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US5134364A Expired / Lapsed US ⏱️ 0.0 years remaining

Elastomeric test probe

Assignee: Computervision Corp
•
Filing: 1990-06-19
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Granted: 1992-07-28
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Expires: 2010-06-19
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Abstract

Abstract A test probe for testing electronic circuits is provided with a flexible conductive pad disposed at the end of the test probe. The flexible conductive pad is resilient so that when it makes physical and electrical contact with an electronic circuit, it compresses and does not damage either the electrical circuit or the probe itself.

Inventors

  • 👤 Maurice S. Karpman
  • 👤 Leo M. Higgins, III

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 23:37
CPC Classifications
G; G01; G01R; G01R1/00; G01R1/02; G01R1/06; G01R1/067; G01R1/06711

Claims Analysis

Total Claims: 44
Claim 1
Independent Claim 85 words
A test probe for signal testing an electronic circuit comprising: an elongated rigid pin member that is constructed of an electrically conductive metal material and having a free end and a longitudinal axis; and a flexible conductive tear drop shaped pad disposed at said free end of said pin member in alignment with the longitudinal axis of said elongated rigid pin member for cushioning physical and electrical contact between said test probe and the electronic circuit, said pad being constructed of a resilient elastomeric material.
Claim 2
Dependent Claim 85 words
A test probe for signal testing an electronic circuit comprising: an elongated rigid pin member that is constructed of an electrically conductive metal material and having a free end and a longitudinal axis; and a flexible conductive tear drop shaped pad disposed at said free end of said pin member in alignment with the longitudinal axis of said elongated rigid pin member for cushioning physical and electrical contact between said test probe and the electronic circuit, said pad being constructed of a resilient elastomeric material.
Claim 3
Dependent Claim 37 words
A test probe as set forth in claim 1 wherein said test probe further comprises measuring means for measuring voltage and current of the electronic circuit upon contact of the electronic circuit by said flexible conductive pad.
Claim 4
Dependent Claim 20 words
A test probe as set forth in claim 1, wherein said pin comprises at least one piece of conductive wire.
Claim 5
Dependent Claim 20 words
A test probe as set forth in claim 1 wherein said flexible conductive pad is integrally molded to said pin.
Claim 6
Dependent Claim 23 words
A test probe as set forth in claim 1 wherein said flexible conductive pad is secured to said pin by a conductive adhesive.
Claim 7
Dependent Claim 30 words
A test probe as set forth in claim 1 wherein the outer diameter of said flexible conductive pad is at most twice the outer diameter of said elongated rigid pin.
Claim 8
Dependent Claim 29 words
A test probe as set forth in claim 1 wherein said elongated rigid pin extends into the interior of said flexible conductive pad to support said flexible conductive pad.
Claim 9
Dependent Claim 20 words
A test probe as set forth in claim 7 wherein said flexible conductive pad is integrally molded to said pin.
Claim 10
Dependent Claim 23 words
A test probe as set forth in claim 7 wherein said flexible conductive pad is secured to said pin by a conductive adhesive.
Claim 11
Dependent Claim 23 words
A test probe as set forth in claim 1 wherein said resilient elastomeric material has a hardness in a range of 40-80 durometers.
Claim 12
Dependent Claim 35 words
A test probe as set forth in claim 1 wherein said resilient elastomeric material comprises a non-conductive material selected from the group consisting of silicone rubber, graphite, and any combination of silicone rubber and graphite.
Claim 13
Dependent Claim 101 words
A test probe for signal testing an electronic circuit comprising: an elongated rigid pin member that is constructed of an electrically conductive metal material and having a free end and a longitudinal axis; and a flexible conductive tear drop shaped pad disposed at said free end of said pin member in alignment with the longitudinal axis of said elongated rigid pin member for cushioning physical and electrical contacts between said test probe and the electronic circuit, said pad being constructed of a resilient elastomeric material, wherein said elastomeric material is a combination of a conductive material and a non-conductive resilient material.
Claim 14
Dependent Claim 101 words
