Pipe joints or couplings – Packed – Screw thimble-gland
Reexamination Certificate
1998-12-22
2001-03-27
Browne, Lynne H. (Department: 3629)
Pipe joints or couplings
Packed
Screw thimble-gland
C285S382500
Reexamination Certificate
active
06206437
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to a male hose connector for garden hoses.
Most hose female metal connectors are of machined components and therefore of high quality, crushproof character. However, many garden hose male metal connectors are either totally of low quality stamped components which are not crushproof, or are a combination of a machined crushproof male end and a stamped stem secured to the male end by soldering (
FIG. 4
) or crimping (FIG.
5
). The soldered joint in the first type is intended to seal the joint against leakage. Unfortunately, the soldering procedure adds expense to the manufacturing operation. The crimped joint is intended to cause the outer end of the stamped liner to extend clear through the machined male end and contact the rubber washer in a connected female fitting to thereby seal against leakage. However, this extended crimped portion is clearly visible and creates a low quality impression to the potential purchaser.
SUMMARY OF THE INVENTION
The present invention provides a hose male metal connector employing a machined male end and an interconnected stamped stem in a novel fashion that produces a high quality product wherein the stem does not extend to the outer end of the male end and therefore is unnoticeable, yet has an effective seal to the male end. The stamped metal stem, preferably of brass, is crimped over an annular shoulder of the male end to prevent its axial retraction, is sealed to the male end by an internal O-ring, and has an axially splined inter-engagement to the male end to prevent rotation between these components.
REFERENCES:
patent: 3787945 (1974-01-01), Pasek
patent: 4142843 (1979-03-01), Kish
patent: 4330144 (1982-05-01), Ridenour
patent: 4765661 (1988-08-01), Fukushima
patent: 4887853 (1989-12-01), Flowers
patent: 4902048 (1990-02-01), Washizu
patent: 4905766 (1990-03-01), Dietz
patent: 5484174 (1996-01-01), Gotoh
patent: 5586791 (1996-12-01), Kirchner et al.
patent: WO 94/09305 (1994-04-01), None
Browne Lynne H.
Dunwoody Aaron
Lakeshore Automatic Products Inc.
Price Heneveld Cooper DeWitt & Litton
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