US Patent No. 10,648,599

PIPE COUPLING HAVING DOUBLE-THREADED TIGHTENING FASTENER AND ASSOCIATED METHODS


Patent No. 10,648,599
Issue Date May 12, 2020
Title Pipe Coupling Having Double-threaded Tightening Fastener And Associated Methods
Inventorship Edwin A. Bird, Ashdown, AR (US)
Assignee Sensus Spectrum LLC, Raleigh, NC (US)

Claim of US Patent No. 10,648,599

1. A pipe coupling for coupling two pipe ends together, comprising:a sleeve having a generally cylindrical body portion with open opposing ends configured to receive the two pipe ends, the body portion extending along a longitudinal length;
at least one sealing gasket operatively coupled with the sleeve for engaging at least one of the two pipe ends; and
a clamping element operatively coupled with the sleeve for compressing the at least one sealing gasket into tightened engagement with at least one of the two pipe ends, the clamping element further including:
first and second clamp members operatively coupled with the open opposing ends of the sleeve and the at least one sealing gasket, the first and second clamp members including corresponding first and second bolt flanges nominally spaced from one another to define a gap therebetween,
a double threaded fastening bolt extending along the longitudinal length, generally parallel to the body portion of the sleeve and through the first and second bolt flanges of the first and second clamp members, the fastening bolt including first and second external threaded portions connected at a central bolt portion and respectively defining a right-hand thread and a left-hand thread, and
first and second fastening nuts in threaded engagement with the first and second external threaded portions of the fastening bolt and positioned to abut the respective first and second bolt flanges, the first fastening nut including a threaded bore with a right-hand thread and the second fastening nut including a threaded bore with a left-hand thread, wherein tightening the first and second fastening nuts on the fastening bolt draws the first and second bolt flanges towards one another to compress the gap therebetween and thereby cause compression of the at least one sealing gasket.