Movable or removable closures – Closure seal; e.g. – striker gasket or weatherstrip – Plural sealing contact points
Reexamination Certificate
1998-03-23
2002-05-07
Redman, Jerry (Department: 3634)
Movable or removable closures
Closure seal; e.g., striker gasket or weatherstrip
Plural sealing contact points
C049S475100
Reexamination Certificate
active
06381905
ABSTRACT:
This invention is related to a door sealing system. More particularly, this invention is related to a method and system for providing a multi-finger door frame seal and a door security seal to be disposed adjacent the bottom of a door.
BACKGROUND OF THE INVENTION
U.S. Pat. No. 4,742,646 to Kehrli discloses a multi-frame weather seal adapted to be affixed to a door frame surrounding a door. The frame seal of the '646 patent has its base affixed upon the rabbett on both sides of the door, namely, the hinge side and the lock side. This arrangement results in hinge bind problems which make it difficult to close a door adjacent which the Kehrli multi-finger seal is affixed. Accordingly, there exists a need in the art for an improvement which substantially eliminates the hinge bind problems associated with the Kehrli multi-finger seal.
A current problem in the marketplace exists in that hotel rooms, dormitories, and the like may be broken into by burglars accessing the door's locking mechanism by way of going “under the door”. Accordingly, there exists a need in the art for a security seal to be positioned underneath doors which would reduce the likelihood of burglars being able to break into these type rooms.
U.S. Pat. No. 4,528,775 discloses a seal affixed to the bottom or underside of a door for the purpose of shutting off draft, dampening noise, and sealing dust and the like. The door bottom seal of the '775 patent is not a security seal, as evident by its design which includes a resilient lath affixed directly to the bottom of the door, the lath being actuated, for example, by a leaf spring. At a certain position during closing of the door, an end of the leaf spring projecting laterally outward from the door toward the jamb is forced inward thereby causing the middle portion of the spring to flex downward. Downward flexing of the leaf spring forces the head of the lath toward the floor in certain areas.
In view of the above, it is apparent that there exists a need in the art for both an improved security seal for affixation at or below a door and an improved multi-finger door frame seal for affixation in a door frame surrounding the door, the overall door sealing system for improving performance with respect to fire codes, heating/ventilating codes, and industry self-policing codes (e.g. ASTM, NFPA, and/or ANSI codes). Also, such smoke seals should function to prevent fire-fueling oxygen from entering such rooms.
SUMMARY OF THE INVENTION
Generally speaking, this invention satisfies the above-described needs in the art by providing a security seal system for attachment adjacent a bottom of a door within a door frame over a floor, the door having exterior and interior sides, the security seal system comprising:
a door engaging member affixed to the door;
a security flap pivotally connected to the door engaging member by way of a hinge;
an actuator or cam affixed to one of the door frame and the floor; and
the security flap including an actuator or cam engaging surface for contacting the actuator or cam when the door is being closed thereby causing the security flap to move downward away from the bottom of the door so as to form a security seal under the door when the door is in a closed position.
Still further, this invention satisfies the above-described needs in the art by providing a multi-finger cushioning frame seal for affixation to a door frame surrounding a door, the multi-finger frame seal comprising:
a base member;
first and second flexible fingers extending from the base member; and
a flexible bridge spaced from the base and connected between the first and second fingers so as to define a space bounded by the fingers, the base, and the bridge.
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Redman Jerry
Rhoa Joseph A.
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