US3824511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic relay
Assignee: Siemens AG
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Filing: 1973-04-12
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Granted: 1974-07-16
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Expires: 1993-04-12
Abstract
Abstract Electromagnetic relay having a relatively thin insulating member as the base for the relay which forms a mounting for the electromagnet, armature and relay contacts. The contacts for the relay comprise a series of sets of contact springs. Each set of contact springs is spaced along the base and arranged on opposite sides of an acutator member for the contacts and made from insulating material. The contact springs are assembled in the insulating member by merely sliding the springs into position in the base with all of the contacts arranged in a common plane, to provide a relay which may be readily assembled and is of minimum height and has all of the parts of the relay mounted on the base and readily accessible.
Inventors
- 👤 M Aidn
- 👤 A Ruhland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:17
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/02; H01H50/04; H01H50/041; H01H50/042; H01H50/54; H01H50/56; H01H50/043; H01H2050/044
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
260 words
In a flat compact electromagnetic relay particularly adapted for circuit boards, an insulating member having a flat base, parallel side and end walls extending perpendicular to said base, a magnetic coil between said side walls at one end of said base and having an axis extending parallel to a plane top surface of said base, a yoke detachably supported on a side wall of said base and supporting said magnet coil to extend along one end of said base, a plurality of sets of contact springs spaced from said magnet coil along said base and extending from opposite side walls of said base toward the center of said base for movement in parallel relation with respect to the top plane surface of said base, an armature rockingly mounted on said yoke and extending along one end of said magnet coil, an actuator engaging said armature and movable in the plane of said base for moving said contact springs in certain predetermined positions, a single flat return spring at the opposite end of said base from said magnet coil and having operative connection with said actuator for returning said actuator and moving said contacts into certain other positions, the bottom surface of said base forming a connector side for said coil and for said contact springs and the side walls of said base forming insulated surfaces, the contact springs, actuator, armature, return spring and magnet coil being arranged adjacent each other with the operative parts parallel with the plane of the top surface of said base and movable in said plane.
Claim 2
Dependent Claim
260 words
In a flat compact electromagnetic relay particularly adapted for circuit boards, an insulating member having a flat base, parallel side and end walls extending perpendicular to said base, a magnetic coil between said side walls at one end of said base and having an axis extending parallel to a plane top surface of said base, a yoke detachably supported on a side wall of said base and supporting said magnet coil to extend along one end of said base, a plurality of sets of contact springs spaced from said magnet coil along said base and extending from opposite side walls of said base toward the center of said base for movement in parallel relation with respect to the top plane surface of said base, an armature rockingly mounted on said yoke and extending along one end of said magnet coil, an actuator engaging said armature and movable in the plane of said base for moving said contact springs in certain predetermined positions, a single flat return spring at the opposite end of said base from said magnet coil and having operative connection with said actuator for returning said actuator and moving said contacts into certain other positions, the bottom surface of said base forming a connector side for said coil and for said contact springs and the side walls of said base forming insulated surfaces, the contact springs, actuator, armature, return spring and magnet coil being arranged adjacent each other with the operative parts parallel with the plane of the top surface of said base and movable in said plane.
Claim 3
Dependent Claim
75 words
The electromagnetic relay of claim 1, wherein opposite side walls of said base have ribs extending inwardly therefrom having parallel slots therein forming attachment members for said contact springs, wherein windows lead from said slots through said base and electrical terminals extend from said contact springs through said slots to the solder side of the relay, and wherein a lug extends inwardly of one of said ribs and forms an attachment member for said yoke.
Claim 4
Dependent Claim
39 words
The electromagnetic relay of claim 2, in which the contact springs are L-shaped in plan and have a short leg extending through a slot and window and forming a terminal leg and a long leg forming a contact leg.
Claim 5
Dependent Claim
33 words
The electromagnetic relay of claim 3, in which the contact legs consist of a thin spring material and the solder legs are of a thicker material and have the contact legs welded thereto.
Claim 6
Dependent Claim
40 words
The electromagnetic relay of claim 4, in which the contact springs are fixed in said slots at their outer ends and extend parallel with each other and terminate at their inner ends in spaced relation with respect to each other.
Claim 7
Dependent Claim
76 words
The electromagnetic relay of claim 5, in which the contact springs are each in sets of three and comprise mobile contact springs facing each other and the actuator is arranged between said rows of contact springs and is made from an insulating material for shifting certain of said contact springs in one direction upon energization of said electromagnetic coil and in an opposite direction upon deenergization of said coil by the action of said return spring.
Claim 8
Dependent Claim
60 words
The electromagnetic relay of claim 6, including an angled armature having one leg extending along an end of said electromagnetic coil, a second leg at an angle to said one leg and extending along said yoke and having a fulcrum point on the end of said yoke effecting movement of said armature parallel to the basic plane of said base.
Claim 9
Dependent Claim
50 words
The electromagnetic relay of claim 7, in which the juncture of tHe legs of said armature rockable about said yoke on the inner sides thereof is relatively close to an associated rib on the outer side thereof retaining said armature in position on said yoke upon jarring of said relay.
Claim 10
Dependent Claim
82 words
The relay of claim 8, in which the lug extends inwardly of the rib, opposite the point of rocking movement of the armature, the yoke extends along the bottom of said lug, a contact extends along said lug through the bottom of said base and a screw secures said contact to one side of said lug and said yoke to the opposite side of said lug with said contact extending through said base and forming a ground terminal for said electromagnetic coil.
Claim 11
Dependent Claim
50 words
The electromagnetic relay according to claim 9, in which the side and end walls of said base have an outwardly opening recess extending about said side and end walls and in which a cover fits along said recess and forms a closure for said base and the electromagnetic contact system.
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) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |