Releasing device in core barrel grapplers

Details Releasing device in core barrel grapplers Releasing device in core barrel grapplers

1981-10-05

1984-02-14

Cherry, Johnny D.

Handling: hand and hoist-line implements

Grapple

Well type

166125, 294 8622, E21B 3112

Patent

active

044312253

ABSTRACT:
A device for disengaging a grappling device from a core barrel, which are lowered in an engaged or connected state into a hollow drill rod, is actuated by a recess made in the drill rod bore, when the barrel approaches or assumes a working position in the drill rod, and is thereby displaced by a spring for disengaging the mechanism connecting the grappling device and barrel.

REFERENCES:
patent: 2948340 (1960-08-01), Bostock et al.
patent: 2980185 (1961-04-01), Daffin
patent: 3537743 (1970-11-01), Martinsen
patent: 3701389 (1972-10-01), Egnelov

Affiliated with

Also associated with

Rating

Releasing device in core barrel grapplers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Releasing device in core barrel grapplers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Releasing device in core barrel grapplers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2371342