Measuring and testing – Specimen stress or strain – or testing by stress or strain... – By loading of specimen
Reexamination Certificate
2007-10-24
2011-12-27
Caputo, Lisa (Department: 2855)
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
By loading of specimen
C073S810000
Reexamination Certificate
active
08082799
ABSTRACT:
A method is provided for determining the extent of cyclic stress fatigue suffered by a component comprising the steps of: (i) obtaining a gauge material which undergoes a continued progressive/cumulative and quantifiable change in at least one of its physical properties in response to repeated strain cycles applied to the gauge material, the quantifiable change being indicative of both degree of strain and number of cycles incurred during the repeated strain cycles; (ii) determining a correlation between an extent of the quantifiable change in the gauge material and an effect on said component of a corresponding number and degree of strain cycles; (iii) affixing the gauge material to said component to subject the gauge material to any strain encountered by an adjacent portion of the component; (iv) at least periodically determining the extent of said quantifiable change to the gauge material to determine the extent of cyclic stress fatigue undergone by the component.
REFERENCES:
patent: 2294897 (1942-09-01), Ellis
patent: 3005332 (1961-10-01), McClintock
patent: 3433060 (1969-03-01), Ives et al.
patent: 3715915 (1973-02-01), Williams
patent: 3979949 (1976-09-01), Smith
patent: 4015465 (1977-04-01), Scott
patent: 4179940 (1979-12-01), Oertle et al.
patent: 4265120 (1981-05-01), Morris et al.
patent: 4625567 (1986-12-01), Frayer, Jr. et al.
patent: 4869113 (1989-09-01), Sarrazin
patent: 5018389 (1991-05-01), Mraz
patent: 5531123 (1996-07-01), Henkel
patent: 6240783 (2001-06-01), McGugin et al.
patent: 6592502 (2003-07-01), Phillips
patent: 7299678 (2007-11-01), Atherton
patent: 7515781 (2009-04-01), Chimenti et al.
patent: 2005/0273277 (2005-12-01), Ridnour et al.
patent: 2007/0276294 (2007-11-01), Gupta et al.
patent: 2008/0262754 (2008-10-01), Oudovikine
patent: 2010/0299086 (2010-11-01), Oudovikine
Office Actions and Response Corresponding to U.S. Appl. No. 11/875,206, Mailed Beginning Apr. 10, 2009.
International Search Report for PCT/CA2007/001893 Mailed Feb. 7, 2008.
Written Opinion for PCT/CA2007/001893 Mailed Feb. 7, 2008.
International Preliminary Report on Patentability for PCT/CA2007/001893 Mailed Mar. 19, 2009.
Caputo Lisa
Dunlap Jonathan
Greenlee Sullivan P.C.
Paradigm Shift Technologies Inc.
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