Stylus

• US 6,799,378 B2
• Filed: 01/16/2002
• Issued: 10/05/2004
• Est. Priority Date: 01/16/2001
• Status: Active Grant

• Current Assignee: Dr. Johannes Heidenhain GmbH
• Original Assignee: Johannes Dr Heidenhain GmbH
• Inventors: Fischer, Roland, Schopf, Reinhold
• Primary Examiner(s): Gutierrez, Diego
• Assistant Examiner(s): JOHNSON, AMY COHEN
• Application Number:
  US10/050,224
• Publication Number:
  US 20020092192A1
• Time in Patent Office: 993 Days
• Field of Search: 335/56, 335/57, 335/58, 335/59, 335/60, 335/61, 335/03
• US Class Current: 33/556
• CPC Class Codes: G01B 5/012 Contact-making feeler heads therefor
• CPC Class Codes: G01B 5/016 Constructional details of contacts

Abstract

A stylus having a stem covered, at least partially, with a coating formed of an elastically or plastically deformable synthetic material.

Claims

1. A coordinate-measuring apparatus, comprising touch probe;

and a stylus connectable to the touch probe and including a stem having a breaking point formed as a circumferential notch;

a shrink sleeve covering at least a section of the stem containing the breaking point; and

means for connecting the stem with the touch probe and spaced from the breaking point.

2. A coordinate-measuring apparatus as set forth in claim 1, wherein the stem is formed as a one-piece member.

3. A stylus as set forth in claim 1, wherein the stem has means for connecting the stem with a touch probe, and wherein the breaking point is spaced from the connecting means.