US3698079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a printed circuit armature
Assignee: Unisys Corp
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Filing: 1970-11-05
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Granted: 1972-10-17
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Expires: 1990-11-05
Abstract
Abstract A printed circuit armature wherein the conductors are printed on one face of an insulated support member, and which member is adapted to be folded into opposing leaf portions and then rolled into a cylinder whereby the conductors are arranged on the inner and outer surfaces of the cylinder.
Inventors
- 👤 Joshua Lifschitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:53
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/04; H02K3/26; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49012
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
185 words
In a method of making a printed circuit armature for an electric motor from a flat insulated support member the steps comprising, a. bonding a copper lamination to one face of the support member, b. forming a plurality of spaced electrical conductors from the copper laminate in parallel relationship whereby each of the conductors is provided with a first and second end terminal and a tab extending from the edge of the first terminal thereof only and beyond an edge of the support member, c. folding the support member into first and second leaf portions to adjacently align the edges of the first and second end terminals, d. forming the folded support member into a cylinder with the tabs extending from the exterior surfaces thereof and being disposed around the outer periphery of a base of the cylinder, and, e. bending each of the tabs over the adjacent edges of the first and second leaf portions of the support and over the edge of the next adjacent second terminal to contact the second surface of the next adjacent terminal to provide a completed armature circuit.
Claim 2
Dependent Claim
185 words
In a method of making a printed circuit armature for an electric motor from a flat insulated support member the steps comprising, a. bonding a copper lamination to one face of the support member, b. forming a plurality of spaced electrical conductors from the copper laminate in parallel relationship whereby each of the conductors is provided with a first and second end terminal and a tab extending from the edge of the first terminal thereof only and beyond an edge of the support member, c. folding the support member into first and second leaf portions to adjacently align the edges of the first and second end terminals, d. forming the folded support member into a cylinder with the tabs extending from the exterior surfaces thereof and being disposed around the outer periphery of a base of the cylinder, and, e. bending each of the tabs over the adjacent edges of the first and second leaf portions of the support and over the edge of the next adjacent second terminal to contact the second surface of the next adjacent terminal to provide a completed armature circuit.
Claim 3
Dependent Claim
22 words
The method according to claim 1 including the step of soldering the respective contacts between the bent over tabs and second terminals.
Claim 4
Dependent Claim
48 words
The method according to claim 2 wherein the step of soldering comprises coating the tabs and second terminals with a solder wetting solution and dipping the base of the cylindrical member into molten solder to simultaneously secure all the respective contacts between the tabs and the second terminals.
References Cited (Backward Citations)
US3084420A
Cited
US3382570A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |