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filter elements is described by this patent. The axial seal is supported by, and attached to, the filter media pack by a media pack seal member. Alternatively, the seal member may be carried by a frame, which is attached to the filter media pack by the media pack seal member. Numerous different systems are illustrated. A typical example uses a soft elastomer axial seal and a harder material for the media pack seal.
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as sealants and adhesives is fitted with a plastic guide bearing to replace previous metal bearings. The material used is 25% carbon-filled PTFE and a further feature is that the bearing may be fitted without tools.
This patent provides details of a rotary joint that is designed for the transfer of low-temperature refrigerant with a minimal running cost. The joint has a series of bellows-type mechanical seals isolating the transfer passages. Patent WO/2009/122782 appears to provide more detail on the sealing sy
Aristo Graphic Systeme showed the Aristomat gasket cutter. This is a digital seal stamping system where the cutter is controlled directly by a PC-based CAD system. It is capable of cutting difficult materials such as perforated sheet metal, as well as graphite and asbestos substitutes. Punch forms a