US3327264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alternating current solenoid construction
Assignee: Individual
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Filing: 1965-04-23
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Granted: 1967-06-20
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Expires: 1985-04-23
Abstract
No abstract record available.
Inventors
- 👤 Keith S Rodaway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:39
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/16; H01F7/1638; H01H; H01H50/00; H01H50/16; H01H50/18; H01H50/20; H01H50/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
AN ALTERNATING CURRENT SOLENOID CONSTRUCTION INCLUDING: AN ELECTROMAGNETIC LAMINATED FIXED MEMBER HAVING AN ELECTRICAL WINDING CONSTITUTING A MAGNETIC FLUX-INDUCING MEANS, SAID FIXED MEMBER HAVING AT LEAST TWO PARALLEL LEGS SPACED FROM EACH OTHER AND CONSTITUTING MAGNETIC FLUX CARRYING MEMBERS, THE ENDS OF SAID LEGS DEFINING POLE PIECES; A RELATIVELY MOVABLE LAMINATED ARMATURE OPPOSING THE ENDS OF SAID LEGS; A HOUSING PROVIDING A DRY MOUNTING FOR SAID LAMINATED FIXED MEMBER AND PROVIDING A CHAMBER ENCLOSING SAID LAMINATED ARMATURE; POSITIONING MEANS FOR ALIGNING THE LAMINATIONS OF SAID ARMATURE WITH THE LAMINATIONS OF SAID FIXED MEMBER; AND A FLUID-TIGHT NON-MAGNETIC RIGID DIAPHRAGM OF HIGH RESISTIVITY HAVING OPENINGS TO RECEIVE SAID POLE PIECES IN SEALING RELATIONSHIP SO AS TO BE DISPOSED BETWEEN SAID FLUX-INDUCING MEANS AND SAID CHAMBER, SAID DIAPHRAGM BEING IN SEALED RELATION TO SAID CHAMBER AND SAID POLE PIECES BEING FUSED TO THE PERIPHERIES OF SAID OPENINGS AND EXPOSED ON THE CHAMBER SIDE OF SAID DIAPHRAGM TO ATTRACT AND BE ENGAGED BY SAID LAMINATED ARMATURE.
Claim 2
Dependent Claim
163 words
AN ALTERNATING CURRENT SOLENOID CONSTRUCTION INCLUDING: AN ELECTROMAGNETIC LAMINATED FIXED MEMBER HAVING AN ELECTRICAL WINDING CONSTITUTING A MAGNETIC FLUX-INDUCING MEANS, SAID FIXED MEMBER HAVING AT LEAST TWO PARALLEL LEGS SPACED FROM EACH OTHER AND CONSTITUTING MAGNETIC FLUX CARRYING MEMBERS, THE ENDS OF SAID LEGS DEFINING POLE PIECES; A RELATIVELY MOVABLE LAMINATED ARMATURE OPPOSING THE ENDS OF SAID LEGS; A HOUSING PROVIDING A DRY MOUNTING FOR SAID LAMINATED FIXED MEMBER AND PROVIDING A CHAMBER ENCLOSING SAID LAMINATED ARMATURE; POSITIONING MEANS FOR ALIGNING THE LAMINATIONS OF SAID ARMATURE WITH THE LAMINATIONS OF SAID FIXED MEMBER; AND A FLUID-TIGHT NON-MAGNETIC RIGID DIAPHRAGM OF HIGH RESISTIVITY HAVING OPENINGS TO RECEIVE SAID POLE PIECES IN SEALING RELATIONSHIP SO AS TO BE DISPOSED BETWEEN SAID FLUX-INDUCING MEANS AND SAID CHAMBER, SAID DIAPHRAGM BEING IN SEALED RELATION TO SAID CHAMBER AND SAID POLE PIECES BEING FUSED TO THE PERIPHERIES OF SAID OPENINGS AND EXPOSED ON THE CHAMBER SIDE OF SAID DIAPHRAGM TO ATTRACT AND BE ENGAGED BY SAID LAMINATED ARMATURE.
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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |