Patent US3694777A successfully refreshed from Google Patents.
US3694777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compact electromagnetic relay
Assignee: Babcock Electronics Corp
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Filing: 1971-05-14
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Granted: 1972-09-26
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Expires: 1991-05-14
Abstract
Abstract A small compact relay comprises a contact assembly having a header which carries electrical connectors as well as relatively movable electrical contacts, and an electromagnetic operator having a frame member to which is secured one end of a core and whereon is mounted an electromagnetic winding, there being another frame member fixed to the other end of the core and having a pole portion extending adjacent the winding. An armature is pivotally mounted on the first mentioned frame member to provide an electromagnetic air gap with said pole member, and a return spring is mounted relative to said first mentioned frame to urge said armature in a given position relative to said pole member.
Inventors
- 👤 Michael Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:29
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/02; H01H50/04; H01H50/041; H01H50/043
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
180 words
In a compact electromagnetic relay, the combination of a contact assembly comprising a header having a plurality of electrical connectors and at least one pair of relatively movable contacts thereon, a mounting frame adapted to be secured to said header having a pair of relatively short support legs and an intermediate portion, a magnetic core having a first end portion fixed to the intermediate portion of said frame and a second end portion directed away from said header, an electromagnetic winding on said core, a frame member affixed to said second end of said core and having a pole portion adjacent said winding and terminating in a magnetic pole face, an armature pivotally mounted on said mounting frame legs for movement thereon relative to said pole face to thereby actuate said contacts, said legs being of minimum length to accommodate only said armature and said contact assembly between said header and the intermediate portion of said mounting frame, and spring means mounted relative to said mounting frame to urge said armature to a given position spaced from said pole face.
Claim 2
Dependent Claim
180 words
In a compact electromagnetic relay, the combination of a contact assembly comprising a header having a plurality of electrical connectors and at least one pair of relatively movable contacts thereon, a mounting frame adapted to be secured to said header having a pair of relatively short support legs and an intermediate portion, a magnetic core having a first end portion fixed to the intermediate portion of said frame and a second end portion directed away from said header, an electromagnetic winding on said core, a frame member affixed to said second end of said core and having a pole portion adjacent said winding and terminating in a magnetic pole face, an armature pivotally mounted on said mounting frame legs for movement thereon relative to said pole face to thereby actuate said contacts, said legs being of minimum length to accommodate only said armature and said contact assembly between said header and the intermediate portion of said mounting frame, and spring means mounted relative to said mounting frame to urge said armature to a given position spaced from said pole face.
Claim 3
Dependent Claim
38 words
In a highly compact electromagnetic relay, the combination according to claim 1, wherein said mounting frame is generally U-shaped having its support legs in spaced relation, said armature being pivotally mounted on said legs within said U-shaped configuration.
Claim 4
Dependent Claim
34 words
In a compact, electromagnetic relay, the combination according to claim 2, wherein said support legs are of minimum length to bridge said armature and contact assembly to thereby minimize vibration due to external forces.
Claim 5
Dependent Claim
144 words
In a compact electromagnetic relay, the combination of a contact assembly comprising a header having a plurality of electrical connectors and at least one pair of relatively movable contacts thereon, a mounting frame adapted to be secured to said header, a magnetic core having a first end portion fixed to said frame and a second end portion away from said header, an electromagnetic winding on said core, a frame member affixed to said second end of said core and having a pole portion adjacent said winding and terminating in a magnetic pole face, an armature pivotally mounted on said mounting frame for movement thereon relative to said pole face to thereby actuate said contacts, and a spring retainer on said core having a spring element formed therefrom to engage said armature to urge the same to a given position spaced from said pole face.
Claim 6
Dependent Claim
144 words
In a compact electromagnetic relay, the combination of a contact assembly comprising a header having a plurality of electrical connectors and at least one pair of relatively movable contacts thereon, a mounting frame adapted to be secured to said header, a magnetic core having a first end portion fixed to said frame and a second end portion away from said header, an electromagnetic winding on said core, a frame member affixed to said second end of said core and having a pole portion adjacent said winding and terminating in a magnetic pole face, an armature pivotally mounted on said mounting frame for movement thereon relative to said pole face to thereby actuate said contacts, and a spring retainer on said core having a spring element formed therefrom to engage said armature to urge the same to a given position spaced from said pole face.
Claim 7
Dependent Claim
50 words
In a compact electromagnetic relay, the combination according to claim 4, wherein said support legs of said mounting frame are formed with aligned openings, and mounting spheres are secured to said armature while movably positioned within said openings to thereby afford pivotal mounting for said armature on said mounting frame.
Claim 8
Dependent Claim
41 words
In a compact electromagnetic relay, the combination according to claim 5, wherein said electromagnetic winding and said spring retainer are firmly gripped between said mounting frame and frame member before said core is secured thereto to provide a compact, unitary structure.
Claim 9
Dependent Claim
29 words
In a compact electromagnetic relay, the combination according to claim 6, wherein said core is generally cylindrical to provide minimum reluctance for the magnetic flux generated by said winding.
Claim 10
Dependent Claim
31 words
In a compact electromagnetic relay, the combination according to claim 7, wherein said contacts and said electromagnetic winding are connected to separate ones of said electrical connectors of said contact assembly.
Claim 11
Dependent Claim
48 words
In a compact electromagnetic relay, the combination according to claim 8, wherein said U-shaped mounting frame has a portion intermediate said support legs, said intermediate portion and said pole face of said frame member being substantially coplanar with the spring element urging said armature to said given position.
Claim 12
Dependent Claim
63 words
In a compact electromagnetic relay, the combination according to claim 9, wherein said spring element is interposed between said intermediate portion of said mounting frame and said pole face of said frame member, the pivotal mounting for said armature being spaced from said spring element such that the latter creates frictional forces on said armature while moving the latter towards said given position.
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) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |