发明名称 Packingless bellows seal
摘要 Disclosed is a static seal suitable for sealing a pull rod or the like to an opening through which the rod passes into a hydraulic conduit. This static seal can be used in a wide variety of apparatus including for example spray coating guns, both electrostatic and non-electrostatic, valve assemblies and the like. Novel static sealing arrangements at each end of a non-machined extruded bellows provide packingless bellows sealing between the rod and the opening. Such a sealing arrangement is compatible with the highly desirable materials of the fluorinated hydrocarbon group, commonly known by the trade name Teflon.
申请公布号 US4126321(A) 申请公布日期 1978.11.21
申请号 US19770848178 申请日期 1977.11.03
申请人 NORDSON CORPORATION 发明人 HARJAR, MARTIN J.;HASTINGS, DONALD R.
分类号 B05B1/30;B05B5/03;B05B7/12;F16J15/52;(IPC1-7):B05B7/12;F16J15/56 主分类号 B05B1/30
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