Strain relief device for sump pump alarm
US6649839B2 · kind B2 · utility
23Cited by
16References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2002 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | May 15, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D15/0218
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A sump pump has a float operated alarm switch mounted on the top end of the pump housing for activating an alarm when water rises above a normal operating level. The alarm is in a remote enclosure with the pump power plug so that plugging in the unit automatically positions the alarm in a desirable location to be heard. The power cord and alarm switch wire extend through a flexible corrugated tube that is attached to the pump housing and the alarm enclosure by strain relief connections that do not compressively crush the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.