Flow control structure of a gardening pistol nozzle

Details Flow control structure of a gardening pistol nozzle Flow control structure of a gardening pistol nozzle

2002-11-04

2003-11-04

Mar, Michael (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Flow line or nozzle attached or carried handgrip or handle

Pistol grip type

C239S569000, C239S583000, C239S525000

Reexamination Certificate

active

06641062

ABSTRACT:

RELATED U.S. APPLICATIONS
Not applicable.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not applicable.
REFERENCE TO MICROFICHE APPENDIX
Not applicable.
1. Field of the Invention
The present invention relates generally to a gardening sprinkler, and more particularly to a pistol nozzle of the gardening sprinkler.
2. Background of the Invention
As shown in
FIG. 1
, a gardening pistol nozzle of the prior art comprises a control lever
10
and a retaining piece
11
. The control lever
10
is provided at one end with a retaining edge
13
. The retaining piece
11
is provided with a toothed side
12
opposite in location to the retaining edge
13
of the control lever
10
. The control lever
10
is used for regulating the flow of water to the nozzle head. The control lever can be so set as to regulate a constant flow of water in conjunction with the retaining piece
11
. As the retaining edge
13
of the control lever
10
is retained at a specific position of the toothed side
12
of the retaining piece
11
, the constant flow of water is set without calling for the use of one hand of a user of the pistol nozzle to keep pressing the control lever
10
. However, the toothed side
12
of the retaining piece
11
and the retaining edge
13
of the control lever
10
are susceptible to damage which is caused by mechanical friction. In addition, the control lever
10
can not be so set that the retaining edge
13
is free from the confinement of the toothed side
12
. In another words, the control lever
10
lacks versatility. Moreover, both the control lever
10
and the retaining piece
11
are so exposed that they are vulnerable to damage by impact.
BRIEF SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a gardening pistol nozzle which is versatile in design and is free of the deficiencies of the prior art pistol nozzle described above with reference to FIG.
1
.
In keeping with the principle of the present invention, the foregoing objective of the present invention is attained by the gardening pistol nozzle comprising a nozzle head, a handle, an inner retaining seat, a control knob, an outer retaining seat, and two shifting members. The inner retaining seat is disposed in the handle, while the outer retaining seat is disposed in the control knob. The engagement and the disengagement of the inner retaining seat with the outer retaining seat are regulated by the two shifting members.
The features, functions, and advantages of the present invention will be more readily understood upon a thoughtful deliberation of the following detailed description of two preferred embodiments of the present invention with reference to the accompanying drawings.


REFERENCES:
patent: 5967421 (1999-10-01), Wang
patent: 5967422 (1999-10-01), Wang
patent: 6007003 (1999-12-01), Wang
patent: 6173911 (2001-01-01), Hui-Chen
patent: 6260774 (2001-07-01), Erickson
patent: 6382529 (2002-05-01), Wu
patent: 6454187 (2002-09-01), Wang

Affiliated with

Also associated with

Rating

Flow control structure of a gardening pistol nozzle does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flow control structure of a gardening pistol nozzle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flow control structure of a gardening pistol nozzle will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3139178