US3597023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permanent magnet bearing
Assignee: Max Baermann GmbH
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Filing: 1969-09-10
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Granted: 1971-08-03
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Expires: 1989-09-10
Abstract
Abstract A permanent magnet bearing for use with apparatus of the type having a fixed member and a member rotatable with respect thereto. The bearing comprises a pair of bodies having first and second portions formed integrally with one another. Each first portion includes a pole surface so magnetized to bias said bodies into spaced-apart relationship. Each second portion includes connecting means for securing one of the bodies to the fixed member and the other of the bodies to the rotatable member.
Inventors
- 👤 Max Baermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:55
CPC Classifications
F; F16; F16C; F16C39/00; F16C39/06; F16C39/063; F16C32/00; F16C32/04; F16C32/0406; F16C32/0408; F16C32/0423; F16C32/0427; G; G01; G01R; G01R11/00; G01R11/02; G01R11/12; G01R11/14; F16C2370/00; F16C32/0402
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
162 words
A permanent magnet bearing for use with apparatus of the type having a fixed member and a member rotatable about an axis with respect thereto comprising: A pair of molded bodies each with an axis and having first and second portions molded integrally with one another and concentric to their axes, said first portions each including a large flat concentrically aligned pole surface perpendicular to the axis thereof, said surfaces arranged in opposed parallel relationship and magnetized so as to bias said bodies axially into parallel spaced-apart relationship, said second portions each extending axially away from said first portion a greater distance than said first portion thickness, and both portions of each body having an axially aligned hole formed by molding therethrough, said fixed member being affixed in axial alignment with the hole of one body and said rotatable member being affixed in axial alignment with the hole of the other body so both fixed and rotatable members are in axial alignment.
Claim 2
Dependent Claim
162 words
A permanent magnet bearing for use with apparatus of the type having a fixed member and a member rotatable about an axis with respect thereto comprising: A pair of molded bodies each with an axis and having first and second portions molded integrally with one another and concentric to their axes, said first portions each including a large flat concentrically aligned pole surface perpendicular to the axis thereof, said surfaces arranged in opposed parallel relationship and magnetized so as to bias said bodies axially into parallel spaced-apart relationship, said second portions each extending axially away from said first portion a greater distance than said first portion thickness, and both portions of each body having an axially aligned hole formed by molding therethrough, said fixed member being affixed in axial alignment with the hole of one body and said rotatable member being affixed in axial alignment with the hole of the other body so both fixed and rotatable members are in axial alignment.
Claim 3
Dependent Claim
55 words
A bearing according to claim 1 which includes a guiding needle having one end fixedly mounted in one member with the other end extending axially towards the second member, a bearing ring fixedly mounted to the second member slidably receiving the other end of the needle to assist in maintaining axial alignment between the members.
Claim 4
Dependent Claim
80 words
A permanent magnet bearing according to claim 2 which includes an annular guide means surrounding the needle in spaced relation thereto and affixed in Axial alignment to the first portion of one body with one end extending towards the other body, and an annular ring surrounding said needle in spaced relation thereto and affixed in axial alignment to the first portion of the other body to receive the extended end of said guide means in loose-fitting normally radially noncontacting relation.
Claim 5
Dependent Claim
28 words
A permanent bearing according to claim 3 where the large flat concentrically aligned pole surface has a greater radial surface area than the thickness of said first portion.
Claim 6
Dependent Claim
21 words
The permanent magnet bearing defined in claim 1 wherein said first portion further includes temperature compensators carried by said pole surfaces.
References Cited (Backward Citations)
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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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |