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Sealing Technology Number 26 ConteIlts o Surface treatment yields low friction polymers l Next generation gasket material W=@c m 2 e Polyurethane u-cup double lip seal o Standard agitator seal of modular design * Improved seal for abrasive tailings services l Heavy duty piston sealing L Measuring emissions with the flush gas technique l Galvanic corrosion inhibitors for packing * John Crane wins its largest ever seals contract l D&corn receives QS-9000 registration e Joint venti in ChIna * Fluid sealing technology course * Name change far TEA Sealing Materials * Mechanical se& manufacturing facility expands * EG&G app&nt.a chief financial officer FctaWres 8 Contact: R.E. Components Limited, Station Road,
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This patent describes an isolation damper for use in air delivery trunking. The damper -which may be elliptical -is provided with a seal to provide an air-tight cutoff. It can be used to shut off airflow to prevent circulation of hazardous contaminants in clean environments.