LU87098A1 - T-CONNECTOR FOR PIPING - Google Patents

Description

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'B ^ Ο 9 ^ GRANL-D'.VHE DE Lf. EMBOURG

p'l · ·. · ;. Mr. k Minister on December 31, 1987 of! Έ * .ηο: η * and of Gasse * Movenne "

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Patent Application I. Application

Sansson S.A., 9 Bvd. Roosevelt, Luxembourg, represented by

Mr. Jean Waxweiler, 55rue des Bruyères, Howald, acting as a depositary representative! nti this thirty-one offsets one thousand nine hundred and eighty-seven. .4 at 11.00 a.m., at the Ministry of the Economy and the Middle Classes, in Luxembourg: 1. this request for obtaining a patent for an invention concerning:

T-fitting for piping 2. the description in French of the invention in three copies: 3. 3 drawing boards, in three copies: 4. the receipt of the taxes paid to the Registration Office in Luxembourg, on 31.12. 1987 5. the delegation of power, dated ..the 6. the successor document (authorization); declares! nt) assuming responsibility for this declaration, that the inventor (s) is (are i:. t

George Smith., ....... Flager Inn, Paradise ...... Island, .. Nassau, Bahamas claims priority for one or more of the above patent applications! s) from / ................ filed in (8) ........ / on (9) ...... / under N ° (101 / ......

in the name of (11) / ...................... .....

elect (elect) domicile for him / her and, if designated, for his / her representative, in Luxembourg 55 rue des Bruyères, Howald (12d seeks! nt) the grant of a patent for invention for the object described and represented in the above-mentioned annexes.

with postponement of this issue to .... / d D Λ ....... month, ii.-i

The d ^ yssiOütmandataire: ...... S. ; 14 Π. Deposit Minutes

The aforementioned patent application has been filed with the Ministry of the Economy and the Middle Classes. Intellectual Property Service in Luxembourg, dated 31.12.19 8 7 ^ K * · c‘- * / '“\ \ Pr. The Minister of the Economy and the Middle Classes.

'- at 11.00 o'clock? c / 7 p. d.

\ 1 \ J The head of the honeycombing department.

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A hW * · * · * / i EXPLANATIONS RELATIVE TO FOR-MI LAIKK DEP07 l IOL— î '· "Pemandt ûi c ^ nmcatc aaoiütinaubreveiprinaphi. Abocmande ds hrc \ £ -pnr, vjpJ N. ... du“ - jnv -r; dot: ·. · “· 1> L- 3208! i

DESCRIPTIVE MEMORY FILED IN SUPPORT OF A PATENT INVENTION APPLICATION IN THE GRAND DUCHY OF LUXEMBOURG

Sansson S.A.

9, Bvd. Roosevelt Luxembourg

T-fitting for piping

T-fitting for piping

The present invention relates to a T-connector for piping composed of two parts intended to surround a first pipe, one of the parts being provided with a threaded bore 5 for the connection of a second pipe.

A known T-connector comprises a cylindrical hollow body with a diameter slightly greater than the outside diameter of the pipe to which it is desired to make a connection. The connector is provided with a threaded bore intended to receive a pipe to be connected. The hollow cylindrical body is slid over the pipe and put in place with its threaded bore opposite a hole previously arranged in the pipe at the location where a connection must be made.

The hole has a diameter slightly smaller than that of the bore of the T-fitting. A threaded fitting on the outside and inside is then screwed into the bore until its front end touches the pipe. The fitting is fixed to the pipe by tightening the threaded fitting, the front end of which then forms a tight seal between the pipe and the T-fitting at the intended location. A pipe can then be screwed into the threaded connection.

There are other two-piece T-fittings each forming a half-clamp, one of which has a threaded bore for connecting a pipe. During mounting, the two half-collars are placed around the pipe, interposing an elastic sheet-shaped seal on the side of the bore between the pipe and the half-collar. The two half-collars are joined by means of bolts and a hole is drilled in the pipe from the bore. Then a pipe of suitable diameter can be screwed into the bore.

The Second T-fitting described only lends itself to small diameters, the first cannot be mounted on existing piping without partial disassembly of the latter. The object of the present invention is to provide a T-connection allowing a T-connection to be made on a pipe of an existing pipe without dismantling it, while being suitable for pipes of large diameter.

40 This object is achieved according to the invention by a T-fitting 2 consisting of two parts in which the part provided with the threaded bore has the shape of a half-clamping collar having an interior surface adapted to the surface. outside of the first pipe, the second piece has the shape of a bent rod provided with a screw thread at each of its ends which are intended to be received each in a respective hole provided on the half-clamping collar and to be retained there by means of a nut screwed on the thread of 10 screws, the interior end of the bore is extended beyond the interior surface of the half-collar in the form of a projection, a groove is provided in the inner surface of the half-collar around said projection and an elastic annular seal is placed in said groove, the thickness of the seal towards the depth of said groove being greater than the depth thereof.

