Movable or removable closures – Closure seal; e.g. – striker gasket or weatherstrip – Having complementary engaging portions on closure or closure...
Patent
1992-02-11
1993-06-08
Kannan, Philip C.
Movable or removable closures
Closure seal; e.g., striker gasket or weatherstrip
Having complementary engaging portions on closure or closure...
49368, 49395, 114117, E06B 716
Patent
active
052168409
ABSTRACT:
An apparatus for sealing a movable closure member about an access aperture located within a rigid structure. The movable closure member is sized to cover the access aperture and to provide access through the access aperture when open. A resilient elastomeric gasket is secured to one of the rigid structure or the movable structure to suit design and manufacturing preference. The resilient elastomeric gasket has a hollow cavity disposed within the elastomeric gasket, and the hollow cavity is sealed at each end to form a pressure-equalizing chamber therein. A convex protrusion is positioned on the elastomeric gasket to confront a flat stop positioned upon the other of the rigid structure or the movable structure when the movable structure is closed. A closure means is provided to bias the convex protrusion against the flat stop face with sufficient pressure to partially deform the resilient, elastomeric gasket. The elastomeric gasket and the flat stop may be retrofited onto existing water tight doors by securing the flat stop onto the knife edge; and by replacing the existing seal with the elastomeric gasket of the present invention. This invention is adapted for use on bulkhead type fluid tight doors, and upon fluid tight double opening doors, and hatch covers.
REFERENCES:
patent: 2610079 (1952-09-01), Lambert
patent: 2778072 (1957-01-01), Palisca
patent: 2844118 (1958-07-01), Kummerman
patent: 3095619 (1963-07-01), Peterson
patent: 3126591 (1964-03-01), Hamilton
Flagg Rodger H.
Kannan Philip C.
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