Ratchet screwdriver
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 28, 2002
Grant Date -
N/A
app pub date -
Dec 27, 2000
filing date -
Dec 27, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A ratchet screwdriver including a main body, two stop blocks, a switching block, a locating member, a recovery elastic piece. The main body is provided with an outer threaded portion having a hole for receiving a ratchet rod. A shell tube is fitted over the main body such that a switching ring is fitted over the shell tube. The switching ring is provided with a retaining groove for retaining a protruded block of the switching block. The shell tube and the switching ring are pressed against the main body by a pressing member having inner threads which are engaged with the outer threaded portion of the main body.
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Cited Art Landscape
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