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US4704555A Expired / Lapsed US ⏱️ 0.0 years remaining

Improved disc rotor assembly

Assignee: General Electric Co
•
Filing: 1986-06-16
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Granted: 1987-11-03
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Expires: 2006-06-16
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Abstract

Abstract A disc rotor assembly includes a ring of magnetic flux conducting material having a ring-shaped magnetizable body fastened thereon. The magnetizable body includes a flat, axially facing, ring-shaped rotor surface for opposing a stator in an electric motor. The disc rotor assembly further includes a shaft disposed coaxially therewith, and a matrix molded between the ring and the shaft.

Inventors

  • 👤 Vijay K. Stokes

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 08:04
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/02; H02K15/03; H02K1/00; H02K1/06; H02K1/22; H02K1/27; H02K1/2793; H02K1/2795; H02K21/00; H02K21/12; H02K21/24

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 137 words
A disc rotor assembly comprising: a ring shaped magnetizable body having a substantially flat and axially facing ring shaped rotor surface; a ring of magnetic flux conducting material including an axially facing surface, said ring of magnetic flux conducting material having a plurality of first and second bendable tabs disposed about the inner and outer circumferential edges of said ring of magnetic flux conducting material surface, said tabs being positioned to engage said magnetizable body; mounting measn for providing an axis of rotation for said disc rotor assembly; and matrix means disposed between said ring of magnetic flux conducting material and said mounting means, said second tabs of said ring of magnetic flux conducting material being positioned to engage said matrix means, said matrix means securing said ring of magnetic flux conducting material to said mounting means.
Claim 2
Dependent Claim 137 words
A disc rotor assembly comprising: a ring shaped magnetizable body having a substantially flat and axially facing ring shaped rotor surface; a ring of magnetic flux conducting material including an axially facing surface, said ring of magnetic flux conducting material having a plurality of first and second bendable tabs disposed about the inner and outer circumferential edges of said ring of magnetic flux conducting material surface, said tabs being positioned to engage said magnetizable body; mounting measn for providing an axis of rotation for said disc rotor assembly; and matrix means disposed between said ring of magnetic flux conducting material and said mounting means, said second tabs of said ring of magnetic flux conducting material being positioned to engage said matrix means, said matrix means securing said ring of magnetic flux conducting material to said mounting means.
Claim 3
Dependent Claim 24 words
The disc rotor assembly of claim 1 wherein said mounting means comprises a shaft disposed coaxially with said ring of magnetic flux conducting material.
Claim 4
Dependent Claim 14 words
The disc rotor assembly of claim 1 wherein said matrix means comprises a plastic.
Claim 5
Dependent Claim 20 words
The disc rotor assembly of claim 1 wherein said magnetizable body comprises a plurality of adjoining arcuate magnetizable body segments.
Claim 6
Dependent Claim 29 words
The disc rotor assembly of claim 4 wherein each of said magnetizable body segments is generally trapezoidal in shape such that said said magnetizable body is polygonal in shape.
Claim 7
Dependent Claim 50 words
The disc rotor assembly of claim 1 wherein: said ring of magnetic flux conducting material comprises a plurality of adjoining arcuate ring segments; and said magnetizable body comprises a plurality of adjoining arcuate magnetizable body segments, each of said magnetizable body segments being disposed on one of said ring segments.
Claim 8
Dependent Claim 34 words
The disc rotor assembly of claim 6 wherein: each of said ring segments and magnetizable body segments is generally trapezoidal in shape such that said ring and said magnetizable body are polygonal in shape.
Claim 9
Dependent Claim 36 words
The disc rotor assembly of claim 1 wherein: said magnetizable body includes chamfered radial edges; and said matrix extends over said radial edges of said magnetizable body for fastening said magnetizable body to said rotor assembly.
Claim 10
Dependent Claim 159 words
A disc rotor assembly comprising: a ring of magnetic flux conducting material comprising a plurality of adjoining arcuate segments and including an axially facing surface, said ring further including a plurality of first and second bendable tabs disposed about the inner and outer radial edges thereof; a ring shaped magnetizable body fastened on said axial facing surface of said ring of magnetic flux conducting material, said magnetizable body comprising a plurality of adjoining arcuate magnetizable body segments, said magnetizable body having a substantially flat and axially facing ring shaped rotor surface, said magnetizable body including a pair of chamfered radial edges; said plurality of first bendable tabs positioned to engage said radial edges of said magnetizable body; mounting means for providing an axis of rotation for said disc rotor assembly selectively positioned relative to said ring and said magnetizable body for maintaining the relative positions therebetween; and said plurality of second bendable tabs positioned to engage said matrix means.
Claim 11
Dependent Claim 159 words
A disc rotor assembly comprising: a ring of magnetic flux conducting material comprising a plurality of adjoining arcuate segments and including an axially facing surface, said ring further including a plurality of first and second bendable tabs disposed about the inner and outer radial edges thereof; a ring shaped magnetizable body fastened on said axial facing surface of said ring of magnetic flux conducting material, said magnetizable body comprising a plurality of adjoining arcuate magnetizable body segments, said magnetizable body having a substantially flat and axially facing ring shaped rotor surface, said magnetizable body including a pair of chamfered radial edges; said plurality of first bendable tabs positioned to engage said radial edges of said magnetizable body; mounting means for providing an axis of rotation for said disc rotor assembly selectively positioned relative to said ring and said magnetizable body for maintaining the relative positions therebetween; and said plurality of second bendable tabs positioned to engage said matrix means.
Claim 12
Dependent Claim 91 words
A disc rotor assembly comprising: a ring of magnetic flux conducting material including an axially facing surface; a ring shaped magnetizable body having a substantially flat and axially facing ring shaped rotor surface; mounting means for providing an axis of rotation for said disc rotor assembly; and matrix means in the form of a spider hub including radially extending ribs extending between said shaft and said ring of magnetic flux conducting material for fastening said ring of magnetic flux conducting amterial to said mounting means, said matrix means comprising a plastic.
Claim 13
Dependent Claim 91 words
A disc rotor assembly comprising: a ring of magnetic flux conducting material including an axially facing surface; a ring shaped magnetizable body having a substantially flat and axially facing ring shaped rotor surface; mounting means for providing an axis of rotation for said disc rotor assembly; and matrix means in the form of a spider hub including radially extending ribs extending between said shaft and said ring of magnetic flux conducting material for fastening said ring of magnetic flux conducting amterial to said mounting means, said matrix means comprising a plastic.

References Cited (Backward Citations)

US3320453A Cited
GB954771A Cited
US3324321A Cited
US3538365A Cited
US3502914A Cited
DE2018808A1 Cited
US4095129A Cited
US4206379A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-11-02 1991-05-04 1991-11-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-11-02 1995-05-04 1995-11-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-11-02 1999-05-04 1999-11-03 $7700.00 Window Closed / Lapsed

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