Patent US4639628A successfully refreshed from Google Patents.
US4639628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Small size motor
Assignee: Nidec Instruments Corp
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Filing: 1984-07-19
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Granted: 1987-01-27
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Expires: 2004-07-19
Abstract
Abstract A small sized motor comprises a core formed with numbers of bent pole-teeth at the periphery of the core and a single-flanged coil bobbin with its drum portion fitted onto the core at the outer periphery of said pole teeth to form a first bobbin assembly. The small sized motor further comprises second associated bobbin assembly. The pair of bobbin assemblies are coupled together in a back-to-back fashion. A pair of lead wire holding members are coupled to the outer periphery of the bobbin flange and are openable at hinge portions for winding a coil wire onto the bobbin.
Inventors
- 👤 Toshiji Kobayashi
- 👤 Katsumi Matsumoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:33
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/46; H02K3/52; H02K3/521; H02K3/525; H02K21/00; H02K21/12; H02K21/14; H02K21/145; H02K2201/00; H02K2201/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A small motor, comprising, a core having a plurality of bent pole-teeth at a radial periphery thereof, a coil bobbin having at least one flange portion and a drum portion, said drum portion being fitted onto said core at the other periphery of said pole-teeth, lead wire holding means projecting from said flange portion and connected thereto by hinge portions at the outer periphery of said flange portion, said lead wire holding means connecting a wire wound on said coil bobbin to a lead wire, said hinge portions being formed at sides of said lead wire holding means so as to permit said lead wire holding means to pivot to a position generally axially displaced from a plane of said coil bobbin.
Claim 2
Dependent Claim
122 words
A small motor, comprising, a core having a plurality of bent pole-teeth at a radial periphery thereof, a coil bobbin having at least one flange portion and a drum portion, said drum portion being fitted onto said core at the other periphery of said pole-teeth, lead wire holding means projecting from said flange portion and connected thereto by hinge portions at the outer periphery of said flange portion, said lead wire holding means connecting a wire wound on said coil bobbin to a lead wire, said hinge portions being formed at sides of said lead wire holding means so as to permit said lead wire holding means to pivot to a position generally axially displaced from a plane of said coil bobbin.
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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) | 1990-01-26 | 1990-07-28 | 1991-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-26 | 1994-07-28 | 1995-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-26 | 1998-07-28 | 1999-01-27 | $7700.00 | Window Closed / Lapsed |