US3633273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of constructing electrical windings
Assignee: Westinghouse Electric Corp
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Filing: 1970-03-16
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Granted: 1972-01-11
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Expires: 1990-03-16
Abstract
Abstract Methods of forming a notch in the edge of sheet conductors to transpose the relative radial positions of sheet conductors in an electrical winding. The methods include folding the sheet material in a predetermined manner to provide a notch without cutting the material, and cutting, folding and joining the sheet materials to simplify the formation of the notch, while minifying the amount of conductive material removed from the sheet.
Inventors
- 👤 Garlington C Wilburn
- 👤 George P Michel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:59
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/28; H01F27/2847; H01F27/2823; H01F2027/2838; H01F2027/2857; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
187 words
A method of forming a notch in one of the edges of a sheet of electrically conductive material having first and second edges and first and second ends, comprising the steps of: folding the sheet along a first bend line which extends between the first and second edges of the sheet, said first bend line having a predetermined dimension, folding the sheet along a second bend line which starts at the first edge of the sheet at the point where the first bend line intersects the first edge, and extends to a point on the second edge of the sheet which is said predetermined dimension from the point where the first bend line intersects the second edge, and folding the sheet along a third bend line which is parallel with said second bend line, said third bend line starting at the second edge of the sheet at the point where the first bend line intersects the second edge, and extending to a point on the first edge of the sheet which is said predetermined dimension from the point wherein the first bend line intersects the first edge.
Claim 2
Independent Claim
187 words
A method of forming a notch in one of the edges of a sheet of electrically conductive material having first and second edges and first and second ends, comprising the steps of: folding the sheet along a first bend line which extends between the first and second edges of the sheet, said first bend line having a predetermined dimension, folding the sheet along a second bend line which starts at the first edge of the sheet at the point where the first bend line intersects the first edge, and extends to a point on the second edge of the sheet which is said predetermined dimension from the point where the first bend line intersects the second edge, and folding the sheet along a third bend line which is parallel with said second bend line, said third bend line starting at the second edge of the sheet at the point where the first bend line intersects the second edge, and extending to a point on the first edge of the sheet which is said predetermined dimension from the point wherein the first bend line intersects the first edge.
Claim 3
Dependent Claim
23 words
The method of claim 1, wherein said first bend line is substantially perpendicular to the first and second edges of the sheet material.
Claim 4
Dependent Claim
76 words
The method of claim 1, wherein said first bend line intersects the first edge of the sheet closer to the first end of the sheet than the intersection of the first bend line with the second edge of the sheet, with said second bend line extending from said first bend line towards the second end of the sheet, and said third bend line extending from said first bend line towards the first end of the sheet.
Claim 5
Independent Claim
386 words
A method of transporting the relative positions of first and second superposed sheet materials having first and second edges comprising the steps of forming a notch in the first edge of the first sheet material by folding the first sheet along a first bend line which extends between the first and second edges of said sheet, said first bend line having a predetermined dimension, folding the sheet along a second bend line which starts at the first edge of said sheet at the point where the first bend line intersects the first edge, and extends to a point on the second edge which is said predetermined dimension from the point where the first bend line intersects the second edge, and folding the sheet along a third bend line which is parallel with said second bend line, said third bend line starting at the second edge of the sheet at the point where the first bend line intersects the second edge, and extending to a point on the first edge which is said predetermined dimension from the point where the first bend line intersects the first edge, forming a notch in the second edge of the second sheet material by folding the second sheet along a first bend line which intersects the first and second edges of said sheet, said first bend line having said predetermined dimension, folding the sheet along a second bend line which starts at the second edge of said sheet at the point where the first bend line intersects the second edge, and extends to a point on the first edge which is said first predetermined dimension from the point where the first bend line intersects the first edge, and folding the sheet along a third bend line which is parallel with said second bend line, said third bend line starting at the first edge of the sheet at the point where the first bend line intersects the first eDge, and extending to a point on the second edge which is said predetermined dimension from the point where the first bend line intersects the second edge, and transposing the relative positions of said first and second sheet materials by directing the first sheet through the notch in the second sheet, and by directing the second sheet through the notch in the first sheet.
