Switch ladder sensor for roll-up door
AssigneeRytec Corporation
InventorsCURTIS EGGERT, Andrew Schumacher
Life of this patent
Estimating the term…
Abstract
A system and method for detecting damage to a door system by detecting the presence or absence of a magnetic source attached to the door system for stopping motion or reversing motion of the door to prevent any further damage to the door system. For example, a roll-up type door may be damaged by a vehicle and pulled from its vertical support guides; detecting this event causes stopping of any motion of the door, such as opening or closing the door.
Claims23
A detection system for detecting a status of a door, comprising:
- at least one support column to maintain a flexible door in place;
- and
- a detection mechanism configured along the at least one support column to detect the presence or absence of the flexible door in relation to the at least one support column.
A detection system for detecting a status of a door, comprising:
- a plurality of support columns to maintain a flexible door in place therebetween;
- and
- a detection mechanism configured along at least one of the support columns to detect the presence or absence of the flexible door in relation to the at least one support column,
- wherein the detection mechanism is configured to signal to stop or reverse motion of the flexible door if absence is detected.
A method for detecting a status of a door, comprising the steps of:
- detecting presence or absence of a break-away tab that is connected to a flexible door and slideably coupled to a support column;
- and
- stopping motion of the roll-up door if absence of the break-away tab is detected at the support column for preventing damage to the flexible door or the flexible doors' surroundings.
Dependencies are inferred from the claim text.