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:
Feb. 15, 1983
Filed:
Dec. 08, 1981
Hans Spaeth, Kloten, CH;
Maag Gear-Wheel & Machine Company Ltd., Zurich, CH;
Abstract
A gear measuring machine for inspecting helical gears contains a feeler for sensing the tooth flank of the gear being tested. Since the contact point between the feeler and the tooth flank is located by the amount of the helix angle below a horizontal line extending through the feeler tip it is necessary when recording a profile diagram of the gear tooth to take into account the distance r.multidot.cos .beta..sub.b to obtain an exact zero point for the start of the profile diagram. To determine such zero point the gear measuring machine uses a digital circuit arrangement containing a generating or roll path counter and a correction counter. The correction counter continues to count until its count has reached a value corresponding to the aforementioned distance. Then the generating or roll path counter is started.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile