Weep hole plug for a fluid circulating pump
US5490762A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1995 |
| Grant date | Feb 13, 1996 |
| Priority date | — |
| Expiry date | Mar 21, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/6022
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a fluid circulating pump utilizing a plug assembly sealingly disposed within a weep hole located in a secondary compartment of a cavity. The plug assembly is disposed within the weep hole and has a tube portion extending a predetermined length into the secondary compartment. A connector holds the plug assembly within the second compartment and sealingly engages the plug assembly with the weep hole. 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 assembly to signal that pump repair is needed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.