Actuating drive having a safety device

Details Actuating drive having a safety device Actuating drive having a safety device

1993-11-12

1994-11-22

Rivell, John

Fluid handling

Destructible or deformable element controlled

137 79, 251 14, 251 90, F16K 1738

Patent

active

053659635

ABSTRACT:
An actuating drive, particularly for control valves and shut-off valves or the like, comprising a safety device that automatically brings an actuation element into a safety position, particularly a closed position, given a limit temperature that upwardly exceeds the normal temperature range, particularly in case of fire, having a swelling compound that presses the actuation element in the direction toward the safety position when it expands and which multiplies in volume upon formation of cavities when the limit temperature is upwardly exceeded.

REFERENCES:
patent: 4072159 (1978-02-01), Kurosawa
patent: 4240455 (1980-12-01), McGee
patent: 4267853 (1981-05-01), Yamaguchi et al.
patent: 4651763 (1987-03-01), Scobie et al.
patent: 4714233 (1987-12-01), Oates
patent: 4827963 (1989-05-01), Baker et al.

Affiliated with

Also associated with

Rating

Actuating drive having a safety device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Actuating drive having a safety device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Actuating drive having a safety device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1984898