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US Patent: 7,013,576
Measuring Device Using Multi-Start Threaded Spindle
Patentees:
Shuuji Hayashida (exact or similar names) - Kawasaki, Japan
Kouji Sasaki (exact or similar names) - Kawasaki, Japan
Yuichi Ichikawa (exact or similar names) - Kawasaki, Japan
Osamu Saito (exact or similar names) - Kawasaki, Japan
Seigo Takahashi (exact or similar names) - Kawasaki, Japan
Masamichi Suzuki (exact or similar names) - Kawasaki, Japan
Tetsuya Nakadoi (exact or similar names) - Higashihiroshima, Japan
Masahiko Tachikake (exact or similar names) - Higashihiroshima, Japan
Takahiro Nakamura (exact or similar names) - Higashihiroshima, Japan
Masafumi Okamoto (exact or similar names) - Higashihiroshima, Japan
Yuuzou Hashimoto (exact or similar names) - Kure, Japan

USPTO Classifications:
33/813, 33/820, 33/831

Tool Categories:
layout tools : measurement gauges

Assignees:
Mitutoyo Corp. - Kawasaki, Japan

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Dec. 26, 2002
Granted: Mar. 21, 2006

Patent Pictures:
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Description:
Oliff & Berridge, PLC - patent attorneys

Abstract

Provided is a measuring device 1 for measuring the size of an object comprising a body 2, and a spindle 3 which is screwed into the body 2 and axially advances and retracts by screwing with respect to the body 2, the measurement being based on the axial displacement of the spindle 3 effected by the revolution of the spindle, wherein the spindle is screwed into the body 2 via a multiple-start thread 31. Therefore, it is possible to displace the spindle 3 at a high speed, which improves the operability of the measuring device.

Application filed in Japan, 28 Dec 2001

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