US 4,899,420 AGranted

Hinge system

AssigneesLaurie Stanley Hardie, Leonard John Coleman

InventorsDuane Bye, Robert Haugen

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Abstract

A hinge system for a large or heavy cover member hinged to a container member. A container hinge plate is secured to a side wall of the container member and a cover hinge plate is secured to the side wall of the cover member and rotatably connected to the first hinge means at a hinge pivot means. A gas strut unitary with and pivotably mounted to the container and cover hinge plates raises and lowers the cover member to open and closed positions relative to the container member. The gas strut is pivotably attached to the container and cover hinge plates. A quick connect-disconnect plate removably connected to the cover hinge plate and rotatably connected to the hinge pivot is used to connect or disconnect the container hinge plate from the cover hinge plate and thus to connect or disconnect the cover member to or from the container member and thus connect or disconnect the container member to or from the cover member. The hinge system including the quick connect-disconnect plate can be mounted to a heavy door.

Claims20

Dependent claims

In combination, a hinge system hinging a container member to a cover member, comprising:

First, hinge means secured to said container member, and second hinge means secured to said cover member and rotatably connected to said first hinge means about hinge pivot means;
opening and closing means pivotably mounted to said first and second hinge means for extending said cover member to an open position relative to said container member and for drawing said cover member to a closed position relative to said container member;
said container member having at least one first side wall and first linear edge generally perpendicular to said at least one first side wall, and said cover member having a second side wall generally parallel to said at least one first side wall and a second linear edge aligned with a said first linear edge, said first hinge means including at least one first hinge plate connected to said first side wall and said second hinge means includes at least one second hinge plate connected to said second side wall, said cover member being rotatable relative to the container member about said hinge pivot means along said first linear edge, said container member defining an opening, and said cover member being rotatable between said open and closed positions, wherein in said closed position said cover member closes said opening and in said open position said cover member is rotatably spaced from said opening.

Dependencies are inferred from the claim text.