The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 13, 1995

Filed:

Apr. 28, 1993
Applicant:
Inventors:

Hans Helfrich, Mannheim, DE;

Hermann Landgraf, Lorsch, DE;

Josef Hain, Laudenbach, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05G / ; A61C / ; H01H / ;
U.S. Cl.
CPC ...
74561 ; 74560 ; 74512 ; 433101 ; 200 865 ;
Abstract

A foot control mechanism for a dental apparatus has a tiltable actuation member mounted on a base part and an arrangement for holding the tiltable actuation member in a neutral position, which requires sufficient force to move the actuation member in either direction from the neutral position to a switch position. To accomplish this, the structure includes a mounting arrangement utilizing a pair of spaced-apart bearings extending parallel to each other which bearings receive projections on the other element and, preferably, a catch member is provided which provides a resistant force from movement from the neutral position.


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