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๐ SIMILAR VOLUMES
include a deformable portion interconnected to a vapour barrier portion by way of a mechanical or adhesive interlocking connection. This deformable portion can be made from an elastomeric material. The vapour barrier portion can be formed from a wide variety of materials that inhibit permeation of t
## Seal ring Applicans: NOK Corporation, Japan This patent describes a design of butt joint for pistons rings which from the description are used as shaft seals. The rings have a stepped butt joint and one half of the joint has a surface that slopes in the circumferential direction and is engaged
System for
A high flow rate low pressure safety valve with a teble-tennis ball seating on a neoprene O-ring has been successfully fabricated and used on the intake and exhaust lines of a 4He transfer pump. This gas-tight valve opens at differential pressures less than 0.5 kN m -2 and allows 4 He gas flow rates