Note: Descriptions are shown in the official language in which they were submitted.
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Crimping Tool
BACKGROUND OF THE INVENTION
Field of the invention
More particularly, the present invention relates generally to a tool
which can be hand held and used to crimp a ring onto a pipe joint.
Description of the related art
A search of prior art records has unveiled the following patents:
1. US 2,891,598 issued in 1959 to Stanley;
2. US 2,526,210 issued in 1949 to Edelmann;
3. US D 400,893 issued in 1998 to Peterson;
4. US 3,191,420 issued in 1963 to Wilson;
5. US 4,192,171 issued in 1980 to Hamilton;
6. US 4,266,420 issued in 1981 to Walker;
7. US 4,982,594 issued in 1991 to Wiebe;
8. US 5,063,770 issued in 1991 to Chen;
9. US 5,094,097 issued in 1992 to Tooth;
10. US 5,280,716 issued in 1994 to Ryan;
11. US 5,267,464 issued in 1993 to Cleland; and
12. US D 341,303 issued in 1993 to Davis.
It is therefore an object of the present invention to provide a tool
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which can be hand held and used to crimp a ring onto a pipe joint.
Summary of the invention:
According to the present invention, there is described a tool being
used to crimp a ring onto a pipe joint, which includes two half-die
members having each bore openings and a recess formed at their
rear end portion for receiving a body member to be connected
therewith by dowell pins, and further at their front end portion is
formed a recess for receiving a threaded rod coupled to a clamp bolt.
The threaded rod is engaged therein a threaded bore formed thereon
a bushing which passes through two bores located thereof each side
of the lower half-die member.
The clamp bolt is blocked therein the bushing by a spring pin to be
engaged therethrough a hole formed therewith and through a hole
formed therein the threaded rod.
Further, the both half-die members are disposed in alignment with
the bore openings for receiving the ring that is crimped onto the pipe
joint by the use of a handle having at each end portion a notch to
prevent the handle to be pulled out of the clamp bolt.
And further, the clamp bolt includes at its upper end portion an
exagonal-head to be used with a key or ratchet if needed.
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And finally, a washer is mounted to the clamp bolt for protecting the
top face of the upper half-die member.
Brief description of the several views of the drawing(s):
The invention will now be described by way of example with
reference to the accompanying drawings, in which:
Figure 1 is a plan view illustrating the improved crimping tool;
Figure 2 is a side view illustrating the crimping tool in the open
position; and
Figure 3 is an exploded view showing the components in position for
assembly.
Detailed description of the invention:
Now referring to the accompanying drawings, and in particular to figs.
1 to 3, there is shown a tool being used to crimp a ring onto a pipe
joint, which includes two half-die members (1)(2) having each bore
openings (8) and a recess (7) formed at their rear end portion for
receiving a body member (3) to be connected therewith by dowell
pins (4) therein holes (6), and further at their front end portion is
formed a recess (12)(13) for receiving a threaded rod (17) coupled to
a clamp bolt (19). The threaded bolt (17) is engaged therein a
threaded bore (10) formed thereon a bushing (9) passing through two
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bores (11) formed thereof each side of the lower half-die member (2).
The clamp bolt (19) is blocked therein the bushing (9) by a spring pin
(15) to be engaged therethrough a hole (14) formed therewith and
through a hole (16) formed therein the threaded rod (17).
Further, the both half-die members (1)(2) are disposed in alignment
with the bore openings (8) for receiving the ring that is crimped onto
the pipe joint by the use of a handle (22) having at each end portion
a notch (23) to prevent the handle passing through holes (21) of the
clamp bolt (19) to be pulled out.
And further, the clamp bolt (19) includes at its upper end portion an
hexagonal-head (20) to be used with a key or ratchet if needed.
And finally, a washer (18) is mounted to the clamp bolt (19) for
protecting the top face of the upper half-die member (1).
Accordingly, while the preferred embodiments of the invention have
been described above, it will be recognized and understood that
various modifications may be made in the invention and the
appended claims are intended to cover all such modifications which
may fall within the spirit and scope of the invention.
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