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US 5,610,379 AGranted
Liquid and gas impenetrable switch
AssigneeNicolay Verwaltungs-GmbH
InventorsEdwin Muz, Dieter Schwarz
Life of this patent
Estimating the term…
Abstract
A liquid and gas impenetrable switch, especially for electrical surgical instruments, has two pairs of contacts spaced from one another. The movable contact element of each pair is arranged between the associated fixed contact element and a diaphragm. With elastic deformation, the diaphragm and movable contacts can be moved by the switch operating force into contact with the fixed contact elements. The diaphragm covers the movable contact elements and is supported by a rocker.
Claims14
A switch which is liquid and gas impenetrable for sterilizable instruments, comprising:
- first and second pairs of contacts spaced at a distance from each other, each of said contact pairs having a movable contact and a fixed contact;
- an elastically deformable diaphragm covering said movable contacts such that said movable contacts are between said diaphragm and said fixed contacts;
- switch operating means for exerting forces on said diaphragm to move said movable contacts into engagement with said fixed contacts;
- and
- a rigid rocker supporting said diaphragm and pivotally mounted relative to said contacts, said movable contacts being entirely located on only one side of said rocker remote from said diaphragm and said switch operating means to prevent simultaneous activation of both of said contact pairs.
2 more elements
Dependencies are inferred from the claim text.