Dentistry – Apparatus – Having intra-oral dispensing means
Patent
1981-04-27
1983-11-22
Shepperd, John W.
Dentistry
Apparatus
Having intra-oral dispensing means
200153LA, 200153J, 200159A, A61G 1702
Patent
active
044166281
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.
REFERENCES:
patent: 1781962 (1930-11-01), Stirling
patent: 2470701 (1949-05-01), Jacobs
patent: 2945111 (1960-07-01), McCormick
patent: 2978555 (1961-04-01), Jones
patent: 4094311 (1978-06-01), Hudson
patent: 4141352 (1979-02-01), Ebner et al.
Cammack Michael A.
Elkins Christopher W.
Hickman Clarence J.
Mullins Keith M.
Drake Hugh H.
Kidorf Renee
Shepperd John W.
Teledyne Industries Inc.
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