US3571546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact member
Assignee: Texas Instruments Inc
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Filing: 1968-12-19
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Granted: 1971-03-23
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Expires: 1988-12-19
Abstract
Abstract An electrical contact member including an electrical contact and a contact support which are secured together by welding, soldering or the like to form an interface between the contact and support. The contact member is mechanically reinforced along the edge of this interface between the contact and support to retard separation of the contact and support at the interface edge during use of the contact member.
Inventors
- 👤 Charles D Sedlak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:39
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/001; B23K35/007; H; H01; H01H; H01H1/00; H01H1/02; H01H1/021; H01H1/023; H01H1/0231
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
65 words
A contact member comprising a contact support and contact means secured to said support throughout the interface between said contact means and support, at least one of said contact member components having portions adjacent an edge of said interface compressively stressed reinforcing said contact members to retard separation of said contact means from said support at said interface edge during use of said contact member.
Claim 2
Dependent Claim
65 words
A contact member comprising a contact support and contact means secured to said support throughout the interface between said contact means and support, at least one of said contact member components having portions adjacent an edge of said interface compressively stressed reinforcing said contact members to retard separation of said contact means from said support at said interface edge during use of said contact member.
Claim 3
Dependent Claim
134 words
A contact member comprising an electrically conductive metallic arm and an electrical contact secured in electrically conductive relation to a surface of said arm forming an interface between said contact and arm, said contact secured to said arm surface adjacent an edge of said arm surface disposing a contact surface in generally parallel relation to said arm surface and disposing an edge of said interface between said contact and arm at a lateral portion of said contact member, at least one of said contact member components being deformed at said lateral portion of said contact member establishing compressive stresses in said contact member at said edge of said interface reinforcing said contact member to retard separation of said contact from said arm at said edge of said interface during use of said contact member.
Claim 4
Dependent Claim
134 words
A contact member comprising an electrically conductive metallic arm and an electrical contact secured in electrically conductive relation to a surface of said arm forming an interface between said contact and arm, said contact secured to said arm surface adjacent an edge of said arm surface disposing a contact surface in generally parallel relation to said arm surface and disposing an edge of said interface between said contact and arm at a lateral portion of said contact member, at least one of said contact member components being deformed at said lateral portion of said contact member establishing compressive stresses in said contact member at said edge of said interface reinforcing said contact member to retard separation of said contact from said arm at said edge of said interface during use of said contact member.
Claim 5
Dependent Claim
33 words
A contact member as set forth in claim 2 wherein a surface portion of said contact at said lateral portion of said contact member is smooth and compressively stressed adjacent said interfacial edge.
Claim 6
Dependent Claim
52 words
A contact member as set forth in claim 2 wherein said contact surface which is generally parallel to said arm surface is compressively indented at an edge of said contact surface extending along said lateral portion of said contact member establishing compressive stresses in said contact at said edge of said interface.
Claim 7
Dependent Claim
41 words
A contact member as set forth in claim 2 wherein said contact is compressively grooved at said lateral portion of said contact member adjacent said edge of said interface establishing compressive stresses in said contact at said edge of said interface.
Claim 8
Dependent Claim
41 words
A contact member as set forth in claim 2 wherein said arm is compressively grooved at said lateral portion of said contact member adjacent said edge of said interface establishing compressive stresses in said arm at said edge of said interface.
Claim 9
Dependent Claim
46 words
A contact member as set forth in claim 2 wherein said contact and arm are compressively grooved at said lateral portion of said contact member adjacent to said edge of said interface establishing compressive stresses in said contact and arm at said edge of said interface.
Claim 10
Dependent Claim
39 words
A contact member as set forth in claim 7 wherein said lateral portion of said contact member is knurled forming a plurality of deformed and compressively stressed portions of said contact and arm at said edge of said interface.
