US4724349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pivoting armature of an electric control motor
Assignee: Robert Bosch GmbH
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Filing: 1986-03-10
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Granted: 1988-02-09
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Expires: 2006-03-10
Abstract
Abstract A pivoting armature which functions as part of an electric control motor is rotatably supported on a shaft in a housing of the electric control motor and has a pole carrier on which pole shoes are mounted, the pole shoes being joined to the pole carrier in a rotationally fixed manner. The pole shoes can be produced by sintering or welding on a pole shoe ring that is pressed onto the pole carrier, or by stacks of laminates.
Inventors
- 👤 Gerold Grimm
- 👤 Ulrich Kemmner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:51
CPC Classifications
F; F02; F02M; F02M3/00; F02M3/06; F02M3/07; F02D; F02D9/00; F02D9/08; F02D9/12; F02D9/16; H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/14; H01F7/145; F02M2003/067
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
68 words
In an electric control motor having a housing and a pivotal armature, said pivotal armature comprising a pole carrier and at least two pole shoes, said pole shoes being fitted onto said pole carrier, each of said two shoes are made in the form of an annular section from sheet metal and are welded to the pole carrier and fixed in their position relative to said pole carrier.
Claim 2
Dependent Claim
68 words
In an electric control motor having a housing and a pivotal armature, said pivotal armature comprising a pole carrier and at least two pole shoes, said pole shoes being fitted onto said pole carrier, each of said two shoes are made in the form of an annular section from sheet metal and are welded to the pole carrier and fixed in their position relative to said pole carrier.
Claim 3
Dependent Claim
61 words
In an electric control motor having a housing and a pivotal armature, said pivotal armature comprising a pole carrier and at least two pole shoes, said at least two pole shoes being manufactured by sintering and being parts of a sintered pole shoe ring which is secured onto said pole carrier and fixed in their position relative to said pole carrier.
Claim 4
Dependent Claim
61 words
In an electric control motor having a housing and a pivotal armature, said pivotal armature comprising a pole carrier and at least two pole shoes, said at least two pole shoes being manufactured by sintering and being parts of a sintered pole shoe ring which is secured onto said pole carrier and fixed in their position relative to said pole carrier.
Claim 5
Dependent Claim
103 words
In an electric control motor having a housing and a pivotal armature, said pivotal armature comprising a pole carrier and at least two pole shoes, said at least pole shoes being formed by superimposing laminated sheets concentrically on one another, each lamination sheet having an annular part and radially outwardly extending pole shoe parts, the annular parts being secured on said pole carrier and fixed in their position relative to said pole carrier, the pole shoe parts of the individual lamination sheets having different lengths in the circumferential direction, and the lamination sheets being joined together such that wedge-shaped pole shoes are formed.
Claim 6
Dependent Claim
103 words
In an electric control motor having a housing and a pivotal armature, said pivotal armature comprising a pole carrier and at least two pole shoes, said at least pole shoes being formed by superimposing laminated sheets concentrically on one another, each lamination sheet having an annular part and radially outwardly extending pole shoe parts, the annular parts being secured on said pole carrier and fixed in their position relative to said pole carrier, the pole shoe parts of the individual lamination sheets having different lengths in the circumferential direction, and the lamination sheets being joined together such that wedge-shaped pole shoes are formed.
References Cited (Backward Citations)
US3112464A
Cited
US1108442A
Cited
GB196048A
Cited
US2236291A
Cited
US2516140A
Cited
US3949250A
Cited
US3959672A
Cited
US4135119A
Cited
US4504770A
Cited
US4455516A
Cited
US4593222A
Cited
US4633201A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-02-08 | 1991-08-10 | 1992-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-08 | 1995-08-10 | 1996-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-08 | 1999-08-10 | 2000-02-09 | $7700.00 | Window Closed / Lapsed |