Patents Assigned to Circuit Check, Inc.
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Patent number: 9772349Abstract: A circuit board tester and method that precisely aligns the probe plate and circuit board is disclosed. With a circuit board and probe plate mounting within a housing having a top and bottom, hinged together, at closure there may be slight misalignments of the two. By making one of the two plates floating, or laterally slideable with respect to each other, it is possible to make final alignment at closure. One of the two plates can be provided with a pin and the other with a pin receiving alignment block. With the lateral slideability, the pin and block can insure proper probe alignment. Additional systems for correcting misaligned pins or blocks are also disclosed.Type: GrantFiled: September 25, 2014Date of Patent: September 26, 2017Assignee: Circuit Check, Inc.Inventors: Gregory J. Michalko, Stuart K. Eickhoff, Jon A. Hample, Russell G. Carter
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Patent number: 9091722Abstract: A dual-stage fixture for a circuit tester includes a slide plate that can be slid between at least a first position and a second position. In the first position, an upper stripper plate is spring-loaded, and a full set of test probes, including both long-stroke and short-stroke probes, can contact the circuit board or UUT (unit under test). In the second position, the upper stripper plate becomes fixed in position, and only the long-stroke probes can contact the circuit board. The fixed positioning of the upper stripper plate prevents the short-stroke probes from contacting the circuit board even when there is unbalanced loading of probe pressure between the top and bottom of the circuit board, thereby preventing transient signals from interfering with testing. In addition, a vacuum is applied in this position during a non-powered test.Type: GrantFiled: June 17, 2014Date of Patent: July 28, 2015Assignee: Circuit Check, Inc.Inventors: Clement C. Adams, Matthew Eric Lavik, Gregory J. Michalko, Stuart Eickhoff
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Patent number: 8847618Abstract: A circuit board tester and method that precisely aligns the probe plate and circuit board is disclosed. With a circuit board and probe plate mounting within a housing having a top and bottom, hinged together, at closure there may be slight misalignments of the two. By making one of the two plates floating, or laterally slideable with respect to each other, it is possible to make final alignment at closure. One of the two plates can be provided with a pin and the other with a pin receiving alignment block. With the lateral slideability, the pin and block can insure proper probe alignment. Additional systems for correcting misaligned pins or blocks are also disclosed.Type: GrantFiled: April 20, 2012Date of Patent: September 30, 2014Assignee: Circuit Check, Inc.Inventors: Gregory J. Michalko, Stuart K. Eickhoff, Jon A. Hample, Russell G. Carter
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Patent number: 8754665Abstract: A dual-stage fixture for a circuit tester includes a slide plate that can be slid between at least a first position and a second position. In the first position, an upper stripper plate is spring-loaded, and a full set of test probes, including both long-stroke and short-stroke probes, can contact the circuit board or UUT (unit under test). In the second position, the upper stripper plate becomes fixed in position, and only the long-stroke probes can contact the circuit board. The fixed positioning of the upper stripper plate prevents the short-stroke probes from contacting the circuit board even when there is unbalanced loading of probe pressure between the top and bottom of the circuit board, thereby preventing transient signals from interfering with testing. In addition, a vacuum is applied in this position during a non-powered test.Type: GrantFiled: April 11, 2012Date of Patent: June 17, 2014Assignee: Circuit Check, Inc.Inventors: Clement C. Adams, Matthew Eric Lavik, Gregory J. Michalko, Stuart Eickhoff
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Patent number: 8692569Abstract: A circuit board tester and method that precisely aligns the probe plate and circuit board is disclosed. With a circuit board and probe plate mounting within a housing having a top and bottom, hinged together, at closure there may be slight misalignments of the two. By making one of the two plates floating, or laterally slideable with respect to each other, it is possible to make final alignment at closure. One of the two plates can be provided with a pin and the other with a pin receiving alignment block. With the lateral sideability, the pin and block can insure proper probe alignment. Additional systems for correcting misaligned pins or blocks are also disclosed.Type: GrantFiled: April 11, 2011Date of Patent: April 8, 2014Assignee: Circuit Check, Inc.Inventors: Troy Fossum, David Kariniemi
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Publication number: 20130271171Abstract: A dual-stage fixture for a circuit tester includes a slide plate that can be slid between at least a first position and a second position. In the first position, an upper stripper plate is spring-loaded, and a full set of test probes, including both long-stroke and short-stroke probes, can contact the circuit board or UUT (unit under test). In the second position, the upper stripper plate becomes fixed in position, and only the long-stroke probes can contact the circuit board. The fixed positioning of the upper stripper plate prevents the short-stroke probes from contacting the circuit board even when there is unbalanced loading of probe pressure between the top and bottom of the circuit board, thereby preventing transient signals from interfering with testing. In addition, a vacuum is applied in this position during a non-powered test.Type: ApplicationFiled: April 11, 2012Publication date: October 17, 2013Applicant: Circuit Check, Inc.Inventors: Clement C. Adams, Matthew Eric Lavik, Gregory J. Michalko, Stuart Eickhoff