A test probe for signal testing an electronic circuit comprising: an elongated rigid pin member that is constructed of an electrically conductive metal material and having a free end and a longitudinal axis; and a flexible conductive tear drop shaped pad disposed at said free end of said pin member in alignment with the longitudinal axis of said elongated rigid pin member for cushioning physical and electrical contacts between said test probe and the electronic circuit, said pad being constructed of a resilient elastomeric material, wherein said elastomeric material is a combination of a conductive material and a non-conductive resilient material.
Claim 15
Dependent Claim 34 words
A test probe as set forth in claim 12 wherein said conductive material of said elastomeric material occupies 50-80% of the volume of said elastomeric material and said non-conductive material occupies the remaining volume.
Claim 16
Dependent Claim 32 words
A test probe as set forth in claim 12 wherein said non-conductive resilient material is selected from the group consisting of silicone rubber, graphite, and any combination of silicone rubber and graphite.
Claim 17
Dependent Claim 30 words
A test probe as set forth in claim 12 wherein the outer diameter of said flexible conductive pad is at most twice the outer diameter of said elongated rigid pin.
Claim 18
Dependent Claim 29 words
A test probe as set forth in claim 12 wherein said elongated rigid pine extends into the interior of said flexible conductive pad to support said flexible conductive pad.
Claim 19
Dependent Claim 20 words
A test probe as set forth in claim 16 wherein said flexible conductive pad is integrally molded to said pin.
Claim 20
Dependent Claim 23 words
A test probe as set forth in claim 16 wherein said flexible conductive pad is secured to said pin by a conductive adhesive.
Claim 21
Dependent Claim 129 words
A test probe for signal testing an electronic circuit comprising: an elongated rigid pin member that is constructed of an electrically conductive metal material; and a flexible conductive tear drop shaped pad means disposed at the free end of said pin member along the longitudinal axis of the elongated rigid pin member for cushioning physical and electrical contact between said test probe and the electronic circuit, said pad means being constructed of a resilient elastomeric material, wherein said elastomeric material is a combination of a conductive material and a non-conductive resilient material, wherein said conductive material of said elastomeric material occupies 50-80% of the volume of said elastomeric material and said non-conductive material occupies the remaining volume, and wherein said non-conductive material of said elastomeric material is silicone rubber.
Claim 22
Dependent Claim 129 words
A test probe for signal testing an electronic circuit comprising: an elongated rigid pin member that is constructed of an electrically conductive metal material; and a flexible conductive tear drop shaped pad means disposed at the free end of said pin member along the longitudinal axis of the elongated rigid pin member for cushioning physical and electrical contact between said test probe and the electronic circuit, said pad means being constructed of a resilient elastomeric material, wherein said elastomeric material is a combination of a conductive material and a non-conductive resilient material, wherein said conductive material of said elastomeric material occupies 50-80% of the volume of said elastomeric material and said non-conductive material occupies the remaining volume, and wherein said non-conductive material of said elastomeric material is silicone rubber.
Claim 23
Dependent Claim 98 words
A test probe for signal testing an electronic circuit comprising: an elongated rigid pin member that is constructed of an electrically conductive metal material and having a free end and a longitudinal axis; and a flexible conductive tear drop shaped pad disposed at said free end of said pin member in alignment with the longitudinal axis of said elongated rigid pin member for cushioning physical and electrical contact between said test probe and the electronic circuit, said pad being constructed of a resilient elastomeric material, wherein said flexible conductive pad is compressible up to 20% of its volume.
Claim 24
Dependent Claim 98 words
A test probe for signal testing an electronic circuit comprising: an elongated rigid pin member that is constructed of an electrically conductive metal material and having a free end and a longitudinal axis; and a flexible conductive tear drop shaped pad disposed at said free end of said pin member in alignment with the longitudinal axis of said elongated rigid pin member for cushioning physical and electrical contact between said test probe and the electronic circuit, said pad being constructed of a resilient elastomeric material, wherein said flexible conductive pad is compressible up to 20% of its volume.
