Fastener tester

Details Fastener tester Fastener tester

1989-05-10

1990-07-31

Yasich, Daniel M.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

Threaded fastener stress

411 14, F16B 3102

Patent

active

049441884

ABSTRACT:
An apparatus for testing the integrity of a fastener under load. The apparatus includes an actuating assembly and a tensile loading structure mounted in serial relationship. The actuating assembly includes a piston and cylinder assembly. The cylinder heads are supported by a plurality of rods which are secured to a plurality of compressions rods of the tensile loading structure. The piston rod extends through an upper cylinder head and is connected to a movable shackle. A second shackle is secured to a cap or top member of the tensile loading structure. A bolt to be tested is secured in removable inserts carried in the shackles. A gage reads the amount of force, in pounds, applied to the bolt. An enclosure is provided for enclosing the tensile loading structure for protecting people and materials in the testing area, and wheels are disposed on a cabinet which supports the actuating mechanism and the tensile loading structure to provide portability to the apparatus.

REFERENCES:
patent: 3382709 (1968-05-01), Sorensen
patent: 3429179 (1969-02-01), Bowen et al.
patent: 3563087 (1971-02-01), Brunelle et al.
patent: 4554838 (1985-11-01), Paus
patent: 4791839 (1988-12-01), Bickford et al.

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