Sleeves

Details Sleeves Sleeves

1975-07-31

1976-09-07

Rothberg, Samuel B.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277170, 277DIG2, 277212F, F16L 1900, F16J 900

Patent

active

039791300

ABSTRACT:
An improved open ended frusto conical sleeve member suitable for use as a sealing interface between the co-operating mating surfaces of a tapered male/female push fit type glassware joint is disclosed. The sleeve member, which has a wall thickness of less than 1.5 mm includes at least two integral, generally circumferential ribs and an external annular flange for gripping during assembly and disassembly of a joint incorporating the sleeve member. The sleeve member, the ribs and the annular flange are constructed from a material having a static coefficient of friction of less than 0.2, a hardness of from 50 to 80 on the Shore D scale, and which is resistant to thermal degradation up to 200.degree.C and to structural degradation when immersed in a corrosive chemical for 12 hours at 50.degree.C.

REFERENCES:
patent: 2396491 (1946-03-01), Chamberlain
patent: 3080183 (1963-03-01), Luertzing et al.

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