Claim 25
Dependent Claim 29 words
A test probe as set forth in claim 20 wherein said resilient elastomeric material includes conductive and non-conductive materials and wherein said conductive materials comprise electrically conductive metal pieces.
Claim 26
Dependent Claim 35 words
A test probe as set forth in claim 20 wherein said resilient elastomeric material comprises a non-conductive material selected from the group consisting of silicone rubber, graphite, and any combination of silicone rubber and graphite.
Claim 27
Dependent Claim 30 words
A test probe as set forth in claim 20 wherein the outer diameter of said flexible conductive pad is at most twice the outer diameter of said elongated rigid pin.
Claim 28
Dependent Claim 29 words
A test probe as set forth in claim 20 wherein said elongated rigid pin extends into the interior of said flexible conductive pad to support said flexible conductive pad.
Claim 29
Dependent Claim 20 words
A test probe as set forth in claim 24 wherein said flexible conductive pad is integrally molded to said pin.
Claim 30
Dependent Claim 23 words
A test probe as set forth in claim 24 wherein said flexible conductive pad is secured to said pin by a conductive adhesive.
Claim 31
Dependent Claim 31 words
A test probe as set forth in claim 1 wherein said non-conductive material is selected from the group consisting of silicone rubber, graphite, and any combination of silicone rubber and graphite.
Claim 32
Dependent Claim 131 words
A test probe for signal testing an electronic circuit comprising: an elongated rigid pin member that is constructed of an electrically conductive metal material; and a flexible conductive tear drop shaped pad means disposed at the free end of said pin member for cushioning physical and electrical contact between said test probe and the electronic circuit, said pad means being constructed of a resilient elastomeric material, wherein said flexible conductive pad means is compressible up to 20% of its volume, wherein said flexible conductive pad means is comprised of an elastomeric material including conductive and non-conductive materials and in which said conductive materials comprise electrically conductive metal pieces, and wherein said non-conductive material is selected from the group consisting of silicone rubber, graphite, and any combination of silicone rubber and graphite.
Claim 33
Dependent Claim 131 words
A test probe for signal testing an electronic circuit comprising: an elongated rigid pin member that is constructed of an electrically conductive metal material; and a flexible conductive tear drop shaped pad means disposed at the free end of said pin member for cushioning physical and electrical contact between said test probe and the electronic circuit, said pad means being constructed of a resilient elastomeric material, wherein said flexible conductive pad means is compressible up to 20% of its volume, wherein said flexible conductive pad means is comprised of an elastomeric material including conductive and non-conductive materials and in which said conductive materials comprise electrically conductive metal pieces, and wherein said non-conductive material is selected from the group consisting of silicone rubber, graphite, and any combination of silicone rubber and graphite.
Claim 34
Dependent Claim 41 words
A test probe as set forth in claim 28 wherein said conductive material and said non-conductive resilient material are included in said elastomeric material in relative proportions such that said elastomeric material has a hardness in a range of 40-80 durometers.
Claim 35
Dependent Claim 30 words
A test probe as set forth in claim 28 wherein said conductive material comprises a material selected from the group consisting of gold, silver, copper, tungsten and any combination thereof.
Claim 36
Dependent Claim 34 words
A test probe as set forth in claim 28 wherein said conductive material of said elastomeric material comprises 50-80% of the volume of said elastomeric material and said non-conductive material occupies the remaining volume.
Claim 37
Dependent Claim 122 words
A test probe for signal testing an electronic circuit comprising: an elongated rigid pin member that is constructed of an electrically conductive metal material; and a flexible conductive tear drop shaped pad means disposed at the free end of said pin member for cushioning physical and electrical contact between said test probe and the electronic circuit, said pad means being constructed of a resilient elastomeric material, wherein said flexible conductive pad means is compressible up to 20% of its volume, wherein said flexible conductive pad means is comprised of an elastomeric material including conductive and non-conductive materials and in which said conductive materials comprise electrically conductive metal pieces, wherein said conductive material comprises silver, and wherein said non-conductive material comprises silicone rubber.
