Seal for a joint or juncture – Process of dynamic sealing – Close proximity seal
Patent
1997-08-11
1999-05-25
DePumpo, Daniel G.
Seal for a joint or juncture
Process of dynamic sealing
Close proximity seal
277320, 277361, F16J 900
Patent
active
059063742
ABSTRACT:
A method for controlling leakage of a barrier fluid from a dual seal assembly of equipment, such as a pump or valve, employs a barrier fluid supply arrangement connected to a barrier fluid chamber of the dual seal assembly, a pressure intensifier mechanism coupled to a process fluid chamber and the barrier fluid chamber of the dual seal assembly and being operable to maintain the pressure of the barrier fluid at a preset level above the pressure of the process fluid in response to the absence of barrier fluid leakage from the dual seal assembly, and a pressure monitoring and control arrangement coupled to the barrier fluid supply arrangement and the pressure intensifier mechanism and being operable to detect and measure the decrease of the barrier fluid pressure below the preset level and to compensate therefor by actuating the barrier fluid supply arrangement to supply barrier fluid to the barrier fluid chamber until the barrier fluid pressure has increased above the preset level. The pressure monitoring and control arrangement is also operable to calculate and provide a readout of both the average and instantaneous leakage rate.
REFERENCES:
patent: 3176996 (1965-04-01), Barnett
patent: 3259390 (1966-07-01), Sanford
patent: 3297329 (1967-01-01), Smith et al.
patent: 3589737 (1971-06-01), Sedy
patent: 3749411 (1973-07-01), Lennon
patent: 3831381 (1974-08-01), Swearingen
patent: 3887195 (1975-06-01), Vinciguerra
patent: 3888495 (1975-06-01), Mayer
patent: 3987663 (1976-10-01), Repella
patent: 3994503 (1976-11-01), Dousse et al.
patent: 4014555 (1977-03-01), Jacottet
patent: 4114058 (1978-09-01), Albaric
patent: 4206928 (1980-06-01), Asano
patent: 4408766 (1983-10-01), Paech
patent: 4505115 (1985-03-01), Arbuckle
patent: 4510792 (1985-04-01), Morel et al.
patent: 4858937 (1989-08-01), Fairlie-Clarke et al.
patent: 4922719 (1990-05-01), Arbuckle
patent: 5031509 (1991-07-01), Cowan
patent: 5067874 (1991-11-01), Focte
patent: 5186277 (1993-02-01), Snuttjer et al.
patent: 5209495 (1993-05-01), Palmour
patent: 5244183 (1993-09-01), Calvin et al.
patent: 5249812 (1993-10-01), Volden et al.
patent: 5267736 (1993-12-01), Pietsch et al.
patent: 5345829 (1994-09-01), Yamauchi et al.
patent: 5502435 (1996-03-01), Ralston
patent: 5535136 (1996-07-01), Standifer
DePumpo Daniel G.
Flanagan John K.
Flanagan John R.
LandOfFree
Dual seal barrier fluid leakage control method utilizing linearl does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dual seal barrier fluid leakage control method utilizing linearl, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual seal barrier fluid leakage control method utilizing linearl will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-397717