Pumps – Motor driven – Fluid motor
Reexamination Certificate
2006-06-20
2006-06-20
Freay, Charles G. (Department: 3746)
Pumps
Motor driven
Fluid motor
C251S361000, C137S533110, C137S533150
Reexamination Certificate
active
07063516
ABSTRACT:
A double diaphragm pump including an air manifold, two air chambers to either side of the air manifold, two pump chambers to either side of the air chambers and diaphragms extending between the air chambers and pump chambers are stacked together in horizontal assembly. Intake and discharge manifolds span this distance to intake and exhaust ports associated with the pump chambers. One-way valves having valve bodies with passages therethrough are arranged between the manifolds and the pump chambers. The valve bodies have inlet mounting surfaces and outlet mounting surfaces with circular attachment flanges radially extending from these mounting surfaces. The circular attachment flanges each define a central axis which on each valve body are parallel and laterally displaced from one another. Concavities extend inwardly from the valve bodies from the inlet and outlet mounting surfaces. The angle between the central axis in the direction of the adjacent mounting surface and the surface of either concavity is acute and does not exceed approximately 60°.
REFERENCES:
patent: 2018769 (1935-10-01), Tryon
patent: 3356036 (1967-12-01), Repp
patent: 4247264 (1981-01-01), Wilden
patent: 4549467 (1985-10-01), Wilden et al.
patent: 4623303 (1986-11-01), Henderson
patent: 5169296 (1992-12-01), Wilden
patent: 5213485 (1993-05-01), Wilden
patent: 5957670 (1999-09-01), Duncan
patent: 6168394 (2001-01-01), Forman et al.
patent: RE38239 (2003-08-01), Duncan
Connolly Bove & Lodge & Hutz LLP
Freay Charles G.
Wilden Pump and Engineering LLC
LandOfFree
One-way valve does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with One-way valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and One-way valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3614858