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## Methods and apparatuses for generating a seal between a conduit and a reservoir well Applicant: SmithKline Beecham Corporation, USA This patent is concerned with the sealing of microbiological samples, and the prevention of carry over between samples during operations, such as sampling with a p
This invention relates to a process for producing a linear reinforcing insert, such as a U-section energiser and retainer, for a linear seal -in particular for sealing doors and windows on vehicle bodies. The insert has regularly recurrent cross-sectional variations in the longitudinal direction of
seal has a moulded wave profile, or a series of semicircular arches that contact the groove wall. A number of different patterns are illustrated.
basic composition of the raw material is composed of 16-28 wt% of NBR, serving as the rubber; 4-8 wt% of an aramid fibre, serving as the reinforcing fibre; 10-20 wt% of a needlelike dolomite, serving as the reinforcing fibre; 8-20 wt% of silica particles, serving as the filler; and the balance, an i