Claim 38
Dependent Claim 122 words
A test probe for signal testing an electronic circuit comprising: an elongated rigid pin member that is constructed of an electrically conductive metal material; and a flexible conductive tear drop shaped pad means disposed at the free end of said pin member for cushioning physical and electrical contact between said test probe and the electronic circuit, said pad means being constructed of a resilient elastomeric material, wherein said flexible conductive pad means is compressible up to 20% of its volume, wherein said flexible conductive pad means is comprised of an elastomeric material including conductive and non-conductive materials and in which said conductive materials comprise electrically conductive metal pieces, wherein said conductive material comprises silver, and wherein said non-conductive material comprises silicone rubber.
Claim 39
Dependent Claim 105 words
A test probe for signal testing an electronic circuit comprising: an elongated rigid pin member that is constructed of an electrically conductive metal material; and a flexible conductive tear drop shaped pad means disposed at the free end of said pin member for cushioning physical and electrical contact between said test probe and the electronic circuit, said pad means being constructed of a resilient elastomeric material, wherein said elastomeric material is a combination of a conductive material and a non-conductive resilient material, and wherein said non-conductive material is selected from the group consisting of silicone rubber, graphite, and any combination of silicone rubber and graphite.
Claim 40
Dependent Claim 105 words
A test probe for signal testing an electronic circuit comprising: an elongated rigid pin member that is constructed of an electrically conductive metal material; and a flexible conductive tear drop shaped pad means disposed at the free end of said pin member for cushioning physical and electrical contact between said test probe and the electronic circuit, said pad means being constructed of a resilient elastomeric material, wherein said elastomeric material is a combination of a conductive material and a non-conductive resilient material, and wherein said non-conductive material is selected from the group consisting of silicone rubber, graphite, and any combination of silicone rubber and graphite.
Claim 41
Dependent Claim 41 words
A test probe as set forth in claim 33 wherein said conductive material and said non-conductive resilient material are included in said elastomeric material in relative proportions such that said elastomeric material has a hardness in a range of 40-80 durometers.
Claim 42
Dependent Claim 30 words
A test probe as set forth in claim 33 wherein said conductive material comprises a material selected from the group consisting of gold, silver, copper, tungsten and any combination thereof.
Claim 43
Dependent Claim 96 words
A test probe for signal testing an electronic circuit comprising: an elongated rigid pin member that is constructed of an electrically conductive metal material; and a flexible conductive tear drop shaped pad means disposed at the free end of said pin member for cushioning physical and electrical contact between said test probe and the electronic circuit, said pad means being constructed of a resilient elastomeric material, wherein said elastomeric material is a combination of a conductive material and a non-conductive resilient material, wherein said conductive material comprises silver, and wherein said non-conductive material comprises silicone rubber.
Claim 44
Dependent Claim 96 words
A test probe for signal testing an electronic circuit comprising: an elongated rigid pin member that is constructed of an electrically conductive metal material; and a flexible conductive tear drop shaped pad means disposed at the free end of said pin member for cushioning physical and electrical contact between said test probe and the electronic circuit, said pad means being constructed of a resilient elastomeric material, wherein said elastomeric material is a combination of a conductive material and a non-conductive resilient material, wherein said conductive material comprises silver, and wherein said non-conductive material comprises silicone rubber.

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) 1995-07-28 1996-01-27 1996-07-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-07-28 2000-01-27 2000-07-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-07-28 2004-01-27 2004-07-28 $7700.00 Window Closed / Lapsed

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