US3591818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive coupling
Assignee: PROCESS IND Inc
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Filing: 1969-03-10
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Granted: 1971-07-06
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Expires: 1989-03-10
Abstract
Abstract An electromagnetic responsive coupling for shafts and the like, one magnetic responsive component being of soft iron, high intensity permanent magnetic material of metal or ceramic, with the other and outer component being electromagnetic with power supply, supporting bearings being provided to retain alignment, and the inner and outer components being isolated to prevent fluid communication therebetween.
Inventors
- 👤 Garland L Fulton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:00
CPC Classifications
H; H02; H02K; H02K49/00; H02K49/06
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
168 words
A coupling comprising a housing having a cylindrical portion and an end flange, means at one end of said housing closing said end of said housing, said means including a rim with a sleeve extending longitudinally within said housing from said rim and having a closed end spaced from said rim, said means having a shaft bearing carried thereby, a shaft extending within said housing from one end thereof and terminating within said sleeve and having a cylindrical pole piece member thereon, said pole piece member being disposed between said closed end of said sleeve and said bearing, a shaft extending within said housing from the other end thereof and having a cup-shaped carrier secured thereto, and extending in Radially spaced surrounding relation to said pole piece member, said carrier having a plurality of windings and pole pieces energized thereby, and means for energizing said windings including conductor rings mounted on said carrier and contact members connected to a source of electric energy and engaging said conductor rings.
Claim 2
Dependent Claim
168 words
A coupling comprising a housing having a cylindrical portion and an end flange, means at one end of said housing closing said end of said housing, said means including a rim with a sleeve extending longitudinally within said housing from said rim and having a closed end spaced from said rim, said means having a shaft bearing carried thereby, a shaft extending within said housing from one end thereof and terminating within said sleeve and having a cylindrical pole piece member thereon, said pole piece member being disposed between said closed end of said sleeve and said bearing, a shaft extending within said housing from the other end thereof and having a cup-shaped carrier secured thereto, and extending in Radially spaced surrounding relation to said pole piece member, said carrier having a plurality of windings and pole pieces energized thereby, and means for energizing said windings including conductor rings mounted on said carrier and contact members connected to a source of electric energy and engaging said conductor rings.
Claim 3
Dependent Claim
22 words
A coupling as defined in claim 6 in which said pole piece member has an enclosing casing therearound interiorly of said sleeve.
Claim 4
Dependent Claim
30 words
A coupling as defined in claim 6 in which said means includes an outer end closure member closing one end of the space within said housing exteriorly of said sleeve.
Claim 5
Dependent Claim
27 words
A coupling as defined in claim 3 in which said means includes an inner end closure member closing the interior space at one end of said sleeve.
Claim 6
Dependent Claim
33 words
A coupling as defined in claim 6 in which one of said shafts is an input shaft and the other is an output shaft, and sand input shaft has said carrier secured thereto.
Claim 7
Dependent Claim
42 words
A coupling as defined in claim 1 in which cooling means is provided including a fluid passageway in said shaft between opposite ends of said ends of said cylindrical pole piece and the space between said cylindrical pole piece and said sleeve.
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) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |