Mechanical detent jars

Details Mechanical detent jars Mechanical detent jars

1977-04-08

1979-03-06

Purser, Ernest R.

Boring or penetrating the earth

Below-ground impact members

With releasable means to detachably retain telescoping...

175299, 175300, 166178, E21C 1900

Patent

active

041425979

ABSTRACT:
A jar for use in facilitating the removal of stuck objects from wells. The jar has a telescoping assembly held in a collapsed position by a latching means urged into latching position by a resilient means so that the hammer of the jar is spaced from the anvil thereof. The release of the latching means is actuated by a predetermined longitudinal force applied to the upper end of the jar which overcomes the resilient means to cause the hammer to strike the anvil with a sudden impact translated by a connecting means from the jar to the stuck object.

REFERENCES:
patent: 2008743 (1935-07-01), Black
patent: 2126241 (1938-04-01), Black
patent: 3203482 (1965-08-01), Lyles
patent: 3406770 (1968-10-01), Arterbury et al.

Affiliated with

Also associated with

Rating

Mechanical detent jars does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-917533