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US4540963A Expired / Lapsed US ⏱️ 0.0 years remaining

Relay with bridge contact spring

Assignee: Siemens AG
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Filing: 1984-11-08
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Granted: 1985-09-10
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Expires: 2004-11-08
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Abstract

Abstract An electrical relay assembly has a spring action bridge contact for engaging with two counter contact elements. The bridge contact is connected with an armature at one end of a longitudinal first section. The other end of the first section is connected to a linearly directed second section having two contact points facing opposite the counter contact elements. The first section has a lateral width not greater than the distance between the contact points. A lever action of the contact points about two different axes thereby results, as a consequence of which a frictional effect is produced at the contact points. The bridge contact is particularly applicable for the switching of low currents.

Inventors

  • 👤 Robert Esterl
  • 👤 Josef Weiser

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 11:10
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/12; H01H1/14; H01H1/18; H01H50/00; H01H50/54; H01H1/64; H01H1/645; H01H2001/145

Claims Analysis

Total Claims: 17
Claim 1
Independent Claim 196 words
An electrical relay assembly comprising an excitation coil means, an armature movable by operation of said excitation coil means, and a stationary counter contact means with two spaced-apart counter contact elements disposed in a plane, and a bridge contact means for controllably electrically bridging said counter contact elements in response to movement of said armature in one direction having a longitudinal first section fixed at one end of said armature and connected at the opposed end with a linearly directed second section, said second section having two contact points respectively disposed opposite said counter contact elements and offset from the longitudinal axis of said first section and said first section having a lateral width not greater than half the distance between said contact points such that said bridge contact means exhibits a first spring lever action along said first section and a second spring lever action along said second section when bridging said counter contact elements, wherein said second section is connected to said first section by an intermediate section laterally directed relative to said first section and the linear axis of said second section is substantially parallel to the longitudinal axis of said first section.
Claim 2
Dependent Claim 196 words
An electrical relay assembly comprising an excitation coil means, an armature movable by operation of said excitation coil means, and a stationary counter contact means with two spaced-apart counter contact elements disposed in a plane, and a bridge contact means for controllably electrically bridging said counter contact elements in response to movement of said armature in one direction having a longitudinal first section fixed at one end of said armature and connected at the opposed end with a linearly directed second section, said second section having two contact points respectively disposed opposite said counter contact elements and offset from the longitudinal axis of said first section and said first section having a lateral width not greater than half the distance between said contact points such that said bridge contact means exhibits a first spring lever action along said first section and a second spring lever action along said second section when bridging said counter contact elements, wherein said second section is connected to said first section by an intermediate section laterally directed relative to said first section and the linear axis of said second section is substantially parallel to the longitudinal axis of said first section.
Claim 3
Dependent Claim 26 words
The electrical relay assembly of claim 1, wherein said second section is made up of two spaced-apart bodies disposed at opposed ends of said intermediate section.
Claim 4
Dependent Claim 168 words
An electrical relay assembly comprising an excitation coil means, an armature movable by operation of said excitation coil means, and a stationary counter contact means with two spaced-apart counter contact elements disposed in a plane, and a bridge contact means for controllably electrically bridging said counter contact elements in response to movement of said armature in one direction having a longitudinal first section fixed at one end to said armature and connected at the opposed end with a linearly directed second section, said second section having two contact points respectively disposed opposite said counter contact elements and offset from the longitudinal axis of said first section and said first section having a lateral width not greater than half the distance between said contact points such that said bridge contact means exhibits a first spring lever action along said first section and a second spring lever action along said second section when bridging said counter contact elements, wherein said first section is formed with laterally directed cut-out spaces therealong.
Claim 5
Dependent Claim 168 words
An electrical relay assembly comprising an excitation coil means, an armature movable by operation of said excitation coil means, and a stationary counter contact means with two spaced-apart counter contact elements disposed in a plane, and a bridge contact means for controllably electrically bridging said counter contact elements in response to movement of said armature in one direction having a longitudinal first section fixed at one end to said armature and connected at the opposed end with a linearly directed second section, said second section having two contact points respectively disposed opposite said counter contact elements and offset from the longitudinal axis of said first section and said first section having a lateral width not greater than half the distance between said contact points such that said bridge contact means exhibits a first spring lever action along said first section and a second spring lever action along said second section when bridging said counter contact elements, wherein said first section is formed with laterally directed cut-out spaces therealong.
Claim 6
Dependent Claim 28 words
The electrical relay assembly of claim 3, wherein said two contact points are disposed on a single contact body extending along the linear length of said second section.
Claim 7
Dependent Claim 170 words
