Filter assembly having a bypass passageway and method

Details Filter assembly having a bypass passageway and method Filter assembly having a bypass passageway and method

2007-07-17

2007-07-17

Mai, Lanna (Department: 3637)

Boring or penetrating the earth

With below-ground tool drive prime mover

Fluid rotary type

C166S205000, C210S132000, C210S430000

Reexamination Certificate

active

10984466

ABSTRACT:
A filter assembly including a primary flow passageway having at least one filter deployed therein and a secondary flow passageway having a bypass filter deployed therein is provided. The filter assembly further includes a bypass valve assembly configured to selectively open and close the secondary flow passageway when a fluid pressure is respectively above and below an adjustable, predetermined threshold value. Exemplary embodiments of this invention may be coupled to a drill string and advantageously utilized to filter drilling fluid downhole. Such embodiments tend to advantageously improve the filtering efficiency and safety of drilling operations.

REFERENCES:
patent: 3283902 (1966-11-01), Farris et al.
patent: 4495073 (1985-01-01), Beimgraben
patent: 5160037 (1992-11-01), LeCour
patent: 5762137 (1998-06-01), Ross et al.
patent: 5857521 (1999-01-01), Ross et al.
patent: 5885447 (1999-03-01), Theisen et al.
patent: 6155342 (2000-12-01), Oneal et al.
patent: 6296055 (2001-10-01), Taylor
patent: 6571869 (2003-06-01), Pluchek et al.
patent: 6598685 (2003-07-01), Mashburn
patent: 2002/0011435 (2002-01-01), Koltunov
patent: WO 02/62447 (2002-01-01), None

Affiliated with

Also associated with

Rating

Filter assembly having a bypass passageway and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Filter assembly having a bypass passageway and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filter assembly having a bypass passageway and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3754140