip free of getter metal and wherein the inner extremities of alternate adjacent planar portions are attached to each other via that portion of the strip free of getter metal. b. a heater carried by said support, said heater being coaxially disposed within said ring.

Claim 10

A pleated metallic strip for use in a getter pumP having a particulate non-vaporable getter metal on at least one surface thereof, said getter metal terminating short of the edge leaving one portion of the strip free of getter metal, said pleated strip being in the form of an annular ring having a plurality of generally radially extending planar portions wherein the outer extremities of adjacent planar portions are attached to each another via that portion of the strip free of getter metal and wherein the inner extremities of alternate adjacent planar portions are attached to each other via that portion of the strip free of getter metal.

Claim 11

A pleated metallic strip for use in a getter pumP having a particulate non-vaporable getter metal on at least one surface thereof, said getter metal terminating short of the edge leaving one portion of the strip free of getter metal, said pleated strip being in the form of an annular ring having a plurality of generally radially extending planar portions wherein the outer extremities of adjacent planar portions are attached to each another via that portion of the strip free of getter metal and wherein the inner extremities of alternate adjacent planar portions are attached to each other via that portion of the strip free of getter metal.

Claim 12

The getter pump of claim 1 wherein said heater is a wire of high electrical resistance.

Claim 13

The getter pump of claim 1 wherein said heater is a helically wound ceramic insulated wire of high electrical resistance.

Claim 14

The getter pump of claim 8 wherein the wire is tungsten.

Claim 15

The getter pump of claim 1 wherein the non-vaporable getter metal is harder than the strip and is partially embedded therein.

Claim 16

The getter pump of claim 10 wherein said getter metal is a Zr-Al alloy.

Claim 17

The getter pump of claim 10 wherein said getter metal is an alloy of 1 to 40% Al balance Zr.

Claim 18

A getter pump comprising a heater and a stationary strip of a first metal; particles of a non-vaporable getter metal embedded in the strip; wherein the getter metal is harder than the strip, said strip being axially disposed around the heater.

Claim 19

A getter pump comprising a heater and a stationary strip of a first metal; particles of a non-vaporable getter metal embedded in the strip; wherein the getter metal is harder than the strip, said strip being axially disposed around the heater.

Claim 20

A getter pump comprising a heater and a metallic strip having a particulate non-vaporable getter metal embedded in its surface, said strip being folded along lines which are perpendicular to its length, said strip being formed into a ring the axis of which is parallel to the lines along which the strip is folded, said ring being coaxially disposed around said heater.

Claim 21

A getter pump comprising a heater and a metallic strip having a particulate non-vaporable getter metal embedded in its surface, said strip being folded along lines which are perpendicular to its length, said strip being formed into a ring the axis of which is parallel to the lines along which the strip is folded, said ring being coaxially disposed around said heater.