An electrical relay assembly comprising an excitation coil means, an armature movable by operation of said excitation coil means, and a stationary counter contact means with two spaced-apart counter contact elements disposed in a plane, and a bridge contact means for controllably electrically bridging said counter contact elements in response to movement of said armature in one direction having a longitudinal first section fixed at one end to said armature and connected at the opposed end with a linearly directed second section, said second section having two contact points respectively disposed opposite said counter contact elements and offset from the longitudinal axis of said first section and said first section having a lateral width not greater than half the distance between said contact points such that said bridge contact means exhibits a first spring lever action along said first section and a second spring lever action along said second section when bridging said counter contact elements, wherein said counter contact elements are disposed one above the other in said plane.
Claim 8
Dependent Claim 170 words
An electrical relay assembly comprising an excitation coil means, an armature movable by operation of said excitation coil means, and a stationary counter contact means with two spaced-apart counter contact elements disposed in a plane, and a bridge contact means for controllably electrically bridging said counter contact elements in response to movement of said armature in one direction having a longitudinal first section fixed at one end to said armature and connected at the opposed end with a linearly directed second section, said second section having two contact points respectively disposed opposite said counter contact elements and offset from the longitudinal axis of said first section and said first section having a lateral width not greater than half the distance between said contact points such that said bridge contact means exhibits a first spring lever action along said first section and a second spring lever action along said second section when bridging said counter contact elements, wherein said counter contact elements are disposed one above the other in said plane.
Claim 9
Dependent Claim 265 words
An electrical relay assembly comprising an excitation coil means, an armature movable by operation of said excitation coil means, and a stationary counter contact means with two spaced-apart counter contact elements disposed in a plane, and a bridge contact means for controllably electrically bridging said counter contact elements in response to movement of said armature in one direction having a longitudinal first section fixed at one end to said armature and connected at the opposed end with a linearly directed second section, said second section having two contact points respectively disposed opposite said counter contact elements and offset from the longitudinal axis of said first section and said first section having a lateral width not greater than half the distance between said contact points such that said bridge contact means exhibits a first spring lever action along said first section and a second spring lever action along said second section when bridging said counter contact elements, wherein said coil means and armature have parallel linear axes, said first section extending over said armature perpendicular to the linear axis of said armature extending from a terminal lug up one lateral side of said armature and across the top of said armature toward the opposite lateral side of said armature and said counter contact elements respectively extending up opposed front and back sides of said coil means perpendicular to the linear axis thereof and bending over in opposite directions above said coil means and apart from said opposite lateral side of said armature to terminate in portions directed parallel to the linear axis of said coil means.
Claim 10
Dependent Claim 265 words
An electrical relay assembly comprising an excitation coil means, an armature movable by operation of said excitation coil means, and a stationary counter contact means with two spaced-apart counter contact elements disposed in a plane, and a bridge contact means for controllably electrically bridging said counter contact elements in response to movement of said armature in one direction having a longitudinal first section fixed at one end to said armature and connected at the opposed end with a linearly directed second section, said second section having two contact points respectively disposed opposite said counter contact elements and offset from the longitudinal axis of said first section and said first section having a lateral width not greater than half the distance between said contact points such that said bridge contact means exhibits a first spring lever action along said first section and a second spring lever action along said second section when bridging said counter contact elements, wherein said coil means and armature have parallel linear axes, said first section extending over said armature perpendicular to the linear axis of said armature extending from a terminal lug up one lateral side of said armature and across the top of said armature toward the opposite lateral side of said armature and said counter contact elements respectively extending up opposed front and back sides of said coil means perpendicular to the linear axis thereof and bending over in opposite directions above said coil means and apart from said opposite lateral side of said armature to terminate in portions directed parallel to the linear axis of said coil means.
Claim 11
Dependent Claim 37 words
The electrical relay assembly of claim 6, wherein said coil means has a U-shaped core with said armature being mounted on one free leg of said U and freely overlying the other free leg of said U.
Claim 12
Dependent Claim 28 words
The electrical relay assembly of claim 7, wherein an intermediate insulating piece overlies said armature, said first section resting on said insulating piece for connection with said armature.
Claim 13
Dependent Claim 17 words
The electrical relay assembly of claim 8, wherein said insulating piece is an embedding of said armature.
Claim 14
Dependent Claim 60 words
The electrical relay assembly of claim 8, wherein said insulating piece has a flexible leg portion extending down said one lateral side of said armature, parallel to said first section therealong, with a lower free end engaged against a relatively offset tongue portion of said first section, such that said leg portion acts as a reset spring for said armature.
Claim 15
Dependent Claim 47 words
The electrical relay assembly of claim 7, wherein a flange means extending about said other free leg of said U defines a chamber between and beneath said bent over portions of said counter contact elements, said chamber having sidewalls with lamellar projections and accomodating a getter means.
Claim 16
Dependent Claim 26 words
The electrical relay assembly of claim 6, wherein said armature is disposed intermediate of said coil means within an axial cavity defined by said coil means.
Claim 17
Dependent Claim 40 words
The electrical relay assembly of claim 6, further comprising a housing cover extending over said armature and formed with an interiorly directed stop portion for limiting movement of said armature and first section in the direction opposite said one direction.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-09-09 1989-03-11 1989-09-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-09-09 1993-03-11 1993-09-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-09-09 1997-03-11 1997-09-10 $7700.00 Window Closed / Lapsed

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