Movable or removable closures – Threshold – With diverse seal
Patent
1994-06-06
1995-12-19
Kannan, Philip C.
Movable or removable closures
Threshold
With diverse seal
494961, E06B 170, E06B 7232
Patent
active
054759463
DESCRIPTION:
BRIEF SUMMARY
This invention relates to improvements in devices for restricting the passage of air and moisture through the gaps between doors and the floor and in particular for restricting the passage of air and moisture through the gap between the door and the floor at the bottom of doors along the full width of the door.
Existing methods of restricting draught and weather at the gap at the bottom of doors take several forms. One common method involves the manual placement of a device such as a soft flexible tubular container filled with sand, cloth or other filling so that the device may be manually pushed against the gap so that the device takes up the shape of the gap and restricts draught through the gap. Such devices are unsightly and cumbersome. Another common method is similar to the above method except that there is a mounting mechanism which must be screwed to the face of the door so that the tubular section moves with the door. Such devices are bulky, unsightly and can foul with the cavity in cavity sliding doors. Another common method involves the use of a mounting strip containing a brush type material. The mounting strip must be fixed to the face of the door. This method is unsightly and can damage the face of the door. Another common method is to provide a mounting strip which contains a hinging mechanism which houses a resilient gasket. The hinge mechanism strikes a biasing stop when the door is closed so that the gasket is forced toward the floor surface. This method is unsightly and limited to external hinged door use. Another common method is to provide a two part mechanism where one part is mounted to the underside of the door and the other part is mounted to the surface of the floor. This method is limited to external hinged doors and can make the door more difficult to operate.
The present invention provides a device for simply and effectively excluding draught and weather from penetrating the gap at the base of a door. This invention also provides a device which is concealed beneath the underside of the door. It also provides a device which does not require fixing to the door by the use of screws or nails. It also provides a device which can be simply and effectively fixed to the door without removing the door. It also provides a universal device for broad use. It also provides a device which does not require fixing to the face of the door. It also provides a single part device which seals a wide range of variation in a single gap. It also provides a device which does not reduce the ease with which a door can be opened or closed. It also provides a device which actively clamps down onto the floor surface without the need for complimentary devices such as biasing stops. It also provides a device which does not require adjustment when used to seal a gap whose sides are not parallel along its length. It also provides a device which in use does not mar soft floor coverings. It also provides a device which in use has no components which are subject to significant wear or deterioration. It also provides a device which is suited to sliding doors as well as hinged doors. It also provides a device which greatly reduces the operating forces on the fixing material when in use so that simple less strong fixing materials such as strips of bonding tape may be successfully used to fix the device directly to the underside of a door edge, without additional separate members such as a mounting cradle or modifications to the door edge such as grooving. It also provides a device which may seal the gap between the mounting web and the under side of a door edge by the use of bonding tape strips. It also provides a sealing device which is able to actively climb and pass over significant obstacles above the floor surface. It also provides a device which may provide a relatively tight seal or a relatively less tight seal in the same device. It also provides a device which does not require any complimentary devices to be fitted to the underside of a door and does not require any modification to the underside of a standar
REFERENCES:
patent: 2240181 (1941-04-01), Fairbank
patent: 2247435 (1941-07-01), Cerny
patent: 2293292 (1942-08-01), Goellner
patent: 3359688 (1967-12-01), Konolf
patent: 3535824 (1970-11-01), Kessler
patent: 3581884 (1971-06-01), Caldwell
patent: 4497137 (1985-02-01), Nelson
patent: 4509999 (1985-04-01), Sandor
patent: 4525953 (1985-07-01), Stutzman
patent: 5010691 (1991-04-01), Takahashi
patent: 5093968 (1992-03-01), Rojdev et al.
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