What the invention claimed is:
1. A pistol nozzle comprising:
a body, said body comprising a mounting shaft and a water outlet tube;
a cap fixedly fastened to said body, said cap comprising a center coupling tube coupled to the mounting shaft of said body and a water outlet connected to the water outlet tube of said body for output of water;
a spray-pattern disc rotatably supported on the center coupling tube of said cap, said spray-pattern disc comprising a center coupling hole coupled to the center coupling tube of said cap and a series of water outlets and a water seal portion equiangularly spaced around the center coupling hole of said spray-pattern disc for selectively receiving water from the water outlet of said cap;
a spray-pattern dial fastened to said spray-pattern disc for synchronous rotation with said spray-pattern disc on the center coupling tube of said cap, said spray-pattern dial comprising a center coupling hole coupled to the center coupling tube of said cap and a series of water outlets of different patterns corresponding to the water outlets of said spray-pattern disc; and
a control ring fastened to said spray-pattern dial for operation by hand to rotate said spray-pattern dial and said spray-pattern disc on the center coupling tube of said cap and to alternatively aim the water outlets of said spray-pattern dial and the water outlets of said spray-pattern disc at the water outlet of said cap; wherein:
said spray-pattern dial comprises a smoothly arched water hole extended along the border area of a front side thereof, an inner sealing flange stopped against said spray-pattern disc, an opening cut through said inner sealing flange in communication with said smoothly arched water hole; said spray-pattern disc comprises a bottom chamber adapted to receive water from the water outlet of said cap through one water outlet of said spray-pattern disc, and an opening in communication between said bottom chamber and the opening of said spray-pattern dial.
2. The pistol nozzle of claim 1 wherein said spray-pattern disc comprises a front water outlet aimed at one water outlet of said spray-pattern dial for output of water.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A vibration damping rubber composition comprising:
a diene-based rubber;
a vulcanizing agent of a bismaleimide compound selected from the group consisting of
N,N\u2032(4,4,-diphenyl-methane) bismaleimide represented by the following chemical formula (3), bis (3-ethyl-5-methyl-4-maleimidephenyl)methane represented by the following chemical formula (4), 2,2\u2032-bis 4-(4-maleimide phenoxy) phenylpropane represented by the following chemical formula (5), m-phenylenebis(methylene) bismaleimide represented by the following chemical formula (6), and m-phenylenebis (methylene) biscitraconimide represented by the following chemical formula (7),
\u2003wherein the vulcanizing agent is sulfur-free; and
a vulcanization accelerator.
2. The vibration damping rubber composition according to claim 1, wherein the vulcanization accelerator is a thiazole-based vulcanization accelerator.
3. The vibration damping rubber composition according to claim 2, wherein the thiazole-based vulcanization accelerator is dibenzothiazyl disulfide or 2-(4-morpholinodithio)benzothiazole.
4. The vibration damping rubber composition according to claim 1, wherein the vulcanization accelerator is thiuram-based vulcanization accelerator.
5. The vibration damping rubber composition according to claim 1, wherein a thiazole-based vulcanization accelerator and a thiuram-based vulcanization accelerator are used in combination.
6. The vibration damping rubber composition according to claim 1, wherein the diene-based rubber is at least one selected from a group consisting of natural rubbers, isoprene rubbers, butadiene rubbers, styrene-butadiene rubbers, and acrylonitride-butadien rubbers.