Metal treatment – Process of modifying or maintaining internal physical... – Heating or cooling of solid metal
Reexamination Certificate
2011-08-30
2011-08-30
Yee, Deborah (Department: 1733)
Metal treatment
Process of modifying or maintaining internal physical...
Heating or cooling of solid metal
C148S908000, C029S402010, C029S402210, C029S896930
Reexamination Certificate
active
08007606
ABSTRACT:
An improved method for salvaging a spring element with a degraded force constant for return to a work environment. The spring element is subjected to a high temperature and extended duration annealing treatment alone or in combination with other treatments. The resultant salvaged spring is characterized by a more durable force constant relative to the original spring when it was new.
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Metalworking:Sheet Forming, vol. 14B, ASM Handbook, ASM International, 2006, p. 861-862, http://products.asminternational.org.
El-Sayed Sami
Jenkel Howard D.
May Paul
Caterpillar Inc.
Leydig & Voit & Mayer
Yee Deborah
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