Invention Grant
US09574689B2 Composite rotary union for hose reel 有权
软管卷盘复合旋转接头

Composite rotary union for hose reel
Abstract:
The present device provides a composite rotary union assembly which overcomes the disadvantages of prior art rotary union assemblies. The composite rotary union assembly of the present invention provides for supplying water or gas to a rotatable reel assembly, it also provides metal inserts for high wear areas of the rotary union assembly, including the threads, for longer useful life of the assembly while providing a resin structure for supporting and placing the metal portions.
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