Door sealing system

Details Door sealing system Door sealing system

2006-04-28

2010-06-29

Chilcot, Jr., Richard E (Department: 3635)

Static structures (e.g., buildings)

Shaped or strengthened by fluid pressure

C052S001000, C049S319000

Reexamination Certificate

active

07743560

ABSTRACT:
A door sealing system includes a frame and a pneumatic liner positioned along an inner perimeter of the frame. The liner includes a hollow interior for adjusting it between extended and retracted configurations. A pump is included for selectively inflating the liner and a valve which can be deactivated to deflate the liner. When inflated, the liner fills the gap between the door and the frame and when deflated, allows the door to be opened easily. A sensor is positioned with a cavity in the frame for detecting placement of a latch indicative of the door being opened or closed. A processor then appropriately actuates the pump or deactivates the valve. Accordingly, the seal is inflated when the door is closed and is deflated when the door is being opened.

REFERENCES:
patent: 2530160 (1950-11-01), Finley
patent: 3074520 (1963-01-01), Grubelich
patent: 3224150 (1965-12-01), Burtoft et al.
patent: 4006392 (1977-02-01), Catlett et al.
patent: 4676025 (1987-06-01), Mattscheck et al.
patent: D293935 (1988-01-01), Allen, Jr.
patent: 4773183 (1988-09-01), Okushima et al.
patent: 5150543 (1992-09-01), Wessiepe et al.
patent: 5172094 (1992-12-01), Stadler
patent: 5220696 (1993-06-01), Dannenberg et al.
patent: 5351345 (1994-10-01), Sills et al.
patent: 5771635 (1998-06-01), Skinner
patent: 5851248 (1998-12-01), Wilson et al.
patent: 5979828 (1999-11-01), Gruensfelder et al.
patent: 6125591 (2000-10-01), Schmidhuber et al.
patent: 6152208 (2000-11-01), Kalempa et al.
patent: 6192633 (2001-02-01), Hilbert
patent: 6195941 (2001-03-01), Burow et al.
patent: 6259352 (2001-07-01), Yulkowski et al.
patent: 6485029 (2002-11-01), Moody et al.
patent: 6591662 (2003-07-01), Grimard et al.
patent: 6922945 (2005-08-01), Dron
patent: 7118472 (2006-10-01), Kennedy et al.
patent: 7152375 (2006-12-01), Mastro et al.
patent: 7178810 (2007-02-01), Kuhary
patent: 7357710 (2008-04-01), Dube
patent: 7469942 (2008-12-01), Whitaker et al.
patent: 7487616 (2009-02-01), Deaver
patent: 2005/0044908 (2005-03-01), Min
patent: 2007/0251147 (2007-11-01), Box

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