Tools – Wrench – screwdriver – or driver therefor – Handle clutched to head
Reexamination Certificate
2000-07-24
2001-06-05
Meislin, D. S. (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Handle clutched to head
C192S043100, C081S063100
Reexamination Certificate
active
06240810
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to a ratchet screwdriver, and more particularly to a ratchet screwdriver having a concealable ratchet shifter.
2. Description of Related Art
As shown in
FIGS. 1 and 2
, a ratchet screwdriver
10
of the prior art comprises a handle
11
having a main body
12
which is provided at the front end with a central axial hole
14
with a heart hole
13
for pivoting a shaft rod
17
. The shaft rod
17
has a gear
15
and a pillar
16
. The main body
12
is provided with an insertion slot
18
for receiving a stop plate
19
. The gear
15
is actuated by two reverse plates
20
disposed on the top of the main body
12
. The two reverse plates
20
are provided with a dial seat
22
having two resilient press plates
21
. A casing
24
has a position confining hole
23
and is fitted into the front end of the main body
12
such that the cut edge
25
of the casing
24
is stopped on a projection
26
of the main body
12
. The main body
12
is provided at the front end with a locking member
28
having a carrying hole
27
.
Such a prior art ratchet screwdriver as described above is defective in design because the protruded knob
29
of the dial seat
22
makes the assembly of the casing
24
difficult, and because dial seat
22
can not be easily adjusted.
BRIEF SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a ratchet screwdriver with a concealable ratchet shifter.
REFERENCES:
patent: 5379873 (1995-01-01), Shiao
patent: 5910196 (1999-06-01), Huang
patent: 6151995 (2000-11-01), Shu
Harrison & Egbert
Meislin D. S.
Yeh-Hsing Enterprise Co., Ltd.
LandOfFree
Ratchet screwdriver having a concealable ratchet shifter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ratchet screwdriver having a concealable ratchet shifter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ratchet screwdriver having a concealable ratchet shifter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2462801