Patent application number | Description | Published |
20110210543 | Pipe Coupling Device - Disclosed is a device for coupling a male piping member to a female piping member including a compressible sealing gasket and a gripping ring surrounding the male piping member, the gripping ring including at least one gripping member and at least one overlapping surface; an intermediate ring surrounding the male piping member, the intermediate ring at least partially overlapping the overlapping surface of the gripping ring, the intermediate ring communicating with the compressible sealing gasket; and a locking ring surrounding the male piping member and communicating with the gripping ring, wherein through a tightening connection between the locking ring and the female piping member, the locking ring communicates with the gripping ring forcing the intermediate ring into the compressible sealing gasket to form a seal between the male piping member and the female piping member and subsequently to force the gripping ring to grip the male piping member. | 09-01-2011 |
20130036796 | ENCLOSURE FOR LEAK DETECTOR - A leak detection structure for attachment to a fire hydrant includes an enclosure, the enclosure defining a cavity internal to the enclosure and a leak detection subassembly located in the cavity, the leak detection subassembly including at least one leak detection sensor and at least one circuit. | 02-14-2013 |
20130049968 | FIRE HYDRANT LEAK DETECTOR - A leak detection system includes a housing for installation within a hydrant; at least one leak detection sensor within the housing; and a transmitter circuit in communication with the at least one leak detection sensor for communicating leak detection data. | 02-28-2013 |
20130199625 | FLUSHING HYDRANT - A device for flushing a hydrant includes a stem connected to a valve of the hydrant; and an actuation system including a biased translational system coupled to the stem. An actuation system for flushing a hydrant includes a fluid; a piston assembly movable by the fluid; and a biasing element at least indirectly biasing the piston assembly towards a stop position. A method of flushing a hydrant includes operating an actuation system coupled to the hydrant, the actuation system including a stored energy device, a piston assembly coupled to a stem of the hydrant; and a biasing element coupled to the stem, the stem connected to a valve of the hydrant; and opening the valve of the hydrant by releasing energy from the stored energy device against a piston plate of the piston assembly. | 08-08-2013 |
20130206241 | FLUSHING HYDRANT WITH FAIL-SAFE - A device for flushing a hydrant includes a stem connected to a fluid valve of the hydrant and an actuation system including a biased translational system coupled to the stem, a compressed gas, and a normally-open gas discharge valve. An actuation system for flushing a hydrant includes a fluid, a piston assembly movable by the fluid, a manual bleed valve in communication with the fluid, and a biasing element at least indirectly biasing the piston assembly towards a stop position. | 08-15-2013 |