Dishwasher overfill protection device
US5018550A · kind A · utility
19Cited by
11References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 19, 1990 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Oct 19, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7423
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A dishwasher is provided with an improved apparatus for protecting the tub from being overfilled in the form of a float having a float stem that is automatically captured upon insertion through a passage in the tub bottom wall such that the float will be restrained against disengagement from the tub bottom wall. The float is vertically movable to operate a control switch for regulating the level of water within the tub. Preferably a retaining ring is carried on a stem of the float which is automatically biased through a varying diameter keyway and is subsequently moved to a captured position below the member having the keyway.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.