Non-drip fluid circulating pump

Details Non-drip fluid circulating pump Non-drip fluid circulating pump

1993-06-30

1994-08-16

Look, Edward K.

Rotary kinetic fluid motors or pumps

Including means for handling working fluid leakage

Leakage through seal between runner or shaft and static part

41742311, F04D 2900

Patent

active

053381530

ABSTRACT:
The design and construction of past fluid circulating pumps, having a weep hole, allowed small amounts of leaked fluid to escape through the weep hole and into the atmosphere resulting in environmental concern and lower customer perception of the product. The present invention overcomes these problems by providing a fluid circulating pump utilizing a plug means sealingly disposed within a weep hole located in a secondary compartment of a cavity. The plug means is sealingly disposed within the weep hole and has a tube portion extending a predetermined length into the secondary compartment. The length of the tube portion is sufficient to contain the leaked fluid within the secondary compartment until it can be evaporated, substantially eliminating fluid leakage into the atmosphere. However, excessive fluid build-up may occur within the secondary compartment when the pump is damaged. The present invention allows the excessive fluid to leak out to the atmosphere through a bore in the plug means to signal that pump repair is needed.

REFERENCES:
patent: 5154576 (1992-10-01), Dorski et al.
patent: 5226786 (1993-07-01), Dorski et al.

Affiliated with

Also associated with

Rating

Non-drip fluid circulating 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 Non-drip fluid circulating pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-drip fluid circulating pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-947250