Seal including a non-metallic abradable material

Details Seal including a non-metallic abradable material Seal including a non-metallic abradable material

1982-08-23

1984-07-17

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277228, 277DIG6, 415174, F16J 1516, F16J 1544, F01D 1108

Patent

active

044601859

ABSTRACT:
An abradable seal member, which can be a component of a rotary seal in juxtaposition with another member, includes a non-metallic abradable material comprising a halogenated hydrocarbon, for example Teflon material. Such a material, which preferably is porous, has a solids content of at least about 40 weight %, a heat of combustion of no more than about 4000 BTU per pound, the halogenated hydrocarbon being at least about 60 weight % halogen.

REFERENCES:
patent: Re30600 (1981-05-01), Long et al.
patent: 2840343 (1958-06-01), Brandt, Jr. et al.
patent: 2951721 (1960-09-01), Asp
patent: 2998991 (1961-09-01), Spencer
patent: 3512790 (1970-05-01), Mancel
patent: 3547455 (1970-12-01), Daunt
patent: 3799128 (1974-03-01), Small
patent: 4207024 (1980-06-01), Bill et al.
patent: 4257735 (1981-03-01), Bradley et al.

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