Patent US3651833A successfully refreshed from Google Patents.
US3651833A
Expired / Lapsed
US
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Electromagnetic valve
Assignee: Medicor Muvek
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Filing: 1970-05-08
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Granted: 1972-03-28
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Expires: 1990-05-08
Abstract
Abstract An electromagnetic valve has a valve member which is a core movable within a winding. The core remains deep in the winding and is spaced laterally from the interior of the winding and has a beveled seat where it emerges from the winding that engages with a beveled surface on the winding to locate the core in a closed position. The core has resilient valve seats at opposite ends to permit fluid switching, as in a logic circuit, with low amplitude of movement and with high sensitivity.
Inventors
- 👤 Zoltan Piko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:16
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0603; F16K31/0624; F16K31/0627; F15; F15C; F15C3/00; F15C3/02; F16K31/0606; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86622; Y10T137/86718; Y10T137/86759
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
141 words
An electromagnetic valve comprising an electromagnet having two ends and having a winding surrounding an axial recess in the electromagnet, a core movable coaxially within the recess, the magnet having an opening coaxially through one of said ends, said core in one position having one end that closes said opening and an opposite end that is disposed in the mouth of said recess at said other end of the electromagnet, a non-magnetic cover plate that closes the valve and which defines with the electromagnet a valve body within which the core is disposed, and a fluid inlet into the valve body, said core being spaced radially inwardly from said winding, said mouth of said recess having an endwise outward taper that contacts a complementary endwise outward taper on said opposite end of said core in said one position of said core.
Claim 2
Dependent Claim
141 words
An electromagnetic valve comprising an electromagnet having two ends and having a winding surrounding an axial recess in the electromagnet, a core movable coaxially within the recess, the magnet having an opening coaxially through one of said ends, said core in one position having one end that closes said opening and an opposite end that is disposed in the mouth of said recess at said other end of the electromagnet, a non-magnetic cover plate that closes the valve and which defines with the electromagnet a valve body within which the core is disposed, and a fluid inlet into the valve body, said core being spaced radially inwardly from said winding, said mouth of said recess having an endwise outward taper that contacts a complementary endwise outward taper on said opposite end of said core in said one position of said core.
Claim 3
Dependent Claim
14 words
A valve as claimed in claim 1, said inlet extending through said cover plate.
Claim 4
Dependent Claim
32 words
A valve as claimed in claim 1, and an opening through said cover plate which is closed by the core when the core is in a position other than said one position.
Claim 5
Dependent Claim
34 words
A valve as claimed in claim 1, said cover plate having a plurality of openings therethrough that are closed by the core when the core is in a position other than said one position.
References Cited (Backward Citations)
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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) | 1975-03-28 | 1975-09-27 | 1976-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-28 | 1979-09-27 | 1980-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-28 | 1983-09-27 | 1984-03-28 | $7700.00 | Window Closed / Lapsed |