US3859547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-position solenoid with latching or nonlatching capability
Assignee: Individual
•
Filing: 1973-08-20
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Granted: 1975-01-07
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Expires: 1993-08-20
Abstract
Abstract A multi-position latching or nonlatching solenoid comprises a magnetic core with opposed salient stator poles having windings. A ferro-magnetic armature is mounted to reciprocate between the salient poles. A permanent magnet is associated with the core and armature. The two salient poles provide two latching positions. Improvement is provided by way of one or more additional pairs of salient stator poles with associated windings. Each additional pair of stator poles provides one additional latched position. Five or more latched positions can be provided. Simple variations in the construction make it possible to provide either plural latched or unlatched positions or a combination of plural latched and unlatched positions.
Inventors
- 👤 Philip E Massie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:16
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/16; H01F7/1607; H01F7/1615
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
138 words
In a magnetic device in combination: means comprising a magnetic core member having salient stator poles having windings associated therewith; an armature positioned for reciprocating between said salient poles; and a permanent magnet carried by said core and associated with the armature whereby energization of alternate windings will cause the armature to reciprocate, the improvement comprising the armature having symmetrical salient poles, and said core having at least one additional salient stator pole and winding, said armature poles and additional salient stator pole being relatively positioned whereby to establish at least one additional intermediate position of said armature established by said additional salient stator pole, the relationship of said armature and core poles and said windings being such that said armature may be moved directly from any one position to any other position without stepping through intermediate positions.
Claim 2
Dependent Claim
138 words
In a magnetic device in combination: means comprising a magnetic core member having salient stator poles having windings associated therewith; an armature positioned for reciprocating between said salient poles; and a permanent magnet carried by said core and associated with the armature whereby energization of alternate windings will cause the armature to reciprocate, the improvement comprising the armature having symmetrical salient poles, and said core having at least one additional salient stator pole and winding, said armature poles and additional salient stator pole being relatively positioned whereby to establish at least one additional intermediate position of said armature established by said additional salient stator pole, the relationship of said armature and core poles and said windings being such that said armature may be moved directly from any one position to any other position without stepping through intermediate positions.
Claim 3
Dependent Claim
33 words
A structure as in claim 1, wherein said poles and windings are related in a way whereby the armature latches in each position by means of a flux circuit including said permanent magnet.
Claim 4
Dependent Claim
32 words
A structure as in claim 1, wherein said additional salient stator poles is of cylindrical form having a winding thereon, the armature being configurated to pass through said additional salient stator pole.
Claim 5
Dependent Claim
62 words
A structure as in claim 1, whrein said armature is provided with a plurality of symmetrical pairs of salient poles, said core having a corresponding plurality of additional pairs of salient stator poles having windings, said salient poles of the armature and said salient poles of the core being so positioned relatively as to establish additional, plural, predetermined positions of the armature.
Claim 6
Dependent Claim
29 words
A structure as in claim 4, wherein said poles and windings are so related as respects magnetomotive force generated that the armature latches in each of its relative positions.
Claim 7
Dependent Claim
55 words
A device as in claim 1, wherein the armature has a single pair of symmetrical, salient poles, and said core has a single, corresponding additional pair of salient stator poles having windings, said poles being so positioned in the device as to produce a single, additional, intermediate position which is midway between two end positions.
Claim 8
Dependent Claim
18 words
A device as in claim 1, wherein said core member has annular recesses having said windings positioned therein.
Claim 9
Dependent Claim
21 words
A device as in claim 1, wherein said salient armature poles are in the form of disc flanges on the armature.
Claim 10
Dependent Claim
108 words
In a magnetic device, in combination, a magnetic core member having salient stator poles having windings associated therewith; an armature positioned for reciprocation between said salient poles; a permanent magnet associated with the core and armature whereby energization of alternate windings will cause the armature to reciprocate, the improvement comprising the armature having an additional salient poles intermediate its ends, said core having an additional salient stator pole positioned relatively to said armature pole to cooperate therewith and having a winding, nonmagnetic elements positioned in the air gaps between said first salient stator poles and the armature whereby the armature has at least three positions which are nonlatching.
Claim 11
Dependent Claim
108 words
In a magnetic device, in combination, a magnetic core member having salient stator poles having windings associated therewith; an armature positioned for reciprocation between said salient poles; a permanent magnet associated with the core and armature whereby energization of alternate windings will cause the armature to reciprocate, the improvement comprising the armature having an additional salient poles intermediate its ends, said core having an additional salient stator pole positioned relatively to said armature pole to cooperate therewith and having a winding, nonmagnetic elements positioned in the air gaps between said first salient stator poles and the armature whereby the armature has at least three positions which are nonlatching.
Claim 12
Dependent Claim
148 words
In a magnetic device, in combination: a magnetic core member having spaced opposed end polEs and a winding on each end pole; an elongated armature having end pole faces and mounted for longitudinal reciprocation between said end poles; a permanent magnet carried by said core member to provide a magnetic flux in said core and armature; said core member having at least one pair of poles intermediate said end poles and windings associated therewith; and said armature having at least one pair of salient poles thereon intermediate the ends thereof which are opposed to said intermediate poles of said core in an intermediate position of said armature wherein the reluctance between said opposed poles is less than the reluctance between any other poles on said armature and core whereby energization of any selected windings moves said armature directly to only a corresponding position irrespective of its previous position.
Claim 13
Dependent Claim
148 words
In a magnetic device, in combination: a magnetic core member having spaced opposed end polEs and a winding on each end pole; an elongated armature having end pole faces and mounted for longitudinal reciprocation between said end poles; a permanent magnet carried by said core member to provide a magnetic flux in said core and armature; said core member having at least one pair of poles intermediate said end poles and windings associated therewith; and said armature having at least one pair of salient poles thereon intermediate the ends thereof which are opposed to said intermediate poles of said core in an intermediate position of said armature wherein the reluctance between said opposed poles is less than the reluctance between any other poles on said armature and core whereby energization of any selected windings moves said armature directly to only a corresponding position irrespective of its previous position.
Claim 14
Dependent Claim
51 words
A device as in claim 1, said salient stator poles and said armature salient poles being so positioned that in said intermediate position, the stator and armature poles are juxtaposed in such a way as to concentrate flux in the juxtaposed poles in a manner to realize discrete individual unambiquous position.
Claim 15
Dependent Claim
29 words
A device as in claim 1, wherein the core has at least one salient stator pole in the form of a radially extending member having a winding around it.
Claim 16
Dependent Claim
21 words
A device as in claim 11, wherein the core has an additional pair of salient poles which are of annular configuration.
Claim 17
Dependent Claim
41 words
A device as in claim 11, including an additional pair of windings associated with said additional pair of core salient poles intermediate the end poles positioned to concentrate flux in the associated poles and to shield flux from parallel air gaps.
Claim 18
Dependent Claim
27 words
A device as in claim 10 wherein the permanent magnet has relationship to the armature poles and core poles to provide latching flux in each armature position.
Claim 19
Dependent Claim
33 words
A device as in claim 15 wherein the core has plural intermediate pairs of poles and the armature has plural intermediate pairs of poles cooperable with core poles to establish plural armature positions.
References Cited (Backward Citations)
US3135880A
Cited
US3070730A
Cited
US3119940A
Cited
US3130331A
Cited
US3202886A
Cited
US3453510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |