Ratchet screwdriver
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 8, 2020
Grant Date -
May 9, 2019
app pub date -
Nov 6, 2017
filing date -
Nov 6, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A ratchet screwdriver includes a mounting seat, a fixing ring, a control member, a driving shaft, two pawls, two springs, a fixing ring, a control member, a bead, a positioning spring and a bolt. The mounting seat has a front with a first slot, a second slot, a first extension slot, a second extension slot, a passage, a first hole and a second hole. The driving shaft has a ratchet portion. Each pawl is biased by one spring so as to be engaged with the ratchet portion. The control member is rotatably mounted to the mounting seat and the driving shaft to pivot the pawls to engage or disengage with the ratchet portion.
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