US3899885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-magnetic energizer
Assignee: HAGERTY RESEARCH AND DEV CO IN
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Filing: 1973-12-03
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Granted: 1975-08-19
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Expires: 1993-12-03
Abstract
Abstract A first plurality or group of magnets is mounted in a housing in a pattern having a circular cross section. A second plurality or group of magnets is mounted in spaced relationship with respect to the first group and means are provided for moving one of the groups of magnets relative to the other. A conductive member is located in the space between the two groups of magnets, in the magnetic field therebetween. Rotation of the one group and variation in the flux causes the conductive member to become heated. A fluid is then directed past the member, in heattransfer relationship with respect thereto, to cause the fluid to be heated and useable as a working fluid.
Inventors
- 👤 John P Hagerty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:27
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/10; H05B6/105; H05B6/109; F; F02; F02K; F02K5/00; F24; F24H; F24H1/00; H02; H02K; H02K49/00; H02K49/02; H02K49/04; H02K49/043; H02K49/046; H05B6/108
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
Apparatus for heating a fluid comprising a housing, a first plurality of magnets mounted in a pattern witH a circular transverse cross section in said housing, a rotatable member with an outer circular configuration, a second plurality of magnets held by said rotatable member, means for rotating said rotatable member, a conductive member between said first and said second pluralities of magnets, means for establishing a flow of fluid past said conductive member, and a high velocity nozzle positioned downstream of said conductive member to receive the heated fluid flowing past said conductive member.
Claim 2
Dependent Claim
94 words
Apparatus for heating a fluid comprising a housing, a first plurality of magnets mounted in a pattern witH a circular transverse cross section in said housing, a rotatable member with an outer circular configuration, a second plurality of magnets held by said rotatable member, means for rotating said rotatable member, a conductive member between said first and said second pluralities of magnets, means for establishing a flow of fluid past said conductive member, and a high velocity nozzle positioned downstream of said conductive member to receive the heated fluid flowing past said conductive member.
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) | 1978-08-18 | 1979-02-17 | 1979-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-18 | 1983-02-17 | 1983-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-18 | 1987-02-17 | 1987-08-19 | $7700.00 | Window Closed / Lapsed |