Trowel having imposed blade stresses and method of manufacture
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Mar 7, 2000
Issued Date -
N/A
app pub date -
Mar 31, 1998
filing date -
Jan 23, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A trowel and related method of manufacture in which residual stresses are intentionally imposed upon the bottom working surface and/or the top mounting surface of a trowel blade. Stresses can be imposed, for example, by glass bead peening, shot peening, rolling, and/or brushing the metal trowel blade. Stresses are built up to a working stress level that remains substantially constant with further use of the trowel against abrasive, spreadable surfaces. Imposed stresses on the top and bottom surfaces can also be used to vary the resulting curvature of the blade.
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