Measuring and testing – Specimen stress or strain – or testing by stress or strain... – Threaded fastener stress
Patent
1997-08-29
1998-09-08
Noori, Max H.
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
Threaded fastener stress
7386223, G01N 322
Patent
active
058047379
ABSTRACT:
A U-bolt testing apparatus includes a pair of motors coupled to and selectively driving a pair of spindles. The spindles include sockets which are selectively movable vertically and horizontally as may be desired and which are placed over the U-bolt nuts. A U-bolt to be tested is placed on the chassis table with the component parts that are to be retained or clamped within the U-bolt and the U-bolt characteristics are tested by advancing the nuts onto the U-bolt threaded ends. In the alternative, a holding fixture is provided for securely retaining the U-bolt during testing. U-bolts having various different shapes and length of legs can be accommodated and tested by the apparatus. A computer controls the torque of the motors and nuts being advanced on the U-bolt threaded ends and monitors strain gauges which are attached to the U-bolt legs. The test data and characteristics of the tested U-bolts are viewable on an output module connected to the computer.
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patent: 5492019 (1996-02-01), Madden
Johnson, III Carl Edward
Knappenberger Nick Carl
McCoy Bolt Works, Inc.
Noori Max H.
Pappas George
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