US3662522A — Getter pump cartridge

Claim 1

Independent Claim 73 words

A cartridge for a getter pump having at least one cartridge element comprising a circularly formed pleated strip of segments comprising a substrate carrying a non-evaporable getter metal, each segment being joined to the next adjacent segments wherein the angle between adjacent outwardly opening segments is maintained at 1* to 15* by at least one elevation attached to one of the segments such that the elevation lies between the adjacent outwardly opening segments.

Claim 2

Dependent Claim 73 words

A cartridge for a getter pump having at least one cartridge element comprising a circularly formed pleated strip of segments comprising a substrate carrying a non-evaporable getter metal, each segment being joined to the next adjacent segments wherein the angle between adjacent outwardly opening segments is maintained at 1* to 15* by at least one elevation attached to one of the segments such that the elevation lies between the adjacent outwardly opening segments.

Claim 3

Dependent Claim 22 words

The cartridge of claim 1 wherein the elevations are placed in a getter metal free margin along the edges of the strip.

Claim 4

Dependent Claim 71 words

a getter metal free margin adjacent to the side of the segment which is parallel to the running length thereof; B. foldable bridging attachments attached to the getter metal free margin of each segment and foldably connecting it to the two next adjacent segments, each attachment having a line of weakness about which folding most easily occurs; C. two elevations on each of the odd numbered segments, each of the elevations:

Claim 5

Dependent Claim 71 words

a getter metal free margin adjacent to the side of the segment which is parallel to the running length thereof; B. foldable bridging attachments attached to the getter metal free margin of each segment and foldably connecting it to the two next adjacent segments, each attachment having a line of weakness about which folding most easily occurs; C. two elevations on each of the odd numbered segments, each of the elevations:

Claim 6

Dependent Claim 7 words

projecting the same direction from the substrate,

Claim 7

Dependent Claim 7 words

projecting the same direction from the substrate,

Claim 8

Dependent Claim 6 words

having equal heights above the substrate,

Claim 9

Dependent Claim 6 words

having equal heights above the substrate,

Claim 10

Dependent Claim 17 words

The cartridge of claim 1 wherein the elevations are integrally formed from the metal of the substrate.

Claim 11

Dependent Claim 83 words

A cartridge for a getter pump having at least one cartridge element comprising a circularly formed pleated strip of segments comprising a metallic substrate the central portion of which is coated with a non-evaporable getter metal leaving a getter metal free margin, each segment being joined to the next adjacent segments by folded bridging attachments wherein the angle between adjacent outwardly opening segments is maintained at 2* to 10* by two elevations, one each in the getter metal free margins of alternate segments.

Claim 12

Dependent Claim 83 words

A cartridge for a getter pump having at least one cartridge element comprising a circularly formed pleated strip of segments comprising a metallic substrate the central portion of which is coated with a non-evaporable getter metal leaving a getter metal free margin, each segment being joined to the next adjacent segments by folded bridging attachments wherein the angle between adjacent outwardly opening segments is maintained at 2* to 10* by two elevations, one each in the getter metal free margins of alternate segments.

Claim 13

Dependent Claim 58 words

being the same distance from the next adjacent line of weakness, with the proviso that the height of an elevation above the substrate divided by the distance from the elevation to the next adjacent line of weakness is equal to the tangent of an angle between 2* to 10*; D. the even numbered segments being free of elevations.

Claim 14

Dependent Claim 58 words

being the same distance from the next adjacent line of weakness, with the proviso that the height of an elevation above the substrate divided by the distance from the elevation to the next adjacent line of weakness is equal to the tangent of an angle between 2* to 10*; D. the even numbered segments being free of elevations.

Claim 15

Dependent Claim 30 words

A planar strip of indefinite running length suitable to be pleated and circularly bent into a cartridge element for a getter pump, said strip comprising: A. rectangular segments each comprising:

Claim 16

Dependent Claim 30 words

A planar strip of indefinite running length suitable to be pleated and circularly bent into a cartridge element for a getter pump, said strip comprising: A. rectangular segments each comprising:

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1975-05-16	1975-11-15	1976-05-16	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1979-05-16	1979-11-15	1980-05-16	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1983-05-16	1983-11-15	1984-05-16	$7700.00	Window Closed / Lapsed

Getter pump cartridge

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