US3649865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire mesh member having intersecting strands bonded together and method of manufacture
Assignee: Tektronix Inc
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Filing: 1969-12-29
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Granted: 1972-03-14
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Expires: 1989-12-29
Abstract
Abstract A woven wire mesh member and method of manufacture are described in which the intersecting wire strands are bonded together and then etched for increasing the transmission characteristics of such mesh. The bonding of the intersecting portions of the wire strands is accomplished by electroplating and insures a strong mesh structure whose wires remain in a fixed position after such etching. The bonded mesh member is etched by electropolishing to uniformly reduce the diameter of the wires and removes the plating layer from the wires except in the regions of such bonds. This electropolishing increases the electron transmission characteristics of the wire mesh, in one example to a transmission of 85 to 90 percent. Such a mesh member may be used as a grid, a collector or a storage target electrode in an electron beam tube.
Inventors
- 👤 Robert E Holmes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:33
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/02; H01J9/14; H01J19/00; H01J19/28; H01J19/38; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0015; H01J2893/0016
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
110 words
A mesh electrode member, comprising: a plurality of first metal strands laterally spaced from each other and extending in a first direction; a plurality of second metal strands laterally spaced from each other and extending in a second direction across said first strands, said first and second strands being interwoven to form a mesh and having intersecting portions which cross other strands; and bonding means including a plurality of bonds formed between intersecting portions of said first and second strands by bonding material provided as a coating on said strands only at said bonds, said first and second strands being uncoated by said bonding material except at said intersecting portions.
Claim 2
Dependent Claim
110 words
A mesh electrode member, comprising: a plurality of first metal strands laterally spaced from each other and extending in a first direction; a plurality of second metal strands laterally spaced from each other and extending in a second direction across said first strands, said first and second strands being interwoven to form a mesh and having intersecting portions which cross other strands; and bonding means including a plurality of bonds formed between intersecting portions of said first and second strands by bonding material provided as a coating on said strands only at said bonds, said first and second strands being uncoated by said bonding material except at said intersecting portions.
Claim 3
Dependent Claim
21 words
A mesh member in accordance with claim 1 in which the mesh is attached to a support ring surrounding said mesh.
Claim 4
Dependent Claim
35 words
A mesh member in accordance with claim 1 in which the mesh is made of wire of substantially circular cross section and which includes support means for mounting said mesh member in an electron tube.
Claim 5
Dependent Claim
26 words
A mesh member in accordance with claim 1 in which the bonding material is a metal different than the metal of said first and second strands.
Claim 6
Dependent Claim
22 words
A mesh member in accordance with claim 4 in which the bonding metal is nickel and the strand metal is stainless steel.
Claim 7
Dependent Claim
44 words
A mesh member in accordance with claim 1 in which the strand metal is taken from a first group consisting of stainless steel, copper, nickel and tungsten, and the bonding metal is taken from a second group consisting of nickel, copper, silver and platinum.
References Cited (Backward Citations)
US22009A
Cited
US1892819A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |