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Class Information
Number: 16/316
Name: Miscellaneous hardware > Hinge > Gravitating hinge having vertical axis > Including cam surface and follower > On axially twisted or helically fluted element
Description: Hinge wherein the vertically sloped or curved surface is formed on an elongated element oriented along the hinge axis*, and having helical convolutions about its longitudinal axis.

Patents under this class:

Patent Number Title Of Patent Date Issued
8082628 Hinge Dec. 27, 2011
8079115 Automatically opening hinge assembly for portable electronic devices Dec. 20, 2011
8065780 Collapsible device Nov. 29, 2011
7913356 Hinge assembly for foldable electronic devices Mar. 29, 2011
7895710 Hinge device Mar. 1, 2011
7516519 Door or gate closing hinge Apr. 14, 2009
7155779 Automatic lift and turn hinge and gate Jan. 2, 2007
7124993 Rotating sign mount with automatic return Oct. 24, 2006
7000289 Gravity hinge Feb. 21, 2006
6990772 Automatic door closure for double-acting doors Jan. 31, 2006
4991259 Butt mounted riser hinge Feb. 12, 1991
4391020 Gravity return hinge having an axle rod in an axle sleeve Jul. 5, 1983

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