Door closer hold-open apparatus

Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Checks and closers – Pneumatic

Reexamination Certificate

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Details

C016S082000, C016S072000, C016S374000, C292S275000

Reexamination Certificate

active

06981295

ABSTRACT:
The present invention relates to a hold-open apparatus for controlling the position of a door, preferably a screen door or storm door. The apparatus is used in conjunction with a piston assembly and can maintain a door in a predetermined open position, such as about 45° to about 100° in relation to a closed position. In a preferred embodiment, the apparatus can automatically lock and/or unlock when the door reaches predetermined positions. The apparatus advantageously can be retrofitted to existing door assemblies.

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patent: WO 9612077 (1996-04-01), None

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