Drill bit and method for inserting, expanding, collapsing,...

E - Fixed Constructions – 21 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

E21B 10/66 (2006.01) E21B 10/48 (2006.01) E21B 10/633 (2006.01) E21B 23/02 (2006.01)

Patent

CA 2739664

A drill bit comprising a bit body connectable to a drill string at an first end, which bit body is provided with a longitudinal pas-sageway extending from an opening at the first end to a port at a second end a closure element for closing the passageway, when the closure ele-ment is in a closing position, which closure element is removable, and wherein the closure element comprises a first and a second member which are movable relative to each other between an expanded configuration and a collapsed configuration, in which collapsed configuration, the closure el-ement is retractable through the passageway to the first end.

L'invention porte sur un trépan comprenant un corps de trépan apte à être relié à un train de tiges, au niveau d'une première extrémité, lequel corps de trépan comporte un passage longitudinal s'étendant d'une ouverture au niveau de la première extrémité à un orifice au niveau d'une seconde extrémité, un élément de fermeture pour fermer le passage, lorsque l'élément de fermeture se trouve dans une position de fermeture, lequel élément de fermeture est amovible et comprend un premier et un second élément qui sont mobiles l'un par rapport à l'autre entre une configuration étendue et une configuration pliée, dans laquelle configuration pliée l'élément de fermeture est apte à être rétracté à travers le passage vers la première extrémité.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Drill bit and method for inserting, expanding, collapsing,... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drill bit and method for inserting, expanding, collapsing,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drill bit and method for inserting, expanding, collapsing,... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1377242

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.