Thin board holding device and method of and apparatus for measuring thickness of thin board
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 10, 2001
Grant Date -
N/A
app pub date -
Apr 14, 1997
filing date -
Apr 16, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A thin board holding device 2A for holding a thin board in a plane state to measure the thickness of a thin board is disclosed, which has a number of spot supports 3 with adsorbing portion for holding a thin board 1 attached by suction to the top. The thin board 1 is held in a multiple point support fashion to the spot supports 3. By moving a measuring terminal of a measuring instrument to a measuring point on the thin board, which has one surface of the thin board 1 set on the thin board holding device 2A, the level of the other surface of the thin board 1 from a reference surface A supporting the thin board holding device at a reference position is measured. The dimension from the reference position A to a thin board adsorption surface 3a of the spot support 3 is used as a computational constant, and the thickness of the thin board is calculated from the measured level of the other surface of the thin board 1 and the computational constant.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully