Patent · US Active

Hydraulically released window mill

US7878253B2 · kind B2 · utility

86Cited by

24References

16Claims

0Family size

Assignee

Baker Hughes Holdings LLC · US

Inventors

Calvin J. Stowe, II · Bellaire, US
James McNicol · Diemelstraße, US
Andrew D. Ponder · Houston, US

Key dates

Filing date	Mar 3, 2009
Grant date	Feb 1, 2011
Priority date	—
Expiry date	May 2, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T403/22
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

An affixation and release arrangement includes a first component having a fluid pressure chamber. A piston is mounted in the first component and exposed to the fluid pressure chamber. A second component is affixed to the first component through the piston, the piston being responsive to fluid pressure increase within the chamber to unaffix the second component from the first component.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.