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.
Patent No.:
Date of Patent:
Jan. 30, 2001
Filed:
Aug. 17, 1999
Karl-Heinz Bauer, Bad Neustadt, DE;
Ulrich Brueggemann, Bad Mergentheim, DE;
Joachim Storath, Salz, DE;
Walter Voll, Sanberg, DE;
Preh-Werke GmbH & Co. KG, Bad Neustadt/Saale, DE;
Abstract
An electrical rotary switch for several switch positions having a control knob mounted in a housing supported on first, second and third ball bearings that, guided by a cage disk, roll in a housing groove formed by an axial wall and a radial wall against which the ball bearings are loaded under an applied force of a conical bearing surface of the control knob. Axial and radial wall bearing surfaces respectively have first and second contact segments and first, second and third contact bands thereon that extend out of the housing via terminal lugs, the first contact segment and first contact band being shorted by the first ball bearing in predetermined switch positions. In a last switch position, contact occurs between the second contact segment (,) and the second and third contact bands (,) through the second and third ball bearings (,).