Claim 11
Dependent Claim
179 words
A contact member comprising an electrically conductive metallic arm, an electrical contact embodying a layer of silver-cadmium-oxide material metallurgically bonded to a layer of silver, said contact soldered to a surface of said arm by means of a layer of solder adherent to said silver layer of said contact forming an interface between said contact and arm, said contact soldered to said arm surface adjacent an edge of said arm surface disposing a contact surface in generally parallel relation to said arm surface and disposing said edge of said interface between said contact and arm at a lateral portion of said contact member, at least one of said cOntact member components deformed at said lateral portion of said contact member establishing compressive stresses in said member at said edge of said interface reinforcing said contact member to retard separation of said contact from said arm at said edge of said interface during use of said contact member, said silver layer of said contact and said solder layer reduced in thickness by said deformation at said edge of said interface.
Claim 12
Dependent Claim
179 words
A contact member comprising an electrically conductive metallic arm, an electrical contact embodying a layer of silver-cadmium-oxide material metallurgically bonded to a layer of silver, said contact soldered to a surface of said arm by means of a layer of solder adherent to said silver layer of said contact forming an interface between said contact and arm, said contact soldered to said arm surface adjacent an edge of said arm surface disposing a contact surface in generally parallel relation to said arm surface and disposing said edge of said interface between said contact and arm at a lateral portion of said contact member, at least one of said cOntact member components deformed at said lateral portion of said contact member establishing compressive stresses in said member at said edge of said interface reinforcing said contact member to retard separation of said contact from said arm at said edge of said interface during use of said contact member, said silver layer of said contact and said solder layer reduced in thickness by said deformation at said edge of said interface.
Claim 13
Dependent Claim
35 words
A contact member as set forth in claim 9 wherein a surface portion of said contact at said lateral portion of said contact member is smooth and compressively stressed adjacent said edge of said interface.
Claim 14
Dependent Claim
52 words
A contact member as set forth in claim 9 wherein said contact surface which is generally parallel to said arm surface is compressively indented at an edge of said contact surface extending along said lateral portion of said contact member establishing compressive stresses in said contact at said edge of said interface.
Claim 15
Dependent Claim
41 words
A contact member as set forth in claim 9 wherein said contact is compressively grooved at said lateral portion of said contact member adjacent said edge of said interface establishing compressive stresses in said contact at said edge of said interface.
Claim 16
Dependent Claim
41 words
A contact member as set forth in claim 9 wherein said arm is compressively grooved at said lateral portion of said contact member adjacent said edge of said interface establishing compressive stresses in said arm at said edge of said interface.
Claim 17
Dependent Claim
45 words
A contact member as set forth in claim 9 wherein said contact and arm are compressively grooved at said lateral portion of said contact member adjacent said edge of said interface establishing compressive stresses in said contact and arm at said edge of said interface.
Claim 18
Dependent Claim
97 words
A contact member comprising contact arm, a contact secured to a surface of said arm adjacent an edge of said arm surface disposing a surface of said contact in generally parallel relation to said arm surface and disposing an edge of an interface between said contact and arm at a lateral portion of said contact member, and a reinforcing member secured to said contact and arm along at least a portion of said edge of said interface retarding separation of said contact from said arm at said edge of said interface during use of said contact member.
Claim 19
Dependent Claim
97 words
A contact member comprising contact arm, a contact secured to a surface of said arm adjacent an edge of said arm surface disposing a surface of said contact in generally parallel relation to said arm surface and disposing an edge of an interface between said contact and arm at a lateral portion of said contact member, and a reinforcing member secured to said contact and arm along at least a portion of said edge of said interface retarding separation of said contact from said arm at said edge of said interface during use of said contact member.
Claim 20
Dependent Claim
53 words
A contact member as set forth in claim 15 wherein said contact comprises a layer of silver-cadmium-oxide material metallurgically bonded to a layer of silver, said contact secured to said arm surface by means of a layer of solder adhered to said silver layer of said contact, said reinforcing member formed of metal.
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) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |