Pump and method having reduced pressure and friction for...

Details Pump and method having reduced pressure and friction for... Pump and method having reduced pressure and friction for...

2011-01-11

2011-01-11

Mendez, Manuel A (Department: 3763)

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

Reexamination Certificate

active

07867196

ABSTRACT:
A pump includes a pumping chamber having an inlet, an assembly of a rotating hub and blades disposed in the pumping chamber, a connection to a fluid source and a connection to an air source. According to one embodiment, at least one conduit relieves pressure on the assembly by conducting fluid. According to another embodiment, the blades each have a radially outer edge with a shape minimizing friction between the radially outer edge and an inner surface of the pumping chamber. Methods for providing fluid are also provided.

REFERENCES:
patent: 3575530 (1971-04-01), Hall
patent: 3635583 (1972-01-01), Chilman et al.
patent: 3636609 (1972-01-01), Stahl
patent: 4236589 (1980-12-01), Griffith
patent: 4604089 (1986-08-01), Santangelo et al.
patent: 5019136 (1991-05-01), Elonen et al.
patent: 5484402 (1996-01-01), Saravia et al.
patent: 5542918 (1996-08-01), Atkinson
patent: 5718668 (1998-02-01), Arnett et al.
patent: 5807313 (1998-09-01), Delk et al.
patent: 6958058 (2005-10-01), Hunter et al.
U.S. Appl. No. 10/454,920, filed Jun. 2003, Hunter et al.

Affiliated with

Also associated with

Rating

Pump and method having reduced pressure and friction for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pump and method having reduced pressure and friction for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pump and method having reduced pressure and friction for... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2705809