Fluid sprinkling – spraying – and diffusing – Flow line or nozzle attached or carried handgrip or handle – Spray pole type
Reexamination Certificate
2002-12-17
2003-07-08
Mar, Michael (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Flow line or nozzle attached or carried handgrip or handle
Spray pole type
C239S280000, C239S600000, C239S525000, C285S914000
Reexamination Certificate
active
06588683
ABSTRACT:
RELATED U.S. APPLICATIONS
Not applicable.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not applicable.
REFERENCE TO MICROFICHE APPENDIX
Not applicable.
FIELD OF THE INVENTION
The present invention relates generally to a gardening spray nozzle, and more particularly to a structure for fastening a barrel and a handle of the gardening spray nozzle.
BACKGROUND OF THE INVENTION
The conventional gardening spray nozzle comprises a barrel which is fastened at one end to a nozzle head, and at the other end to a handle. The barrel is fastened to the handle by a ferrule in conjunction with a washer. Such a fastening structure as described above is grossly insufficient in terms of structural strength and locating effect. As a result, the barrel becomes loosened easily. In light of the nozzle head being tilted, the barrel cannot be securely held by the handle.
BRIEF SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a gardening spray nozzle with a fastening structure capable of holding securely a barrel and a handle of the gardening spray nozzle.
The fastening structure of the present invention comprises a retaining slot which is located in the wall of a fastening end of the barrel; a retaining projection which is located in the inner wall of a threaded neck of the handle and is shaped to fit into the retaining slot of the fastening end of the barrel; a ferrule fastened with the threaded neck of the handle; and a retaining ring located jointly by a retaining groove of the fastening end of the barrel and a furrow of the threaded neck of the handle. The fastening structure of the present invention may comprise a plurality of retaining slots and retaining projections.
REFERENCES:
patent: 4880166 (1989-11-01), Suttner
patent: 5971019 (1999-10-01), Imai
patent: 6209804 (2001-04-01), Spriegel
patent: 6216965 (2001-04-01), Chao
patent: 6220527 (2001-04-01), Chen et al.
Harrison & Egbert
Mar Michael
Nguyen Dinh Q.
Shin Tai Spurt Water of the Garden Tools Co., Ltd.
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