Claim 6
Independent Claim
386 words
A method of transporting the relative positions of first and second superposed sheet materials having first and second edges comprising the steps of forming a notch in the first edge of the first sheet material by folding the first sheet along a first bend line which extends between the first and second edges of said sheet, said first bend line having a predetermined dimension, folding the sheet along a second bend line which starts at the first edge of said sheet at the point where the first bend line intersects the first edge, and extends to a point on the second edge which is said predetermined dimension from the point where the first bend line intersects the second edge, and folding the sheet along a third bend line which is parallel with said second bend line, said third bend line starting at the second edge of the sheet at the point where the first bend line intersects the second edge, and extending to a point on the first edge which is said predetermined dimension from the point where the first bend line intersects the first edge, forming a notch in the second edge of the second sheet material by folding the second sheet along a first bend line which intersects the first and second edges of said sheet, said first bend line having said predetermined dimension, folding the sheet along a second bend line which starts at the second edge of said sheet at the point where the first bend line intersects the second edge, and extends to a point on the first edge which is said first predetermined dimension from the point where the first bend line intersects the first edge, and folding the sheet along a third bend line which is parallel with said second bend line, said third bend line starting at the first edge of the sheet at the point where the first bend line intersects the first eDge, and extending to a point on the second edge which is said predetermined dimension from the point where the first bend line intersects the second edge, and transposing the relative positions of said first and second sheet materials by directing the first sheet through the notch in the second sheet, and by directing the second sheet through the notch in the first sheet.
Claim 7
Dependent Claim
31 words
The method of claim 4, wherein the first bend lines in each of said first and second sheet materials are perpendicular to the first and second edges of the sheet materials.
Claim 8
Dependent Claim
131 words
The method of claim 4, wherein the first bend line in said first sheet material forms first and second predetermined angles with the first edge of the sheet, with said first and second angles being less than and greater than 90*, respectively, and said first bend line in said second sheet material forms first and second predetermined angles with the first edge of the sheet, with the first angle in said second sheet being substantially equal to the second angle in said first sheet, and with the second angle in the second sheet being substantially equal to the first angle in said first sheet, said second bend line intersecting the first angle in said first sheet material, and said third bend line intersecting the second angle in said second sheet material.
Claim 9
Independent Claim
193 words
A method of forming a notch in one of the edges of a sheet of electrically conductive material having first and second edges which define a predetermined width dimension, comprising the steps of: cutting said sheet material along a first line perpendicular to its first and second edges to form first and second portions having cut ends, folding each of said portions along first bend lines which start at the corner of its cut end joined by the first edge, and intersect the second edge a predetermined distance from the corner of its cut end joined by the second edge, to form a triangular point on each cut end of said first and second portions, folding any material which extends past the first edge, after folding along the first bend lines, along second bend lines which coincide with the first edge. cutting each of the triangular points on said first and second portions along second cut lines perpendicular to the first edge, starting at the first edge a predetermined dimension from the extreme end of its triangular point, and joining said first and second portions mechanically and electrically at the second cut lines.
Claim 10
Independent Claim
193 words
A method of forming a notch in one of the edges of a sheet of electrically conductive material having first and second edges which define a predetermined width dimension, comprising the steps of: cutting said sheet material along a first line perpendicular to its first and second edges to form first and second portions having cut ends, folding each of said portions along first bend lines which start at the corner of its cut end joined by the first edge, and intersect the second edge a predetermined distance from the corner of its cut end joined by the second edge, to form a triangular point on each cut end of said first and second portions, folding any material which extends past the first edge, after folding along the first bend lines, along second bend lines which coincide with the first edge. cutting each of the triangular points on said first and second portions along second cut lines perpendicular to the first edge, starting at the first edge a predetermined dimension from the extreme end of its triangular point, and joining said first and second portions mechanically and electrically at the second cut lines.
Claim 11
Dependent Claim
77 words
The method of claim 7, wherein said first predetermined bend lines intersect the second edges of said first and second portions at a point whose distance from the intersection of the first cut line with the second edge is equal to the width dimension of said sheet, forming triangular points having a 45* angle, wherein the first cut lines coincide with the first edge after the first and second portions are folded along the first bend lines.
Claim 12
Dependent Claim
56 words
The method of claim 7, wherein said first predetermined bend lines intersect the second edges of said first and second portions at a point whose distance from the intersection of the first cut line with the second edge is greater than the width dimension of said sheet, forming triangular points having an angle less than 45*.
