Non-return valve assembly

Details Non-return valve assembly Non-return valve assembly

1985-11-04

1987-02-24

Larson, Lowell A.

Surgery

Means and methods for collecting body fluids or waste material

Absorbent pad for external or internal application and...

13751215, 604369, A61F 1316

Patent

active

046455000

ABSTRACT:
A non-return valve assembly particularly for an incontinence device, includes a least three layers, the layers being secured together, the first layer being a sheet or film of perforated material, and the second layer is a sheet or film of material having cuts therein defining an array of flap valves. The third layer is a material having holes therein, each hole being in registry with an associated flap valve and being of a size to accommodate the flap of said valve. The flap valves may be arranged in a regular rectangular array and each flap of a valve is defined by three cuts in the sheet material, the cuts constituting three sides of a rectangle so that the flap of the valve can pivot out of the plane of the sheet material generally about a notional axis formed by the fourth side of the rectangle.

REFERENCES:
patent: 3556102 (1971-01-01), Davis
patent: 3814101 (1974-06-01), Kozak
patent: 3930096 (1975-12-01), Gilpatrick
patent: 4002034 (1977-01-01), Muhring et al.
patent: 4055180 (1977-10-01), Karami
patent: 4246901 (1981-01-01), Frosch

Affiliated with

Also associated with

Rating

Non-return valve assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Non-return valve assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-return valve assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-107138