Patent US1863004A successfully refreshed from Google Patents.
US4456844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submergible motor construction
Assignee: Mitsubishi Electric Corp
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Filing: 1983-10-27
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Granted: 1984-06-26
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Expires: 2003-10-27
Abstract
Abstract A mold type motor comprises a molded resin frame covering the surfaces of a stator iron core and a coil end and molded resin brackets detachably fitted on the end openings of the molded resin frame wherein a surge absorber unit is embedded in the molded resin frame and is electrically connected to a grounding element.
Inventors
- 👤 Sakuei Yamamoto
- 👤 Mitsuhiro Nishida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:36
CPC Classifications
H; H02; H02K; H02K11/00; H02K11/40; H02K11/20; H02K11/26; H02K11/30; H02K11/33
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
89 words
In a mold type motor comprising a molded resin frame covering the surfaces of a stator iron core and a coil end and molded resin brackets detachably fitted on the end openings of said molded resin frame, an improvement which comprises a surge absorber unit including a pair of surge absorber members each constructed of a plural layer of voltage dependent resistor elements, wherein said surge absorber unit is embedded in said molded resin frame with an electrical connection to a ground terminal embedded in said molded resin frame.
Claim 2
Dependent Claim
89 words
In a mold type motor comprising a molded resin frame covering the surfaces of a stator iron core and a coil end and molded resin brackets detachably fitted on the end openings of said molded resin frame, an improvement which comprises a surge absorber unit including a pair of surge absorber members each constructed of a plural layer of voltage dependent resistor elements, wherein said surge absorber unit is embedded in said molded resin frame with an electrical connection to a ground terminal embedded in said molded resin frame.
Claim 3
Dependent Claim
89 words
In a mold type motor comprising a molded resin frame covering the surfaces of a stator iron core and a coil end and molded resin brackets detachably fitted on the end openings of said molded resin frame, an improvement which comprises a surge absorber unit including a pair of surge absorber members each constructed of a plural layer of voltage dependent resistor elements, wherein said surge absorber unit is embedded in said molded resin frame with an electrical connection to a ground terminal embedded in one of said brackets.
Claim 4
Dependent Claim
89 words
In a mold type motor comprising a molded resin frame covering the surfaces of a stator iron core and a coil end and molded resin brackets detachably fitted on the end openings of said molded resin frame, an improvement which comprises a surge absorber unit including a pair of surge absorber members each constructed of a plural layer of voltage dependent resistor elements, wherein said surge absorber unit is embedded in said molded resin frame with an electrical connection to a ground terminal embedded in one of said brackets.
Claim 5
Dependent Claim
95 words
In a mold type motor comprising a molded resin frame covering the surfaces of a stator iron core and a coil end and molded resin brackets detachably fitted on the end openings of said molded resin frame, an improvement which comprises a surge absorber unit including a pair of surge absorber members each constructed of a plural layer of voltage dependent resistor elements, wherein said surge absorber unit is embedded in said molded resin frame with an electrical connection to at least one screw socket for holding a fastening bolt for one of said brackets.
Claim 6
Dependent Claim
95 words
In a mold type motor comprising a molded resin frame covering the surfaces of a stator iron core and a coil end and molded resin brackets detachably fitted on the end openings of said molded resin frame, an improvement which comprises a surge absorber unit including a pair of surge absorber members each constructed of a plural layer of voltage dependent resistor elements, wherein said surge absorber unit is embedded in said molded resin frame with an electrical connection to at least one screw socket for holding a fastening bolt for one of said brackets.
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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) | 1987-06-26 | 1987-12-26 | 1988-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-26 | 1991-12-26 | 1992-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-26 | 1995-12-26 | 1996-06-26 | $7700.00 | Window Closed / Lapsed |