Claim 13
Dependent Claim
50 words
The method of claim 7, wherein said first predetermined bend lines intersect the second edge of said first and second portions at a point whose distances from the intersection of the first cut line with the second edge is that necessary to form triangular points having an angle of 30*.
Claim 14
Dependent Claim
58 words
The method of claim 10, wherein after cutting each of the triangular points on said first and second portions, the material folded along said second bend lines, is folded along third bend lines which extend from the intersection of the second cut lines and the first bend lines to the first edge of the first and second portions.
Claim 15
Independent Claim
470 words
A method of transposing the relative positions of first and second superposed sheet materials having first anD second edges which define a predetermined width dimension comprising the steps of: forming a notch in the first edge of the first sheet material by cutting said first sheet material along a line perpendicular to its first and second edges to form first and second portions having cut ends, folding each of said portions along bend lines which start at the corner of its cut end joined by the second edge, and intersecting the first edge at a point whose distance from the corner of its cut end joined by the second edge is at least equal to the predetermined width dimension of the sheet, to form a triangular point on each cut end of said first and second portions, folding any material which extends past the second edge, after folding along the first bend lines, along bend lines which coincide with the second edge, cutting each of the triangular points on said first and second portions along second cut lines perpendicular to said second edge, starting at the second edge a predetermined dimension from the extreme ends of its triangular point, which predetermined dimension is not greater than one-half the width dimension of said sheet, welding said first and second portions together at the second cut lines, forming a notch in the second edge of the second sheet material by cutting said second sheet material along a first cut line perpendicular to its first and second edges, to form first and second portions having cut ends, folding each of said portions along first bend lines which start at the corner of its cut end joined by the first edge, and intersecting the second edge at a point whose distances from the corner of its cut end joined by the second edge is at least equal to the predetermined width dimension of the sheet, to form a triangular point on each cut end of said first and second portions, folding any material which extends past the first edge, after folding along the first bend lines, along bend lines which coincide with the first edge, cutting each of the triangular points on said first and second portions, along second cut lines perpendicular to said first edge, starting at the first edge a predetermined dimension from the extreme end of its triangular point, which predetermined dimension is not greater than one-half the width dimension of said second sheet, welding said first and second portions of said second sheet together at the second cut lines, and transposing the relative positions of said first and second sheet materials by directing the first sheet material through the notch in the second sheet material, and by directing the second sheet material through the notch in the first sheet material.
Claim 16
Independent Claim
470 words
A method of transposing the relative positions of first and second superposed sheet materials having first anD second edges which define a predetermined width dimension comprising the steps of: forming a notch in the first edge of the first sheet material by cutting said first sheet material along a line perpendicular to its first and second edges to form first and second portions having cut ends, folding each of said portions along bend lines which start at the corner of its cut end joined by the second edge, and intersecting the first edge at a point whose distance from the corner of its cut end joined by the second edge is at least equal to the predetermined width dimension of the sheet, to form a triangular point on each cut end of said first and second portions, folding any material which extends past the second edge, after folding along the first bend lines, along bend lines which coincide with the second edge, cutting each of the triangular points on said first and second portions along second cut lines perpendicular to said second edge, starting at the second edge a predetermined dimension from the extreme ends of its triangular point, which predetermined dimension is not greater than one-half the width dimension of said sheet, welding said first and second portions together at the second cut lines, forming a notch in the second edge of the second sheet material by cutting said second sheet material along a first cut line perpendicular to its first and second edges, to form first and second portions having cut ends, folding each of said portions along first bend lines which start at the corner of its cut end joined by the first edge, and intersecting the second edge at a point whose distances from the corner of its cut end joined by the second edge is at least equal to the predetermined width dimension of the sheet, to form a triangular point on each cut end of said first and second portions, folding any material which extends past the first edge, after folding along the first bend lines, along bend lines which coincide with the first edge, cutting each of the triangular points on said first and second portions, along second cut lines perpendicular to said first edge, starting at the first edge a predetermined dimension from the extreme end of its triangular point, which predetermined dimension is not greater than one-half the width dimension of said second sheet, welding said first and second portions of said second sheet together at the second cut lines, and transposing the relative positions of said first and second sheet materials by directing the first sheet material through the notch in the second sheet material, and by directing the second sheet material through the notch in the first sheet material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |