Detergent dispenser in a dishwashing machine
US5396914A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 1992 |
| Grant date | Mar 14, 1995 |
| Priority date | — |
| Expiry date | Jun 29, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8597
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A dispenser device (10) for dispensing liquid detergent concentrate or cleaning agent into a washing zone of a washing appliance during a phase of a washing cycle. The washing appliance has a water pump (6) to provide the normal functions associated with washing cycles. Water pressure from the pump is utilised to squeeze or eject a predetermined quantity of concentrate from a container (28) into the washing zone at a desired phase of the washing process. In one adaptation, a container for the concentrate is in the form of a flexible bag (28) including an outlet nozzle (32) sealed until first placed in a receptacle (11) for use. In use, the nozzle (32) protrudes through an opening in a closure (12) of the receptacle into the washing zone. Via a second opening in the receptacle a small volume of water under pressure from the pump is directed under the timed control of a valve (26) at the required phase of the washing cycle into the closed receptacle. The receptacle may be compartmented with an inter-communicating orifice (20) separating one compartment (16) from another (18) whereby the bag in compartment (16), is subject to contact by hot water from the pump for a minimal time only.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.