Patent US3783224A successfully refreshed from Google Patents.
US3783224A
Expired / Lapsed
US
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Edm electrode construction and method of making same
Assignee: Automotive Pattern Co
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Filing: 1971-03-29
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Granted: 1974-01-01
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Expires: 1991-03-29
Abstract
Abstract An electrode construction for use in operative association with electrical discharge machines, and method of making same, the electrode comprising a plurality of adjacently oriented cooperable segmental electrode sections arranged so as to define a working surface having a conformation corresponding to the shape to which a workpiece is to be machined; a support structure or holder member adapted to operatively support the electrode sections in a manner such that said sections may be removed and replaced after they have become excessively eroded or otherwise consumed; the method of making the electrode including the steps of providing a mold or form having a face portion of the same conformation as the ultimate shape to which the workpiece is to be machined; providing a parting or release substance on the face portion of the form and thereafter arranging the plurality of electrode sections on the form; providing a deformable material on one side of the holder member and biasing said member toward and into engagement with the electrode sections in a manner such that the material is deformed so as to define a reference surface upon which the electrode sections may be detachably mounted.
Inventors
- 👤 L Schroeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:44
CPC Classifications
B; B23; B23H; B23H1/00; B23H1/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49204; Y10T29/49208; Y10T29/49218
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
88 words
A process for making an electrical discharge machine electrode, which includes the steps of, providing a surface having a preselected conformation, arranging a plurality of segmental electrode sections in generally edge to edge abutting relationship on the surface, moving an electrode supporting member having a deformable and adhesive supporting face portion thereon toward said surface and then into engagement with the electrode sections on said surface, and thereafter moving said member away from said surface and thereby transferring said sections from said surface to said supporting face portion.
Claim 2
Dependent Claim
88 words
A process for making an electrical discharge machine electrode, which includes the steps of, providing a surface having a preselected conformation, arranging a plurality of segmental electrode sections in generally edge to edge abutting relationship on the surface, moving an electrode supporting member having a deformable and adhesive supporting face portion thereon toward said surface and then into engagement with the electrode sections on said surface, and thereafter moving said member away from said surface and thereby transferring said sections from said surface to said supporting face portion.
Claim 3
Dependent Claim
27 words
The process as set forth in claim 1 which includes the step of providing a release agent on the surface prior to placing said electrode sections thereon.
Claim 4
Dependent Claim
35 words
The process as set forth in claim 1 which includes the step of transferring said electrode sections from said surface to said support member and simultaneously forming a permanent reference surface on said support member.
Claim 5
Dependent Claim
27 words
The process as set forth in claim 1 which includes the step of shaping said material to a preselected configuration upon engagement thereof with said electrode sections.
Claim 6
Dependent Claim
27 words
The process as set forth in claim 1 which includes the step of providing auxiliary fastening means for detachably securing said electrode sections to said face portion.
Claim 7
Dependent Claim
42 words
The process as set forth in claim 1 which includes the step of providing aligned openings in said support member and said electrode sections for communicating dielectric fluid between one side of said support member and the working surface of electrode sections.
Claim 8
Dependent Claim
111 words
In the method of making an electrode holder for operatively supporting an electrode on an associated electrical discharge machine, the steps which include, making a pattern having the size and shape of the article to be formed on the machine, placing a plurality of segmental electrode sections on the pattern, forming a supporting face portion on a support member roughly approximating the size and shape of the article to be formed, placing a deformable substance on the face portion, and moving the support member toward Engagement with the electrode sections and thereby deforming said substance to a configuration defining a permanent reference surface upon which electrode sections may be detachably mounted.
Claim 9
Dependent Claim
111 words
In the method of making an electrode holder for operatively supporting an electrode on an associated electrical discharge machine, the steps which include, making a pattern having the size and shape of the article to be formed on the machine, placing a plurality of segmental electrode sections on the pattern, forming a supporting face portion on a support member roughly approximating the size and shape of the article to be formed, placing a deformable substance on the face portion, and moving the support member toward Engagement with the electrode sections and thereby deforming said substance to a configuration defining a permanent reference surface upon which electrode sections may be detachably mounted.
Claim 10
Dependent Claim
19 words
The method as set forth in claim 7 which includes the step of providing a pattern with multiple facets.
Claim 11
Dependent Claim
24 words
The method as set forth in claim 8 which includes the step of providing at least one electrode section for each of said facets.
Claim 12
Dependent Claim
29 words
The method as set forth in claim 8 which includes the step of providing said face portion with a plurality of areas corresponding one to each of said facets.
Claim 13
Dependent Claim
34 words
The method as set forth in claim 7 which includes the step of simultaneously transferring said electrode sections to said support member from said pattern and deforming said substance to define said reference surface.
Claim 14
Dependent Claim
28 words
The method as set forth in claim 7 which includes the step of detachably securing successive electrode sections to said reference surface by means of an adhesive material.
Claim 15
Dependent Claim
24 words
The method as set forth in claim 7 which includes the step of securing successive electrode sections to said reference surface by fastener means.
Claim 16
Dependent Claim
40 words
The method as set forth in claim 7 which includes the step of connecting different electrode sections with power supplies of different magnitude, whereby electrical energy of different amperages may be transmitted to different electrode sections on said support member.
Claim 17
Dependent Claim
85 words
A process for making an electrical discharge machine electrode comprising the steps of: forming a relatively irregular mounting surface in an electrode supporting member, said surface roughly approximating the contour of the surface to be machined; locating a plurality of segmental electrode elements in said supporting member in spaced relationship relative to said mounting surface and arranged in conformance with the surface to be machined; and locating a layer of material between said elements and said irregular mounting surface whereby to contiguously engage said elements.
Claim 18
Dependent Claim
85 words
A process for making an electrical discharge machine electrode comprising the steps of: forming a relatively irregular mounting surface in an electrode supporting member, said surface roughly approximating the contour of the surface to be machined; locating a plurality of segmental electrode elements in said supporting member in spaced relationship relative to said mounting surface and arranged in conformance with the surface to be machined; and locating a layer of material between said elements and said irregular mounting surface whereby to contiguously engage said elements.
Claim 19
Dependent Claim
35 words
The process as recited in claim 15 wherein said second mentioned locating step includes bonding said layer of material to said supporting member and detachably engaging said layer of material to said plurality of elements.
Claim 20
Dependent Claim
36 words
The process as recited in claim 15 which includes the step of preselecting said material for said layer in accordance with flow properties such that a reference surface is formed on one side of said elements.
Claim 21
Dependent Claim
31 words
The process as recited in claim 15 which includes the step of forming a dielectric fluid manifold chamber on an opposite side of said support member relative to said mounting surface.
Claim 22
Dependent Claim
48 words
The process as recited in claim 15 wherein said first mentioned locating step includes the step of locating a marginal edge of one of said electrode elements in spaced relationship relative to a marginal edge of an adjacent element whereby to insulate said one section from the other.
Claim 23
Dependent Claim
19 words
The process as recited in claim 15 which includes the step of fabricating said segmented elements from different materials.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |