Patent US3861644A successfully refreshed from Google Patents.
US3861644A
Expired / Lapsed
US
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Solenoid valve
Assignee: Motors Liquidation Co
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Filing: 1973-10-09
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Granted: 1975-01-21
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Expires: 1993-10-09
Abstract
Abstract A solenoid-operated valve intended primarily to exert a force closely proportional to energizing current and particularly adapted for use in fluid pressure and flow controlling systems. The device includes an annular housing of magnetic material enclosing a nonmagnetic bobbin on which a coil is wound. An armature reciprocable within the bobbin in proximity to a pole piece of the housing exerts a force on a ball which seats at the end of an axial bore extending through the pole piece. The controlled fluid may communicate with the interior of the bobbin; one end of the bobbin is closed and the other end is sealed to the housing so that the fluid may not escape from the device. The fluid circuit through the valve is completed through holes in the pole piece.
Inventors
- 👤 Richard S Knape
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:04
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0644; F16K31/0655; F16K31/0665
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
163 words
An electromagnetic valve device comprising, in combination, a housing; a pole piece abutting the housing including a first hollow boss extending into the housing and a second hollow boss extending from the housing; an annular bobbin fixed in the housing; a solenoid on the bobbin; an armature reciprocably guided within the bobbin, the armature and the first boss having confronting portions defining an air gap; means providing a fluid seal between the bobbin and the pole piece; the housing, pole piece, and armature being of a magnetic material and the bobbin being non-magnetic; the bosses defining a fluid inlet passage terminating in an annular seat at the inner end of the first boss; and a movable valve closure member disposed adjacent the seat and biasable against the seat by energization of the solenoid; a fluid outlet passage extending along the exterior of the first boss bounded by the first boss and the bobbin; the pole piece defining an outlet from the outlet passage.
Claim 2
Dependent Claim
163 words
An electromagnetic valve device comprising, in combination, a housing; a pole piece abutting the housing including a first hollow boss extending into the housing and a second hollow boss extending from the housing; an annular bobbin fixed in the housing; a solenoid on the bobbin; an armature reciprocably guided within the bobbin, the armature and the first boss having confronting portions defining an air gap; means providing a fluid seal between the bobbin and the pole piece; the housing, pole piece, and armature being of a magnetic material and the bobbin being non-magnetic; the bosses defining a fluid inlet passage terminating in an annular seat at the inner end of the first boss; and a movable valve closure member disposed adjacent the seat and biasable against the seat by energization of the solenoid; a fluid outlet passage extending along the exterior of the first boss bounded by the first boss and the bobbin; the pole piece defining an outlet from the outlet passage.
Claim 3
Dependent Claim
200 words
An electromagnetic valve device comprising, in combination, a housing; a pole piece abutting the housing including a first hollow boss extending into the housing and a second hollow boss extending from the housing; an annular bobbin fixed in the housing; a solenoid on the bobbin; an armature reciprocably guided within the bobbin; the armature and the first boss having confronting portions defining an air gap; and means providing a fluid seal between one end of the bobbin and the pole piece; means closing the other end of the bobbin; the armature having sufficient clearance from the pole piece and bobbin for displacement of fluid upon reciprocation thereof; the housing, pole piece, and armature being of a magnetic material and the bobbin being nonmagnetic; the bosses defining a fluid inlet passage terminating in an annular seat at the inner end of the first boss; and a movable spherical valve closure member disposed adjacent the seat between the armature and first boss and biasable against the seat by energization of the solenoid; a fluid outlet passage extending along the exterior of the first boss bounded by the first boss anD the bobbin; the pole piece defining an outlet from the outlet passage.
Claim 4
Dependent Claim
200 words
An electromagnetic valve device comprising, in combination, a housing; a pole piece abutting the housing including a first hollow boss extending into the housing and a second hollow boss extending from the housing; an annular bobbin fixed in the housing; a solenoid on the bobbin; an armature reciprocably guided within the bobbin; the armature and the first boss having confronting portions defining an air gap; and means providing a fluid seal between one end of the bobbin and the pole piece; means closing the other end of the bobbin; the armature having sufficient clearance from the pole piece and bobbin for displacement of fluid upon reciprocation thereof; the housing, pole piece, and armature being of a magnetic material and the bobbin being nonmagnetic; the bosses defining a fluid inlet passage terminating in an annular seat at the inner end of the first boss; and a movable spherical valve closure member disposed adjacent the seat between the armature and first boss and biasable against the seat by energization of the solenoid; a fluid outlet passage extending along the exterior of the first boss bounded by the first boss anD the bobbin; the pole piece defining an outlet from the outlet passage.
Claim 5
Dependent Claim
226 words
An electromagnetic valve device comprising, in combination, a housing; a pole piece abutting the housing including a first hollow boss extending into the housing and a second hollow boss extending from the housing; an annular bobbin in the housing piloted at the end of the bobbin adjacent the pole piece on the housing, the bobbin including a portion providing a pilot connection between the other end of the bobbin and the housing; means closing the said other end of the bobbin against escape of fluid; a solenoid on the bobbin; an armature reciprocably guided within the bobbin, the armature and the first boss having confronting portions defining an air gap; means providing a fluid seal between the bobbin and the pole piece; the armature having sufficient clearance from the pole piece and bobbin for flow of fluid upon reciprocation thereof; the housing, pole piece, and armature being of a magnetic material and the bobbin being nonmagnetic; the bosses defining a fluid inlet passage terminating in an annular seat at the inner end of the first boss; and a movable valve closure member disposed adjacent the seat and biasable against the seat by energization of the solenoid; a fluid outlet passage extending along the exterior of the first boss bounded by the first boss and the bobbin; the pole piece defining an outlet from the outlet passage.
Claim 6
Dependent Claim
226 words
An electromagnetic valve device comprising, in combination, a housing; a pole piece abutting the housing including a first hollow boss extending into the housing and a second hollow boss extending from the housing; an annular bobbin in the housing piloted at the end of the bobbin adjacent the pole piece on the housing, the bobbin including a portion providing a pilot connection between the other end of the bobbin and the housing; means closing the said other end of the bobbin against escape of fluid; a solenoid on the bobbin; an armature reciprocably guided within the bobbin, the armature and the first boss having confronting portions defining an air gap; means providing a fluid seal between the bobbin and the pole piece; the armature having sufficient clearance from the pole piece and bobbin for flow of fluid upon reciprocation thereof; the housing, pole piece, and armature being of a magnetic material and the bobbin being nonmagnetic; the bosses defining a fluid inlet passage terminating in an annular seat at the inner end of the first boss; and a movable valve closure member disposed adjacent the seat and biasable against the seat by energization of the solenoid; a fluid outlet passage extending along the exterior of the first boss bounded by the first boss and the bobbin; the pole piece defining an outlet from the outlet passage.
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) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |