Airplane toilet drain valve assembly

Details Airplane toilet drain valve assembly Airplane toilet drain valve assembly

1991-04-24

1992-05-12

Walton, George L.

Fluid handling

With cleaner, lubrication added to fluid or liquid sealing...

Cleaning or steam sterilizing

137240, 137312, 251159, 251174, 251298, F16K 118, F16K 2500

Patent

active

051118394

ABSTRACT:
An improved airplane toilet drain valve assembly comprising a rotatable valve mounted within a housing and a moveable sealing member which is arranged in contact with the valve surface when the valve is in a closed position and which during operation of the valve is moved away from the valve surface thereby avoid wear or damage due to friction between the seal and rotating valve. The invention further comprises a scraper member mounted within the valve housing which prevents solid waste materials from coming into contact with the seals.

REFERENCES:
patent: 2316933 (1943-04-01), Chaplin
patent: 3485475 (1969-12-01), Moore et al.
patent: 3528448 (1970-09-01), Urban
patent: 3557822 (1971-01-01), Chronister
patent: 3799188 (1974-03-01), Chronister
patent: 4137935 (1979-02-01), Snowdon
patent: 4262688 (1981-04-01), Bialkowski
patent: 4338960 (1982-07-01), Ashdown
patent: 4354665 (1982-10-01), Ulveling et al.
patent: 4383546 (1983-05-01), Walters, Jr.
patent: 4962911 (1990-10-01), Soderberg

Affiliated with

Also associated with

Rating

Airplane toilet drain 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 Airplane toilet drain valve assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Airplane toilet drain valve assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2423500