Abrading – Work holder
Reexamination Certificate
2002-12-05
2010-06-22
Nguyen, Dung Van (Department: 3723)
Abrading
Work holder
C451S044000
Reexamination Certificate
active
07740525
ABSTRACT:
A device for working of material plates (1), such as glass panes, has a supporting member (25, 26, 29) for the material plate (1) and a tool (12, 18) for working the material plates (1). The supporting member (25, 26, 29) has paired supporting elements (25′, 25″, 26′, 26″, 29′, 29″) with supporting surfaces (27′, 27″, 30′, 30″) facing one another, between which the material plate (1) is held. There are openings (31) for liquid emerging under pressure in the supporting surfaces (27′, 27″, 30′, 30″). The material plate (1), especially the glass pane, is therefore not mechanically supported, as is conventional in the prior art, but uses a liquid film which is formed under pressure in the gap between the material plate (1) and the supporting surfaces (27′, 27″, 30′, 30″) of the supporting elements (25′, 25″, 26′, 26″, 29′, 29″).
REFERENCES:
patent: 4495023 (1985-01-01), Lisec
patent: 4716686 (1988-01-01), Lisec
patent: 5003729 (1991-04-01), Sherby
patent: 6220056 (2001-04-01), Ostendarp
patent: 6222155 (2001-04-01), Blackmon et al.
patent: 2001/0018313 (2001-08-01), Lisec
patent: 1186763 (1998-07-01), None
patent: 198 06 306 (1999-09-01), None
patent: 1449619 (2004-08-01), None
CN Office Action dated Apr. 18, 2008 from corresponding CN02820423.9.
Nguyen Dung Van
Young & Thompson
LandOfFree
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