Hydraulically released window mill

Details Hydraulically released window mill Hydraulically released window mill

E - Fixed Constructions

21

B

E21B 29/06 (2006.01) E21B 7/08 (2006.01)

Patent

CA 2754452

An affixation and release arrangement includes a first component having a fluid pressure chamber; a piston mounted in the first component and exposed to the fluid pressure chamber; a second component affixed to the first component through the piston, the pis-ton responsive to fluid pressure increase within the chamber to unaf-fix the second component from the first component. Methods are in-cluded.

La présente invention concerne un agencement de fixation et de libération, comprenant : un premier composant comportant une chambre de pression hydraulique ; un piston monté dans le premier composant, et exposé à la chambre de pression hydraulique ; un second composant fixé au premier composant via le piston, le piston répondant à l'augmentation de pression hydraulique dans la chambre pour séparer le second composant du premier composant. L'invention concerne également des procédés correspondants.

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