Air admittance valve for use in drainage systems

Details Air admittance valve for use in drainage systems Air admittance valve for use in drainage systems

1988-06-23

1989-09-19

Michalsky, Gerald A.

Fluid handling

Line condition change responsive valves

Direct response valves

4211, 1375278, F16K 1503, E03F 508

Patent

active

048678023

ABSTRACT:
An air admittance valve for use in drainage systems comprising a housing with an opening therein through which air passes into the drainage system, and a pivoted closure member adapted to close the opening and openable on a pressure difference between the system and the exterior.

REFERENCES:
patent: 178137 (1876-05-01), Garland
patent: 623478 (1899-04-01), Keene
patent: 735007 (1903-07-01), Watson
patent: 1978507 (1934-10-01), Rand
patent: 2800139 (1957-07-01), Langdon
patent: 3565107 (1971-02-01), Bunch
patent: 3815629 (1974-06-01), Oberholtzer
patent: 3941151 (1976-03-01), Biddle
patent: 4535807 (1985-08-01), Ericson
patent: 4545398 (1985-10-01), Van Olst
patent: 4556084 (1985-12-01), Frawley

Affiliated with

Also associated with

Rating

Air admittance valve for use in drainage systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Air admittance valve for use in drainage systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air admittance valve for use in drainage systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-366561