Self-retracting tape rule
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United States of America Patent
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Sep 14, 2021
Grant Date -
Jul 16, 2020
app pub date -
Jan 14, 2019
filing date -
Jan 14, 2019
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A tape rule comprises a blade, a reel, a spring, a lock, and a housing. The blade comprises a substrate and a coating. The coating is configured to provide color, environmental protection, and/or abrasion resistance. In some embodiments, (1) the coating is formed from non-polymer materials; (2) the blade comprises reinforcements metallurgically bonded to the blade at or near a free end; (3) measurement indicia comprise locally annealed portions of the substrate or the coating that create color contrasts; (4) the measurement indicia comprise portions of the substrate visible through gaps in the coating; (5) the measurement indicia comprise voids in the substrate filled with a coating material having a contrasting color; and/or (6) the substrate has a surface texture configured to change an appearance of the coating relative to an appearance of the coating on an as rolled surface finish of the metal substrate.
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