Measuring and testing – Specimen stress or strain – or testing by stress or strain... – By loading of specimen
Reexamination Certificate
2007-10-23
2007-10-23
Noori, Max (Department: 2855)
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
By loading of specimen
Reexamination Certificate
active
11047127
ABSTRACT:
An apparatus and method for testing weld integrity is disclosed which is portable, self-contained, adaptable for field use in most locations, and can verify the integrity of attachment welds. The testing apparatus includes a cylinder or cylinders, attachable to the desired object to be tested on one end and to a cross bar on the other end, support beam or beams which, along with the cylinder or cylinders, support the test apparatus, a supply for pressurized fluid, and a control manifold for flow direction and pressure measurement. The pressurized fluid moves the cylinder shaft creating a load on the test piece. As the fluid pressure increases, the cylinder shafts extend or retract and exert a required load on the test piece. The test piece is then inspected for breakage or damage such as deformation or attachment weld cracking.
REFERENCES:
patent: 4020680 (1977-05-01), Mehdizadeh et al.
patent: 4502338 (1985-03-01), Smith et al.
patent: 4676110 (1987-06-01), Hodo et al.
patent: 4864866 (1989-09-01), Hardy et al.
patent: 5380393 (1995-01-01), Drabarek et al.
Noori Max
S & H Fabrication, Inc.
The Matthews Firm
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