Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1992-10-14
1995-06-27
DePumpo, Daniel G.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277207A, 285187, 285368, F16J 1512
Patent
active
054273862
ABSTRACT:
A protective seal and method for protecting flow line joints from leakage of fluid conveyed thereby when exposed to elevated temperatures, such as fire, employs the use of intumescent material and a channeling structure for channeling the intumescent material into a separation gap caused by thermal separation of adjacent flow line pieces, e.g., pipe sections. The channeling structure may be a channel formed in the connecting flanges, or in a gasket interposed between the pieces. Alternatively, the channeling structure may be an annulus for directing the intumescent material radially inwardly into the separation gap or a channeling strip in a spiral wound gasket. Where a channel is provided in the flange or gasket, a seal element may be used, and the intumescent material material provides a driving force to advance the seal into the separation gap. The intumescent material material may be bounded by a diaphragm or contained within a bladder. The method is directed to channeling intumescent material into the separation gap by various channeling structures.
REFERENCES:
patent: 1825962 (1931-10-01), Laird
patent: 1965273 (1934-07-01), Wilson
patent: 2462493 (1949-02-01), Hamer
patent: 3836183 (1974-09-01), Battle
patent: 3869132 (1975-03-01), Taylor et al.
patent: 3930656 (1976-01-01), Jelinek
patent: 4109923 (1978-08-01), Tuckmantel
patent: 4268070 (1981-05-01), Adams
patent: 4288105 (1981-09-01), Press
patent: 4406467 (1983-09-01), Burger et al.
patent: 4669759 (1987-06-01), Harbeke
patent: 4673187 (1987-06-01), Hanson et al.
patent: 4690438 (1987-09-01), Kanczarek
patent: 4776600 (1988-10-01), Kohn
patent: 4790544 (1988-12-01), Kemp
patent: 4795166 (1989-01-01), Irmler
patent: 4826220 (1989-05-01), Ross
patent: 4871181 (1989-10-01), Usher et al.
Corrosion Control Corp.
DePumpo Daniel G.
Martin Timothy J.
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