Notes

The present invention relates to a device for insertion and sealing of narrow-pitched annular fastener parts such as ring seals for sealing relatively narrow width joints such as sleeves or the like.
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The following discussion of related art is provided to assist the reader in understanding the advantages of the invention, and is not to be construed as an admission that this related art is prior art to this invention.
Such narrow-pitched fastener parts are generally inserted into a sealing element with some force. In general, such fastener parts have a diameter which is several times smaller than the diameter of the sealing element.
The annular fastener parts are, in general, inserted into the sealing element, via their edge or a side face, in such a manner that they are arranged or located between two sealing elements. The annular fastener parts are thus protected against open-air exposure.
For sealing, the narrow-pitched fastener parts are pressed together. In general, this requires placing the fastener parts axially against each other, the fastener parts then being moved toward each other, and finally the sealing element being pressed therebetween. An axial force is thus exerted upon the sealing element, and this can result in an undesirable stress.
The circumferential pressure can also be increased when the sealing element is widened with the fastener parts inserted therethrough, after the annular fastener parts have been inserted in the sealing element.
In the case of sleeve seals and the like, this generally results in a reduction in the seal surface area, because such sleeves are typically sealed by a spring member which surrounds them axially.
Thus, there is a need to provide a device which is suitable for the insertion and sealing of such narrow-pitched fastener parts.
The present invention relates to a device for insertion and sealing of narrow-pitched annular fastener parts such as ring seals for sealing relatively narrow width joints such as sleeves or the like.
The device according to the invention has a first part which is adapted to receive the annular fastener part. Furthermore, the first part has a slit opening through which a tip of the annular fastener part can be guided. The slit opening extends in the direction of the axis, preferably circumferentially.
The second part has a sealing element which is adapted to surround the narrow-pitched fastener part. Furthermore, the second part has two sealing lips with which the seal faces of the fastener part are to be pressed together.
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