Check valve for a submersible turbine pump

Details Check valve for a submersible turbine pump Check valve for a submersible turbine pump

2008-01-15

2008-01-15

Stashick, Anthony (Department: 3746)

Pumps

Motor driven

Electric or magnetic motor

C417S422000

Reexamination Certificate

active

10959899

ABSTRACT:
The present invention provides a submersible turbine pump (STP) comprising a check valve located within a hydraulics cavity, wherein the STP provides the ability to depressurize the hydraulics cavity by relieving a pressure differential between an inlet side and an outlet side of the check valve. In general, the STP is comprised of a casing body comprising a check valve extraction housing and the hydraulics cavity. The check valve is located within the hydraulics cavity and is comprised of a check valve stem, an inlet side, and an outlet side. The check valve extraction housing comprises a lock-down screw adapted to attach to the check valve stem and apply a force to the check valve to open the check valve, thereby relieving the pressure differential between the inlet side and the outlet side.

REFERENCES:
patent: 2634752 (1953-04-01), Bertea
patent: 2952247 (1960-09-01), Swanson
patent: 3172572 (1965-03-01), Brown et al.
patent: 5544518 (1996-08-01), Hart et al.
patent: 6223765 (2001-05-01), Small et al.
patent: 6834534 (2004-12-01), Halla et al.
patent: 2004/0045343 (2004-03-01), Hutchinson
patent: 577938 (1946-06-01), None

Affiliated with

Also associated with

Rating

Check valve for a submersible turbine pump does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Check valve for a submersible turbine pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Check valve for a submersible turbine pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3927759