Seal

Details Seal Seal

2000-03-08

2001-11-13

Redman, Jerry (Department: 3634)

Movable or removable closures

Closure seal; e.g., striker gasket or weatherstrip

Spaced or superposed flange cantilevered from edge of base...

C049S475100, C049S495100, C049S303000

Reexamination Certificate

active

06314683

ABSTRACT:

FIELD OF THE INVENTION
The invention relates to a seal intended for a base station of a radio system in particular for sealing a seam between a frame and a door or the like, the seal being at least partly made of elastic material and comprising a fastening portion by which the seal is arranged to be fastened to the frame.
BACKGROUND OF THE INVENTION
It is important to protect the radio system base station against environmental effects. As it is impossible to make a totally protective cover, for example, due to service and various connections, the electronic equipment are placed inside the protective construction comprising a door or a hatch. Such doors, covers or hatches that can be opened or closed need some kind of a seal to protect the electronic equipment against such environmental effects as dust, rain or splash water. Lip seals and hollow seals made of elastic material are typical prior art seal solutions used to tightly close the seam between the door and the frame. The function of these seals is generally based on the fact that they are compressed between the door and the frame when the door is closed. However, such a use of the seal does not provide adequate tightness for base station use in particular, since the compressive force, for example, is often insignificant. The decrease in base station size also leads to a low compression of the seal due to limited space.
BRIEF DESCRIPTION OF THE INVENTION
An object of the invention is to provide a seal so as to solve the above problems, the seal thus tightening the seam between the frame and the door using insignificant compression and low compressive force. This is achieved with the type of seal described in the preamble, characterized by comprising a first sealing portion structurally fastened to a fastening portion and arranged to turn towards the seam, when closing the door, in such a manner that as the seal fills the seam between the door and the frame at least a part of the first sealing portion is arranged to extend also over an edge of the door onto an outer surface, whereby the seal provides a continuous seal structure from the outer surface of the door to the fastening portion.
Several advantages are achieved with the seal of the invention. The seal, in which the sealing portion turns towards the seam and covers the area between the seal and the door so that the seal extends slightly over the door, offers more efficient protection against dust and water than prior art solutions.


REFERENCES:
patent: 1779215 (1930-10-01), Larson
patent: 3263366 (1966-08-01), Woloohojian et al.
patent: 3739527 (1973-06-01), Schubach
patent: 2421010 (1975-11-01), None
patent: 2421010 A1 (1975-11-01), None
patent: 3225030 A1 (1984-01-01), None
patent: 3225030 (1984-05-01), None
patent: 3919773 (1990-12-01), None
patent: 3919773 A1 (1990-12-01), None
patent: 0157418 A2 (1985-10-01), None
patent: 0881350 A1 (1998-12-01), None
patent: 2170850 A (1996-08-01), None

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