Supports – Pipe or cable – Extending through plate
Patent
1997-04-07
1999-08-17
Ramirez, Ramon O.
Supports
Pipe or cable
Extending through plate
248 681, 174 65R, 277630, F16L 500
Patent
active
059381523
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a cable transit which includes an outer frame, at least one module-based cable seal, and a final sealing means which fills-out the frame together with the cable seal. The final sealing means includes two compressible wedges which can be moved towards and away from each other by means of screw means, and two further compressible wedges which can also be moved towards and away from one another and which coact with the two first-mentioned wedges.
DESCRIPTION OF THE BACKGROUND ART
Sealing systems which seal and protect cable and pipe transits against fire, smoke, gas, water, etc., are known to the art; see for instance Swedish Patent Specification 217276. This publication illustrates and describes a cable transit in which several separate cables are sealingly fitted and which comprises a rigid frame which includes resilient packing pieces which function to firmly clamp the cables, and a combination of wedges which when pushed together exert pressure on the packing pieces, and a tensioning device which functions to lock the wedge combination. These and other present-day sealing systems comprise several different loose components and several working steps are required to assembly, fit and dismantle such systems, which, when taken together, make the work more complicated and lower the speed at which the work can be carried out.
The object of the present invention is to eliminate these drawbacks.
SUMMARY OF THE INVENTION
The present invention provides a cable transit of the aforedescribed kind in which the four wedges are held together by a flexible strap which is adapted to hold the movable wedges firmly in relation to one another, so that the wedges and the screw means will form together a contained component which can be easily fitted in the frame.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will now be described in more detail with reference to the accompanying schematic drawings, in which
FIG. 1 illustrates a component prior to fitting the component in the frame (not compressed);
FIG. 2 shows the component compressed;
FIG. 3 shows the component in FIG. 1 from the rear;
FIG. 4 shows the component inserted in a frame; and
FIG. 5 shows the strap and wedges included in the component molded in one piece.
BEST MODES OF CARRYING OUT THE INVENTION
The component shown in FIG. 1 includes two compressible wedges 11, 12, e.g. rubber wedges, which can be moved towards and away from each other by means of screw means 17, and two further compressible wedges 15, 16 which can also be moved towards and away from each other and which coact with the two first-mentioned wedges 11, 12.
The screw means 17 comprises two threaded sleeves 111 and 121 which are molded in the wedges 11 and 12 respectively. The wedges are drawn together by means of a long screw 173 having a right-hand and a left-hand thread 171 and 172 respectively.
The four wedges 11, 12, 15, 16 and the screw means 17 are held together by a flexible strap 19 to form an easily handled pack with the wedges together forming a contained component which can be easily fitted into a frame.
FIG. 2 shows the component shown in FIG. 1 after having been inserted into a frame, with all wedges being compressed as a result of tightening the screw means 17, whereby the wedge 15 presses against the frame (upwardly directed arrow) and the wedge 16 presses against an underlying cable seal (downwardly directed arrow) such as to obtain an effective seal. The frame and cable seals are shown in FIG. 4.
In a further development of the invention, the component includes two pairs of juxtaposed wedges which can be moved with the aid of a respective screw means 17 and 18 for each wedge pair 11, 12 and 13, 14 respectively. In FIG. 1, the wedge 13 can be considered to lie behind the wedge 11 and the wedge 14 to lie behind the wedge 12. The further wedges 15, 16 are then extended (at right angles to the plane of the drawing) to enable coaction with the two wedge pairs 11, 12 and 13, 14 respectively. The strap 19 will now have twice th
REFERENCES:
patent: 2674772 (1954-04-01), Jacobs
patent: 2732226 (1956-01-01), Brattberg
patent: 3282544 (1966-11-01), Brattberg
patent: 4733016 (1988-03-01), Twist et al.
patent: 4767086 (1988-08-01), Blomqvist
patent: 5416271 (1995-05-01), Birmingham et al.
patent: 5675128 (1997-10-01), Simon
Baxter Gwendolyn
Ramirez Ramon O.
Roxtec AB
LandOfFree
Cable transit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cable transit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cable transit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-306983