Device for branching-off a secondary piping having a certain diameter, from a main pipe having any diameter

Claim 1

A DEVICE FOR BRANCHING-OFF A SECONDARY CONDUIT FROM MAIN PIPE LINES OF DIFFERENT OUTER DIAMETERS COMPRISING, IN COMBINATION, AN ELONGATED MEMBER FORMED INTERMEDIATE THE ENDS THEREOF WITH A BORE ADAPTED TO BE SUBSTANTIALLY ALIGNED WITH AN OPENING THROUGH A WALL IN A RESPECTIVE MAIN PIPE LINE AND TO RECEIVE AN END PORTION OF SAID SECONDARY CONDUIT, SAID MEMBER HAVING AN END FACE FACING THE RESPECTIVE MAIN PIPE LINE SPACED THEREFROM AND EXTENDING TRANSVERSE TO SAID BORE; FIRST ENGAGING MEANS IN THE REGION OF SAID END FACE ABOUT SAID BORE; A SET OF BRIDGING MEANS RESPECTIVELY INSERTABLE BETWEEN SAID END FACE OF SAID ELONGATED MEMBER AND THE OUTER SURFACE OF THE RESPECTIVE MAIN PIPE LINE, EACH OF SAID BRIDGING MEANS BEING FORMED WITH A BORE THERETHROUGH ADAPTED TO BE ALIGNED, WHEN A RESPECTIVE ONE OF SAID BRIDGING MEANS IS INSERTED BETWEEN SAID END FACE OF SAID ELONGATED MEMBER AND THE OUTER SURFACE OF A MAIN PIPE LINE, WITH SAID BORE IN SAID MEMBER, ALL BRIDGING MEANS OF SAID SET OF BRIDGING MEANS BEING FORMED ON ONE SIDE THEREOF WITH INDENTICAL ENGAGING MEANS ADAPTED TO COOPERATE WITH SAID FIRST ENGAGING MEANS ON SAID ONE MEMBER FOR KEEPING SAID BORES ALIGNED ALONG A COMMON AXIS, AND EACH OF SAID BRIDGING MEANS OF SAID SET OF BRIDGING MEANS HAVING ON THE OPPOSITE SIDES THEREOF A CONCAVELY CURVED END FACE HAVING A RADIUS OF CURVATURE DIFFERING FROM THAT OF THE OTHER BRIDGING MEANS OF SAID SET AND RESPECTIVELY MATCHING THE OUTER SURFACE OF ONE OF SAID MAIN PIPE LINES OF DIFFERENT DIAMETERS; AND PRESSING MEANS CONNECTED TO SAID MEMBER AND ENGAGING THE MAIN PIPE LINE USED WHICH HAS AN OUTER RADIUS SUBSTANTIALLY EQUAL TO THE RADIUS OF CURVATURE OF THE INSERTED BRIDGING MEANS FOR PRESSING SAID MEMBER AGAINST THE BRIDGING MEANS INSERTED BETWEEN SAID MEMBER AND THE MAIN PIPE LINE AND THE RESPECTIVE BRIDGING MEANS AGAINST THE MAIN PIPE LINE.

Claim 2

A DEVICE FOR BRANCHING-OFF A SECONDARY CONDUIT FROM MAIN PIPE LINES OF DIFFERENT OUTER DIAMETERS COMPRISING, IN COMBINATION, AN ELONGATED MEMBER FORMED INTERMEDIATE THE ENDS THEREOF WITH A BORE ADAPTED TO BE SUBSTANTIALLY ALIGNED WITH AN OPENING THROUGH A WALL IN A RESPECTIVE MAIN PIPE LINE AND TO RECEIVE AN END PORTION OF SAID SECONDARY CONDUIT, SAID MEMBER HAVING AN END FACE FACING THE RESPECTIVE MAIN PIPE LINE SPACED THEREFROM AND EXTENDING TRANSVERSE TO SAID BORE; FIRST ENGAGING MEANS IN THE REGION OF SAID END FACE ABOUT SAID BORE; A SET OF BRIDGING MEANS RESPECTIVELY INSERTABLE BETWEEN SAID END FACE OF SAID ELONGATED MEMBER AND THE OUTER SURFACE OF THE RESPECTIVE MAIN PIPE LINE, EACH OF SAID BRIDGING MEANS BEING FORMED WITH A BORE THERETHROUGH ADAPTED TO BE ALIGNED, WHEN A RESPECTIVE ONE OF SAID BRIDGING MEANS IS INSERTED BETWEEN SAID END FACE OF SAID ELONGATED MEMBER AND THE OUTER SURFACE OF A MAIN PIPE LINE, WITH SAID BORE IN SAID MEMBER, ALL BRIDGING MEANS OF SAID SET OF BRIDGING MEANS BEING FORMED ON ONE SIDE THEREOF WITH INDENTICAL ENGAGING MEANS ADAPTED TO COOPERATE WITH SAID FIRST ENGAGING MEANS ON SAID ONE MEMBER FOR KEEPING SAID BORES ALIGNED ALONG A COMMON AXIS, AND EACH OF SAID BRIDGING MEANS OF SAID SET OF BRIDGING MEANS HAVING ON THE OPPOSITE SIDES THEREOF A CONCAVELY CURVED END FACE HAVING A RADIUS OF CURVATURE DIFFERING FROM THAT OF THE OTHER BRIDGING MEANS OF SAID SET AND RESPECTIVELY MATCHING THE OUTER SURFACE OF ONE OF SAID MAIN PIPE LINES OF DIFFERENT DIAMETERS; AND PRESSING MEANS CONNECTED TO SAID MEMBER AND ENGAGING THE MAIN PIPE LINE USED WHICH HAS AN OUTER RADIUS SUBSTANTIALLY EQUAL TO THE RADIUS OF CURVATURE OF THE INSERTED BRIDGING MEANS FOR PRESSING SAID MEMBER AGAINST THE BRIDGING MEANS INSERTED BETWEEN SAID MEMBER AND THE MAIN PIPE LINE AND THE RESPECTIVE BRIDGING MEANS AGAINST THE MAIN PIPE LINE.