Advantageous embodiments are described in the subclaims.

The T-connector according to the invention allows easy mounting in an existing pipe with large diameter pipes.

The invention will now be described by way of non-limiting example with reference to the accompanying drawings in which:

Figure 1 is a front view, partially in section, showing all the elements of the connector according to the invention; Figure 2 is a horizontal projection of part 30 with bore of the connector of Figure 1; Figure 3 is a side view, partially in section, of the part with the bore of the connector of Figure 1; Figure 4 is another side view of the part with the bore of the connector of Figure 1; and FIG. 5 shows the elastic joint of the rac cord in horizontal projection, seen from the side and in section.

In Figure 1 the connector 10 according to the invention comprises a first part 12 in the form of a half-clamping collar provided with a bore 14 provided with a thread 16 des-40 tiné to receive the pipe to be connected. The bore 14 has at its lower end a portion 18 of reduced diameter without threading.

The inner surface 20 of the connector 10 is designed to adapt to the outer surface of the pipe (not shown) on which the connector is to be mounted. A groove 22 is arranged in the interior surface 20 of the fitting 10 around the lower part 18 of reduced diameter of the bore 14. The groove 22 serves to receive a resilient circular seal 10 of corresponding shape shown in FIG. 5 in projection horizontal and lateral and in section. The height of the seal 24 is slightly greater than the depth of the groove 22 so that the seal mounted in the groove emerges from the surface 15 of the connector 10.

The second part 26 of the connector 10 is a bent rod provided at each of its ends 28.30 with a screw thread intended to receive a corresponding nut 32.

The first part 12 of the connector 10 comprises two ears 34, 36 located on either side of the bore 14 and each provided with a corresponding hole 38.40, the hole 40 in the ear 36 being open on a side. The holes 38 and 40 serve to receive the ends 30 and 28, respectively of the bent rod 26 when the connector 10 is mounted on a pipe.

The lower end 18 of reduced diameter 1 bore 14 exceeds the surface 22 and can enter the hole (not shown) in the wall of the pipe on which the connector is to be mounted. The height of this projection 30 from the lower end 18 of the bore 14 can be equal to the thickness of the wall.

! Opposite recesses 42 may be provided on a side wall of the groove 22. They are intended to receive corresponding projections 44 of the circular seal 24. The recesses 42 and the projections 44 make it easier to place the seal 24 correctly. in groove 22.

When a connection is to be made to a pipe of an existing pipe, a hole is first drilled at the desired location. The diameter of the hole is at least equal to or slightly larger than the outside diameter of the projection of the lower part 18 of the bore 14 of the appropriate fitting 10. The seal 24 is placed in the groove 22 of the connector 10 and the connector 10 is placed on the pipe (not shown) so that the projection of the lower part 18 enters the hole drilled in the pipe. The bent piece 26 is placed against the pipe so that a respective end 28.30 enters the respective associated hole 36.38. A nut 32 is screwed onto each end 28,30 of the bent rod 26 and tightened so that the connector is fixed to the pipe. The seal 24 is compressed and forms a tight seal between the pipe (not shown) and the T-connector 1.0. A pipe of suitable diameter 15 can then be screwed into the thread 16 of the bore 14 of the connector 10 and a tight and secure connection is made.

Claims (5)

1. T-fitting composed of two parts (/12.26) intended to surround a first pipe, one (a2.) Of parts 5 being provided with a threaded bore (* if) for the connection of a second pipe, characterized in that the part (42.) provided with the threaded bore (a *) has the shape of a half-clamping collar having an interior surface (2¾) adapted to the exterior surface of the first pipe, that the deu-10 xième piece (2.6) has the shape of a bent rod provided with a thread of screw (2i, 2> o) at each of its ends which are intended to be received each in a hole (-36 , ¾ ^) respectively provided on the half-clamp and to be retained there by means of a nut (32,32) screwed on the thread of 15 screws, as the inner end of the bore (/ ΐφ) is extended beyond the inner surface (22) of the half-collar in the form of a projection, that a groove (22.) is provided in the internal surface (2o) of the half-collar around said projection (/ S ) and that an elastic annular seal (pi) 20 is placed in said groove (22), the thickness of the joint towards the depth of said groove being greater than the depth of the latter. 2. Connection according to claim 1, characterized by diametrically opposite recesses in a side wall of said groove and corresponding protrusions on said joint. 3. A connector according to claim 1 or 2, characterized in that the inner end of the bore has a reduced diameter of the order of magnitude of the inner diameter of the second pipe and is not provided with a thread. 4. Connection according to any one of claims 1 to 3, characterized in that said projection has a uniform height relative to the inner surface of the half-collar. 5. Fitting according to claim 4, characterized in that said height is equal to the thickness of the first :. pipe.