发明名称 |
O-ring inspection apparatus |
摘要 |
A pair of mandrels crossing at a right angle are moved into the center of an O-ring and then spread apart to stretch the O-ring around the mandrels to secure it and to form it into a twisted path. The mandrels are rotated to drive the O-ring through the twisted path so that the angular orientation of any given cross section of the O-ring changes as it advances around the path. An optical measurement apparatus senses cross section diameter of the O-ring at several locations. A support for one of the mandrels accommodates a load cell to measure the force developed by stretching the O-ring to provide a measure of O-ring elasticity.
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申请公布号 |
US4122705(A) |
申请公布日期 |
1978.10.31 |
申请号 |
US19770809790 |
申请日期 |
1977.06.24 |
申请人 |
GENERAL MOTORS CORPORATION |
发明人 |
ROBER, HERBERT E. |
分类号 |
G01N3/08;G01N33/00;G01N33/44;(IPC1-7):G01N3/08 |
主分类号 |
G01N3/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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