Push-button switch as used in oral hygiene appliance
US4416628A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1981 |
| Grant date | Nov 22, 1983 |
| Priority date | — |
| Expiry date | Apr 27, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H15/102
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An oral hygiene appliance is of the kind which includes a supply of liquid, a pump and a hand-held tip for directing the liquid where desired. A housing defines a cavity which has a surrounding wall closed by opposing end walls, the pump being seated within the cavity. A reservoir is closed at one end and has a shape in conformity with the housing to telescope thereover in covering relationship. Defined in one end of the reservoir is a valve seat which cooperates with a valve that closes during removal of the reservoir from the housing. On that end of the reservoir also is a coupling element which cooperates with a coupling member disposed in the surrounding wall of the housing. When that coupling relationship is established, the reservoir is seated on top of a side surface of the housing which, in turn, is lying on a table or the like. An outlet in the housing communicates with the hand-held tip and the pump is connected between that outlet and the coupling member. Particular pump structure, electrical switching mechanism and other mounting and assembly features are described and illustrated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.