US3708768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Miniature relay
Assignee: Datron Systems Inc
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Filing: 1971-06-18
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Granted: 1973-01-02
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Expires: 1991-06-18
Abstract
Abstract A compact electromagnetic relay includes an operating coil disposed upon a core which is positioned above a magnetic header by magnetic and non-magnetic end supports. A balanced armature is located between the core and header, and pivots about an axis perpendicular to the axis of the core and parallel to the surface of the header when magnetically attracted by the said header and a pole end portion.
Inventors
- 👤 G Pratt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:09
CPC Classifications
H; H01; H01H; H01H51/00; H01H51/02; H01H51/04; H01H51/06
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
332 words
An electromagnetic relay comprising: a magnetically permeable core and an operating coil positioned upon said core for establishing magnetic flux in said core, first and second core legs joined respectively to said core beyond the ends of said coil and extending laterally to a first side of said core and coil, each of said legs being formed of magnetically permeable material and respectively including first and second opposed pole end portions extending back along said core, said pole end portions being offset with respect to one another so that the first pole end portion is father from said core, said first pole end portion comprising a header formed of magnetically permeable material, the first core leg being joined to said header so that said first core leg and said core are supported thereby, a balanced armature formed of magnetically permeable material pivoted for rotation with respect to an axis which is substantially perpendicular to the axis of said core and coil and displaced at said first side of said core and coil in nonintersecting relation thereto, and means also joined to said header for pivotally engaging said armature at the axis thereof to position the axis of said armature in substantially parallel relation to said header, the ends of said balanced armature on either side of the axis thereof extending adjacent said pole end portions such that a first end of said armature is located between a first pole end portion and said core while the second end of said armature is located on the remote side of the remaining pole end portion from said core, said Pole end portions being disposed in substantially parallel relation to said core and to the axis of said armature, and means for normally biasing said balanced armature to position the ends thereof in spaced relation with said pole end portions adapting the balanced armature for movement into engagement with said pole end portions for completing a magnetic circuit therewith upon energization of said operating coil.
Claim 2
Dependent Claim
332 words
An electromagnetic relay comprising: a magnetically permeable core and an operating coil positioned upon said core for establishing magnetic flux in said core, first and second core legs joined respectively to said core beyond the ends of said coil and extending laterally to a first side of said core and coil, each of said legs being formed of magnetically permeable material and respectively including first and second opposed pole end portions extending back along said core, said pole end portions being offset with respect to one another so that the first pole end portion is father from said core, said first pole end portion comprising a header formed of magnetically permeable material, the first core leg being joined to said header so that said first core leg and said core are supported thereby, a balanced armature formed of magnetically permeable material pivoted for rotation with respect to an axis which is substantially perpendicular to the axis of said core and coil and displaced at said first side of said core and coil in nonintersecting relation thereto, and means also joined to said header for pivotally engaging said armature at the axis thereof to position the axis of said armature in substantially parallel relation to said header, the ends of said balanced armature on either side of the axis thereof extending adjacent said pole end portions such that a first end of said armature is located between a first pole end portion and said core while the second end of said armature is located on the remote side of the remaining pole end portion from said core, said Pole end portions being disposed in substantially parallel relation to said core and to the axis of said armature, and means for normally biasing said balanced armature to position the ends thereof in spaced relation with said pole end portions adapting the balanced armature for movement into engagement with said pole end portions for completing a magnetic circuit therewith upon energization of said operating coil.
Claim 3
Dependent Claim
36 words
The relay according to claim 1 comprising contact means adjacent said armature and a contact means actuator carried by said armature for operating said contact means when said armature is drawn toward said pole end portions.
Claim 4
Dependent Claim
266 words
An electromagnetic relay comprising: a magnetically permeable core and an operating coil positioned upon said core for establishing magnetic flux in said core, first and second core legs joined respectively to said core beyond the ends of said coil and extending laterally to a first side of said core and coil, each of said legs being formed of magnetically permeable material and respectively including first and second opposed pole end portions extending back along said core, the first pole end portion comprising a header of magnetically permeable material joined to the first core leg so the core is supported thereby, a balanced armature formed of magnetically permeable material and means for pivotally supporting said armature about an axis of rotation disposed in substantially parallel relation to said header of magnetically permeable material, said axis being substantially perpendicular to the axis of said core and coil and displaced at said first side of said core and coil in non-intersecting relation thereto, the ends of said balanced armature on either side of the axis thereof extending adjacent said pole end portions such that a first end of said armature is located between a first pole end portion and said core while the second end of said armature is located on the remote side of the remaining pole end portion from said core, and means for normally biasing said balanced armature to position the ends thereof in spaced relation with said pole end portions adapting the balanced armature for movement into engagement with said pole end portions for completing a magnetic circuit therewith upon energization of said operating coil.
Claim 5
Dependent Claim
266 words
An electromagnetic relay comprising: a magnetically permeable core and an operating coil positioned upon said core for establishing magnetic flux in said core, first and second core legs joined respectively to said core beyond the ends of said coil and extending laterally to a first side of said core and coil, each of said legs being formed of magnetically permeable material and respectively including first and second opposed pole end portions extending back along said core, the first pole end portion comprising a header of magnetically permeable material joined to the first core leg so the core is supported thereby, a balanced armature formed of magnetically permeable material and means for pivotally supporting said armature about an axis of rotation disposed in substantially parallel relation to said header of magnetically permeable material, said axis being substantially perpendicular to the axis of said core and coil and displaced at said first side of said core and coil in non-intersecting relation thereto, the ends of said balanced armature on either side of the axis thereof extending adjacent said pole end portions such that a first end of said armature is located between a first pole end portion and said core while the second end of said armature is located on the remote side of the remaining pole end portion from said core, and means for normally biasing said balanced armature to position the ends thereof in spaced relation with said pole end portions adapting the balanced armature for movement into engagement with said pole end portions for completing a magnetic circuit therewith upon energization of said operating coil.
Claim 6
Dependent Claim
52 words
The relay according to claim 3 wherein said pole end portions are disposed in substantially parallel relation to said core and to the axis of said armature, and wherein said pole end portions are offset with respect to one another so that the first pole end portion is farther from said core.
Claim 7
Dependent Claim
118 words
The relay according to claim 3 wherein said balanced armature is in general facing relation to said core and coil, said armature comprising a central portion, provided with a pivot member defining the axis of said armature, a first end of the armature presenting a flat surface extending outwardly from said central portion on one side of said axis toward a said pole end portion, and the second end of said armature presenting a flat surface extending outwardly from said central portion on the remaining side of said axis toward the remaining pole end portion, said armature end surfaces being substantially parallel for engaging said pole end portions with rotation of said armature into a position parallel thereto.
Claim 8
Dependent Claim
72 words
The relay according to claim 3 wherein the second core leg end portion is positioned in spaced relation to said header to maintain the same spacing with respect to the second armature end as is maintained between the first armature end and said header in the non-operated condition of said relay, whereby energization of said operating coil moves said armature into substantial engagement with the second core end portion and said header.
Claim 9
Dependent Claim
31 words
The relay according to claim 6 wherein said balanced armature is positioned to present a first end thereof in parallel abutting relation to said header when said operating coil is energized.
Claim 10
Dependent Claim
28 words
The relay according to claim 6 wherein the second core leg is provided with a non-magnetic support extending from said second core leg and joined to said header.
Claim 11
Dependent Claim
46 words
The relay according to claim 3 comprising contact means adjacent said armature at a side thereof, and a contact means actuator carried by said armature and extending to the side thereof for operating said contact means when said armature is drawn toward said pole end portions.
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) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |