Hoisting device with stressing indicia
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United States of America Patent
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-
Sep 26, 1995
Grant Date -
N/A
app pub date -
Jan 26, 1994
filing date -
Jan 26, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved hoisting device, such as a hook, shackle, ring, link, or the like, includes indicia for determining deformation damage to the device from overstressing. The indicia includes components which assume a predetermined geometrical configuration, such as a line segment co-linearly aligned with another line segment or dot, as the device is in an unstressed and undeformed state, and which do not assume the predetermined configuration if the device have been damaged from over-stressing. The indicia also includes cooperating components for dynamically indicating the magnitude of stressing relative to the maximum design stress of the device. The indicia is adapted for both close proximity and remote stressing determinations.
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