Patent US4882558A successfully refreshed from Google Patents.
US4882558A
Expired / Lapsed
US
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Solenoid assembly
Assignee: Aisin Corp
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Filing: 1989-02-21
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Granted: 1989-11-21
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Expires: 2009-02-21
Abstract
Abstract A solenoid assembly includes a coil bobbin having a pair of hooks extending in the longitudinal direction of the bobbin from a flange formed on one end of the bobbin and projecting radially outwardly from the axis of the bobbin at the ends thereof. A magnetic yoke having openings for receiving the hooks and a grommet having a base portion in contact with the magnetic yoke are seucred together by the hooks. The grommet has a neck portion extending in the axial direction of a magnetic core and a central opening for a lead wire to a coil on the bobbin. The magnetic yoke is fixed to one end of the magnetic core which is located in a central opening formed in the coil bobbin. A plastic casing is then molded about the entire assembly.
Inventors
- 👤 Makoto Takayanagi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:49
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/16; H01F7/1607
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
191 words
A solenoid assembly comprising: a magnetic core; a coil bobbin having a longitudinal axis and hook means thereon extending in the longitudinal direction of the bobbin axis from a flange formed on one end thereof with an end portion of said hook means projecting radially outwardly from said axis; said bobbin having a central bore with at least a portion of said core disposed therein and a coil wound around said bobbin; a magnetic yoke connected to said core and partially surrounding said coil and having opening means through which said hook means extend; a magnetic plunger movably disposed in said bore adjacent said core; a grommet having a base portion disposed in contact with said yoke and engaged by said hook means and a neck portion extending along the axis of said bobbin away from said base portion and having an opening for a lead wire in said neck portion; a lead wire extending through said opening of said neck portion and connected to one end of said coil; and a casing made of plastic molded in situ and covering said grommet and an exterior portion of said yoke continuously.
Claim 2
Dependent Claim
191 words
A solenoid assembly comprising: a magnetic core; a coil bobbin having a longitudinal axis and hook means thereon extending in the longitudinal direction of the bobbin axis from a flange formed on one end thereof with an end portion of said hook means projecting radially outwardly from said axis; said bobbin having a central bore with at least a portion of said core disposed therein and a coil wound around said bobbin; a magnetic yoke connected to said core and partially surrounding said coil and having opening means through which said hook means extend; a magnetic plunger movably disposed in said bore adjacent said core; a grommet having a base portion disposed in contact with said yoke and engaged by said hook means and a neck portion extending along the axis of said bobbin away from said base portion and having an opening for a lead wire in said neck portion; a lead wire extending through said opening of said neck portion and connected to one end of said coil; and a casing made of plastic molded in situ and covering said grommet and an exterior portion of said yoke continuously.
Claim 3
Dependent Claim
20 words
A solenoid assembly of claim 1, further comprising valve means disposed in said casing in operative relation with said plunger.
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) | 1992-11-20 | 1993-05-22 | 1993-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-20 | 1997-05-22 | 1997-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-20 | 2001-05-22 | 2001-11-21 | $7700.00 | Window Closed / Lapsed |