Pressure balanced S-seal

Details Pressure balanced S-seal Pressure balanced S-seal

1987-01-21

1989-03-21

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277200, 277206R, F16J 1508

Patent

active

048136921

ABSTRACT:
A pressure balanced sealing ring having a substantially S-shaped, resilient cross section including two oppositely facing convolutions, a central leg coupling the convolutions and a pair of outer legs, each extending from one of the convolutions. The ring is advantageously formed of metal and seals against opposed axially facing but offset surfaces in an annulus between two concentic pipes or opposed axially facing surfaces at the interface formed by two aligned pipes. Each outer leg has a substantially circular sealing line, these sealing lines being radially offset from one another, adjacent the free distal edge of each leg, and spaced from the convolutions, In a modified embodiment, the sealing ring has more than two convolutions and additional legs to connect them. In another series of modified embodiments, the sealing ring has one or two restraining rings rigidly coupled to one or both of the outer legs to ensure the desired direction of torsional deflection under the action of the differential pressure. The sealing ring can also have its sealing lines axially offset as an alternative to their being radially offset.

REFERENCES:
patent: 2213414 (1940-09-01), Simpson
patent: 3099456 (1963-07-01), Hopp
patent: 3285632 (1966-11-01), Dunkle
patent: 3482302 (1969-12-01), Williams
patent: 3490777 (1970-01-01), Emmerson
patent: 3575432 (1971-04-01), Taylor
patent: 3797836 (1974-03-01), Halling
patent: 3857572 (1974-12-01), Taylor et al.
patent: 3869132 (1975-03-01), Taylor et al.
patent: 4067585 (1978-01-01), Rode
patent: 4121843 (1978-10-01), Halling
patent: 4168839 (1979-09-01), Hopp et al.
patent: 4421491 (1980-12-01), Hopp
patent: 4457523 (1984-07-01), Halling et al.
Toma Leko, S-Seal, Mar. 10, 1980, Private Disclosure to One of the Applicants, 1 page.

Affiliated with

Also associated with

Rating

Pressure balanced S-seal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pressure balanced S-seal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure balanced S-seal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-472734