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US4618208A Expired / Lapsed US ⏱️ 0.0 years remaining

Circuit test clip

Assignee: Nikko Kogyo KK
•
Filing: 1985-10-28
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Granted: 1986-10-21
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Expires: 2005-10-28
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Abstract

Abstract A circuit test clip with a plurality of conducting elements making simultaneous electrical contact with an equal number of terminals on a miniaturized circuit formed on a printed circuit board. The test clip is useful for inspection or otherwise testing such miniaturized circuits.

Inventors

  • 👤 Osamu Igarashi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 08:14
CPC Classifications
G; G01; G01R; G01R1/00; G01R1/02; G01R1/04; G01R1/0408; G01R1/0425; H; H01; H01R; H01R11/00; H01R11/11; H01R11/22; H01R11/24; Y; Y10; Y10S; Y10S439/00; Y10S439/912

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 249 words
Circuit test clip having a pair of oppositely disposed support members pivotally connected to one another by an orthogonally crossing pin, each of said support members having a plurality of conducting elements extending longitudinally from a front to rear end of said support members, said conducting elements being juxtaposed at an interval corresponding to that of arrangement of terminals to be tested, and resilient means coacting with said support members for resiliently urging both of the front ends of the support members toward one another, the improvement wherein: each of said support members is an assembly of an outer plate superposed on an inner plate which is shorter in length than the outer plate; the outer plate having in the area confronting the inner plate a plurality of longitudinal slots juxtaposed at said interval for accommodating each of said conducting elements in each slot; said outer and inner plates respectively having first and second projections extending in a direction in which one support member faces the other support member, each of said projections having holes for insertion of said pin, the inner plate having through-holes for insertion of said first projections on said outer plate; the holes in said first projections being aligned with those in said second projections when the inner plate is superposed on the outer plate; and the positions of the first and second projections on one of said support members being complementary with those of the first and second projections on the other support member.
Claim 2
Dependent Claim 249 words
Circuit test clip having a pair of oppositely disposed support members pivotally connected to one another by an orthogonally crossing pin, each of said support members having a plurality of conducting elements extending longitudinally from a front to rear end of said support members, said conducting elements being juxtaposed at an interval corresponding to that of arrangement of terminals to be tested, and resilient means coacting with said support members for resiliently urging both of the front ends of the support members toward one another, the improvement wherein: each of said support members is an assembly of an outer plate superposed on an inner plate which is shorter in length than the outer plate; the outer plate having in the area confronting the inner plate a plurality of longitudinal slots juxtaposed at said interval for accommodating each of said conducting elements in each slot; said outer and inner plates respectively having first and second projections extending in a direction in which one support member faces the other support member, each of said projections having holes for insertion of said pin, the inner plate having through-holes for insertion of said first projections on said outer plate; the holes in said first projections being aligned with those in said second projections when the inner plate is superposed on the outer plate; and the positions of the first and second projections on one of said support members being complementary with those of the first and second projections on the other support member.
Claim 3
Dependent Claim 26 words
A circuit test clip according to claim 1 wherein rear ends of said conductive elements accommodated in said support members project from the rear ends thereof.
Claim 4
Dependent Claim 50 words
A circuit test clip according to claim 1 wherein each of said conductive elements is provided with an acute-angled face that is directed inwardly toward the axis of each conductive element so that said element will be pressed against the bent portion of a terminal on a circuit under test.
Claim 5
Dependent Claim 28 words
A circuit test clip according to claim 1 wherein each of said conductive elements are defined by an outwardly projecting hook portion formed in a middle portion thereof.
Claim 6
Dependent Claim 51 words
A circuit test clip according to claim 1 wherein said outer plate is provided with holes for accommodating the projections on said conductive elements, said holes being arranged in a direction traversing said slots in said middle portion of said outer plate in its longitudinal direction and communicating with said slots.
Claim 7
Dependent Claim 41 words
A circuit test clip according to claim 5 wherein an outside surface of said outer plate is provided with short slots for guiding conductor wires that communicate with said holes and are directed toward a rear end of said outer plate.

References Cited (Backward Citations)

US3506949A Cited
US3899239A Cited
US3914007A Cited
US4012097A Cited
US4116518A Cited
US4210383A Cited
SU1005227A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-10-20 1990-04-21 1990-10-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-10-20 1994-04-21 1994-10-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-10-20 1998-04-21 1998-10-21 $7700.00 Window Closed / Lapsed

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