Spherical sealing body used for the exhaust pipe joints and a me

Details Spherical sealing body used for the exhaust pipe joints and a me Spherical sealing body used for the exhaust pipe joints and a me

1988-12-28

1990-02-20

Simmons, David

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

156192, 156194, 277229, 277DIG6, F16J 1512, B32B 3106

Patent

active

049020242

ABSTRACT:
A method of manufacturing a spherical sealing body for use in exhaust pipe joints, including the steps of; laminating a flexible refractory sheet and a flexible wire net with each other, winding the laminated refractory sheet and the wire net to thereby form a cylindrical member, laminating the other flexible refractory sheet and an unsintered tape or film made of a polytetrafluoroethylene resin to each other, compressing to integrate the laminated other refractory sheet and the unsintered tape or film in a direction of the thickness thereof to thereby form an sliding face member, winding the sliding face member to an outer circumferential surface of the cylindrical member to thereby form a cylindrical preform body, and applying compression to the preform body in an axial direction of the preform body, and a spherical sealing body for use in exhaust pipe joints manufactured by the method above mentioned.

REFERENCES:
patent: 3341211 (1967-09-01), Houghton et al.
patent: 3932008 (1976-01-01), McCloskey et al.
patent: 4417733 (1983-09-01), Usher
patent: 4423544 (1984-01-01), Kashmerick et al.
patent: 4516782 (1985-11-01), Usher
patent: 4559248 (1985-04-01), Sumiyoshi et al.
patent: 4559249 (1985-09-01), Arigaya et al.
patent: 4607851 (1986-12-01), Usher

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