"automatic door bottom drop-down seal"
AssigneeRbp Associates Limited
InventorReginald Brian Parker
Life of this patent
Estimating the term…
Abstract
An automatic door bottom drop down seal having an actuator responsive to closing of the door for moving a sealing member vertically downwards into a sealing position relative to the door threshold when the door is closed. The actuator includes a arm connected to a block slidable within a channel of the seal housing. The arm is pivotally connected to the slide block so to pivot downwardly to impart downward pressure on the sealing member.
Claims20
A drop-down seal for a hinged door which is pivotable over a door threshold when closed, the door having a door bottom and the drop-down seal comprising:
- a sealing member having a length corresponding to the width of the door bottom;
- an actuator responsive to closing of the door and configured to move said sealing member vertically downwardly into a sealing position relative to the door threshold when the door is closed;
- the actuator comprising a plurality of elements located within a channel positionable adjacent the bottom of the door, the elements comprising at least one slide block slidable along the channel and having a pivotible arm, one end of which is connected to the underside of the block and the other end of which is connected to the sealing member, the arm being pivotable as the block slides along the channel to a position whereby the arm extends downwardly between the block and the sealing member thereby to impart and maintain downward pressure on the sealing member during use.
A drop-down seal for a hinged door which is pivotable over a door threshold when closed, the door having a door bottom and the drop-down seal comprising:
- a sealing member having a length corresponding to the width of the door bottom;
- an actuator responsive to closing of the door and configured to move said sealing member vertically downwardly into a sealing position relative to the door threshold when the door is closed;
- the actuator comprising at least one arm member having first and second sections divided by a flexible joint and being slidable within the channel, the first section of the arm being secured at one end to the sealing member, whereby said first section of the arm flexes downwardly when the arm slides along the channel to impart downward pressure on the sealing member.
(canceled)
Dependencies are inferred from the claim text.