Non-metallic elbow conduit transition fitting
First Claim
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1. A fitting for interconnecting electrical conduit sections, comprising:
- a base defining a substantially flat bottom face;
a first end extending upwardly from said base, said first end being generally circular in cross-section and defining a first central spacial axis perpendicular to said bottom face;
a curved tubular center section having a bottom portion extending from said first end and terminating in an upper portion;
a second end extending from said upper portion, said second end being generally circular in cross-section and defining a second central spacial axis, said second central spacial axis being at a right angle to said first central spacial axis;
said second spacial axis being separated by a dimension H from said bottom face;
said base bottom face further defining a width that is greater than said first end and a dimension L that is greater than said dimension H; and
a web interconnecting said base and said curved tubular center section.
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Abstract
A Non-metallic Elbow Conduit Transition Fitting is disclosed. The fitting is specifically suited to interconnect vertical electrical conduit runs and horizontal electrical conduit runs in commercial construction environments. The fitting is suitable for immersion within poured concrete floors used in commercial building construction. The fitting is designed to threadedly engage a vertical run of EMT (metallic) conduit with a horizontal run of nonmetallic (e.g. PVC) conduit. A final aspect of the fitting is that it must have a short sweep angle bend so that it is adequately buried within a concrete floor made from 6 inches of concrete.
35 Citations
17 Claims
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1. A fitting for interconnecting electrical conduit sections, comprising:
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a base defining a substantially flat bottom face; a first end extending upwardly from said base, said first end being generally circular in cross-section and defining a first central spacial axis perpendicular to said bottom face; a curved tubular center section having a bottom portion extending from said first end and terminating in an upper portion; a second end extending from said upper portion, said second end being generally circular in cross-section and defining a second central spacial axis, said second central spacial axis being at a right angle to said first central spacial axis; said second spacial axis being separated by a dimension H from said bottom face; said base bottom face further defining a width that is greater than said first end and a dimension L that is greater than said dimension H; and a web interconnecting said base and said curved tubular center section. - View Dependent Claims (2, 3, 4, 5)
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6. A conduit fitting, comprising:
a one-piece, non-metallic body defining a tubular elbow having a first end defining a base having a substantially flat bottom face defining a length 1 and a width w, and a first cylindrical collar formed therein, and a second end defining a second cylindrical collar, said first cylindrical collar having a threaded bore formed therein, said second cylindrical collar having a smooth-walled bore formed therein, said collars each defining a central axis, said axes at relative right angles with said flat bottom face in spaced relation to said second cylindrical collar central axis by a dimension that is less than said length 1. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A conduit elbow, comprising:
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a first elbow end defined by a base having a substantially flat bottom face, said base further having a first cylindrical collar formed therein and at least one fastener aperture formed through said base adjacent to said first cylindrical collar, said first cylindrical collar further having an outer surface and defining a threaded inner bore penetrating said bottom face; a non-threaded curved tubular center section defining a generally smooth-walled curved inner bore in fluid communication with said threaded inner bore; and a second elbow end at a ninety degree angle to said first elbow end, said second elbow end defined by a second cylindrical collar having an outer surface and defining a generally smooth-walled inner bore in fluid communication with said curved inner bore and said threaded inner bore. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification