Jar mechanism

Details Jar mechanism Jar mechanism

1990-06-22

1991-10-01

Melius, Terry L.

Wells

With jar means for releasing stuck part

175297, 175299, E21B 31113

Patent

active

050524852

ABSTRACT:
A jar mechanism is described, which comprises a piston (5) movably mounted in a fluid chamber (9). A jar member (2) is releasably coupled to the piston (5) by a release device (3, 4; 3, 38, 39, 40, 54, 64) so that when the piston (5) is in a first position in the fluid chamber (9), the jar member (2) is coupled to the piston (5) by the release device (3, 4; 3, 38, 39, 40, 54, 64). A first force exerted on the jar member (2) moves the piston (5) to a second position within the fluid chamber (9) against the resistance of the fluid (11). When the piston (5) is in the second position, the action of the first force applied to the jar member (2) actuates the release device (3, 4; 3, 38, 39, 40, 54, 64) to enable the jar member (2) to be uncoupled from the piston (5).

REFERENCES:
patent: 3949821 (1976-04-01), Raugust
patent: 4007798 (1977-02-01), Gazda
patent: 4142597 (1979-03-01), Johnston
patent: 4181186 (1980-01-01), Blanton
patent: 4230197 (1980-10-01), Wenzel
patent: 4478284 (1984-10-01), Tomm et al.

Affiliated with

Also associated with

Rating

Jar mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1748312