Drain fitting with built-in pump

Details Drain fitting with built-in pump Drain fitting with built-in pump

1981-10-01

1983-10-25

Freeh, William L.

Pumps

With condition responsive pumped fluid control

Inlet pressure increase opens bypass from pump inlet to...

417360, 417424, F04B 4908, F04B 1700

Patent

active

044115997

ABSTRACT:
A drain fitting has a vessel formed with a laterally open housing outlet, at least one inlet, and an internal seat at the outlet. A pump is provided in the vessel and has a pump housing secured to the seat and having a pump output extending into the outlet and a pump intake, an impeller displaceable to move liquid through the housing from the intake to the output, and a motor in the housing driving the impeller. A check valve is provided in the pump output for preventing liquid flow back into the pump housing as well as means releasably securing the pump on the seat in the vessel. The pump housing is substantially closed and has its intake substantially lower than its output so that it acts as a gas trap.

REFERENCES:
patent: 2347544 (1944-04-01), DeCosta et al.
patent: 2739662 (1956-03-01), Sofia
patent: 3144876 (1964-08-01), Frye
patent: 3220351 (1965-11-01), Kling
patent: 3720488 (1973-03-01), Bood
patent: 4080104 (1978-03-01), Brown, Jr.

Affiliated with

Also associated with

Rating

Drain fitting with built-in pump does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drain fitting with built-in pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drain fitting with built-in pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-710264