Remote function verification of low pressure and vacuum relief d

Details Remote function verification of low pressure and vacuum relief d Remote function verification of low pressure and vacuum relief d

1998-09-04

2000-02-01

Ferensic, Denise L.

Fluid handling

Line condition change responsive valves

Bi-directional flow valves

137554, 137556, 32420715, F16K 1726, G01B 714

Patent

active

060191260

ABSTRACT:
A method and system for automatically verifying the function of pressure and vacuum relief valves for low-pressure storage vessels and tanks, which can be remotely operator actuated to insure venting when emergencies occur, allows for on-line verification of the relief valve functionality and proper operation. The system periodically checks the set pressure of the valve by attempting to lift its pallet and measures the deviation from a set point. It also indicates unplanned occurrence of valve lifting, as a result of unforeseen upset in storage vessel pressure. This apparatus is electrically operated and controlled and relies on electromagnetic means for tractive or pull-force, as well as for detecting valve lifting.

REFERENCES:
patent: 3250293 (1966-05-01), Adams et al.
patent: 3701368 (1972-10-01), Tirelli et al.
patent: 3791408 (1974-02-01), Saitou et al.
patent: 3850196 (1974-11-01), Fales
patent: 3967648 (1976-07-01), Tirelli
patent: 4255967 (1981-03-01), Grymonprez et al.
patent: 4257445 (1981-03-01), Cook et al.
patent: 4386626 (1983-06-01), Hehl
patent: 4428223 (1984-01-01), Trevisan
patent: 4491111 (1985-01-01), Eheim et al.
patent: 4504198 (1985-03-01), Toyda et al.
patent: 4548233 (1985-10-01), Wolfges
patent: 4557136 (1985-12-01), Greenghalf
patent: 4572237 (1986-02-01), Thompson
patent: 4651670 (1987-03-01), Silverwater
patent: 4761999 (1988-08-01), Thompson
patent: 4802502 (1989-02-01), Williams
patent: 4949288 (1990-08-01), Bookout
patent: 5036275 (1991-07-01), Munch et al.
patent: 5048560 (1991-09-01), Janotta et al.
patent: 5144977 (1992-09-01), Eggerton et al.
patent: 5210490 (1993-05-01), Munch et al.
patent: 5224512 (1993-07-01), Nogami et al.
patent: 5236012 (1993-08-01), Lin
patent: 5275036 (1994-01-01), Shculz et al.
patent: 5311903 (1994-05-01), Poulin
patent: 5323142 (1994-06-01), Fain
patent: 5442957 (1995-08-01), Caron
patent: 5497725 (1996-03-01), Thiesen et al.
patent: 5583434 (1996-12-01), Moyers et al.
patent: 5620024 (1997-04-01), Yonezawa

Affiliated with

Also associated with

Rating

Remote function verification of low pressure and vacuum relief d does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Remote function verification of low pressure and vacuum relief d, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Remote function verification of low pressure and vacuum relief d will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-930540