Rite-hite Holding Corporation

Steve Lester

Perry W Knutson

Tom Jansen

Bill Horner

Ronald P Snyder

Donald P Grant

Bill Hoerner

A guiding mechanism for use in combination with an industrial door that includes an extension member extending across a doorway when the door is in a doorway blocking position is provided. The guiding mechanism includes a guard bracket extending along the doorway and having a mounting segment and a guard segment, and a track extending along the doorway and including a guideway for receiving a roller of the extension member and for guiding the roller as the door moves between blocking and unblocking positions. The track is affixedly mounted to the mounting segment such that the guard segment protects the track from an obstacle during a track impact condition.

Release mechanism for industrial doors

A release mechanism for use in combination with an industrial door, which includes an extension member extending across the doorway opening when the door is in its doorway-blocking positions, the releasing mechanism including a roller mounted for movement with the extension member, and a track including a guideway for receiving the roller and guiding it during normal door operation, the roller and track being movable relative to each other upon application of a breakaway force to the extension member, thereby allowing the roller to escape from the track when a breakaway force is applied to the extension member, the breakaway force being defined as a force that has a component perpendicular to the plane of the door above a certain magnitude.

An improved release mechanism for use in combination with an industrial door, which includes an extension member extending across the doorway opening when the door is in its doorway-blocking positions, the releasing mechanism including a roller mounted for movement with the extension member, and a track including a guideway for receiving the roller and guiding it during normal door operation, the roller and track being movable relative to each other upon application of a breakaway force to the extension member, thereby allowing the roller to escape from the track when a breakaway force is applied to the extension member, the breakaway force being defined as a force that has a component perpendicular to the plane of the door above a certain magnitude.

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Dubuque, IA, United States of America

Steve Lester