Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1979-01-19
1980-11-18
Ward, Jr., Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277125, 277188A, 277DIG6, 166196, F16J 1518, F21B 2300
Patent
active
042341973
ABSTRACT:
A seal system is provided with a series of annular seal assemblies separated by relatively rigid spacing members and may be preferably adapted to selectively sealing engage a packer apparatus within a well bore conduit, during the completion or workover of a subterranean oil or gas well. Preferably, each seal assembly comprises four annular seal members in sequence. The outermost seal members are formed from a thermoplastic polymer having a coefficient of expansion greater than that of the rigid spacing members and the conduit, with physical resistance to corrosive chemicals and high temperature and pressure environments. The outermost member has a physical hardness sufficient to withstand extrusion into a gap defined between the rigid spacing member and the conduit by pressure transmitted from the rigid spacing member. One of the inner seal members is a flexible perfluoro polymer with enhanced permanent set and cold flow. The second of the inner seal members is an elastomer derived from the copolymerization of tetrafluoroethylene and perfluoroethers.
REFERENCES:
patent: 2527225 (1950-10-01), Langstaff et al.
patent: 2612953 (1952-10-01), Morgan et al.
patent: 3059699 (1962-10-01), Brown
patent: 3554280 (1971-01-01), Tucker
patent: 3907307 (1975-09-01), Maurer et al.
patent: 4050701 (1977-09-01), Webb
patent: 4169605 (1979-10-01), Nishimoto et al.
Baker International Corporation
Norvell, Jr. William G.
Ward, Jr. Robert S.
LandOfFree
Conduit sealing system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Conduit sealing system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Conduit sealing system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-595316