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| Number | Title | Issue Date |
| 8177263 | Pipe coupling having movable gripping bodies A coupling for securing pipe elements together in end-to-end relation has segments joined end-to-end by adjustable connection members. The segments surround a central space which receives the pipe elements. One or more gripping bodies are captured between the segmen... | 05/15/2012 |
| 8141798 | High velocity low pressure emitter with deflector having closed end cavity An emitter for atomizing and discharging a liquid entrained in a gas stream is disclosed. The emitter has a nozzle with an outlet facing a deflector surface having a closed end cavity. The nozzle discharges a gas jet against the deflector surface. The emitter has a ... | 03/27/2012 |
| 8136847 | Coupling having angularly oriented shoulder surfaces A mechanical pipe coupling is formed of segments attached end to end to surround a central space. Each segment has a circumferentially extending cavity facing the central space flanked by arcuate keys which project toward the central space. Two arcuate shoulder surf... | 03/20/2012 |
| D656225 | Tee fitting | 03/20/2012 |
| 8132629 | Method and apparatus for drying sprinkler piping networks A sprinkler system and a method for mitigating scaling, microbiological influenced corrosion and oxidative corrosion are disclosed. The system includes a piping network in fluid communication with a source of pressurized water and an air pump. The network is vented ... | 03/13/2012 |
| D651290 | Pipe coupling segment | 12/27/2011 |
| 8079129 | Installation-ready pipe coupling method of manufacture A method of manufacturing an installation-ready pipe coupling is disclosed. The method includes providing pipe coupling segments each having an initial radius of curvature and an initial subtended angle. The segments are each deformed so as to take a permanent set a... | 12/20/2011 |
| 8069547 | Installation-ready pipe coupling method of manufacture A method of manufacturing an installation-ready pipe coupling is disclosed. The method includes providing pipe coupling segments each having an initial radius of curvature and an initial subtended angle. The segments are each deformed so as to take a permanent set a... | 12/06/2011 |
| 8051915 | Field convertible valve and sprinkler system A fire suppression sprinkler system convertible between a wet and a dry mode of operation is disclosed. The system features a field convertible valve having a bypass loop with a bypass valve for selectively configuring the valve for wet or dry mode operation. For dr... | 11/08/2011 |
| D648427 | Ring gasket | 11/08/2011 |
| 8038176 | Seal with rigid stop ring A seal for pipe couplings and a method of connecting pipe elements. The seal has an elastic ring surrounding a rigid ring. The elastic ring has side portions connected by a recessed center portion. The recessed center portion has a diameter no greater than the final... | 10/18/2011 |
| D643912 | Ring gasket | 08/23/2011 |
| 7996981 | Method of joining pipes in end to end relation A method for connecting pipe elements together end to end. The method includes providing a coupling having a plurality of segments with at least one camming surface, the segments being joined end to end by a plurality of adjustably tightenable fasteners, positioning... | 08/16/2011 |
| 7988207 | Couplings having stiffening ribs and keys with oppositely disposed camming surfaces Mechanical pipe couplings for joining pipe elements in end to end relation have arcuate keys which engage circumferential grooves in the pipe elements and radially projecting stiffening ribs aligned with the keys. At the end of the keys on opposite sides are camming... | 08/02/2011 |
| 7950701 | Pipe coupling having movable gripping bodies A coupling for securing pipe elements together in end-to-end relation has segments joined end-to-end by adjustable connection members. The segments surround a central space which receives the pipe elements. One or more gripping bodies are captured between the segmen... | 05/31/2011 |
| D636854 | Pipe coupling segment | 04/26/2011 |
| D636471 | Pipe coupling segment | 04/19/2011 |
| D636470 | Pipe coupling segment | 04/19/2011 |
| D636469 | Pipe coupling segment | 04/19/2011 |
| 7921927 | Gaseous and liquid agent fire suppression system using emitters with closed end cavity deflector A fire suppression system includes a gaseous extinguishing agent and a liquid extinguishing agent. At least one emitter is in fluid communication with the liquid and gas. The emitter is used to establish a gas stream, atomize and entrain the liquid into the gas stre... | 04/12/2011 |
| 7921577 | Method and apparatus for drying sprinkler piping networks A sprinkler system and a method for mitigating scaling, microbiological influenced corrosion and oxidative corrosion are disclosed. The system includes a piping network in fluid communication with a source of pressurized water and an air pump. The network is vented ... | 04/12/2011 |
| 7921536 | Method of pre-assembling pipe couplings and joining pipe elements A method for assembling a pipe coupling and a method of joining pipe elements in end to end relation using the pre-assembled pipe coupling. The pipe coupling is formed of segments joined end to end by fasteners. Retention elements positioned on the fasteners hold th... | 04/12/2011 |
| D634817 | Pipe coupling segment | 03/22/2011 |
| D633600 | Gusset pipe coupling segment | 03/01/2011 |
| D628680 | Pipe coupling | 12/07/2010 |
| D629497 | Pipe coupling segment | 12/21/2010 |
| D629496 | Pipe coupling | 12/21/2010 |
| D629084 | Pipe coupling segment | 12/14/2010 |
| D629083 | Pipe coupling segment | 12/14/2010 |
| D629082 | Pipe coupling | 12/14/2010 |
| D629081 | Pipe coupling segment | 12/14/2010 |
| D629080 | Pipe coupling | 12/14/2010 |
| D629079 | Pipe coupling segment | 12/14/2010 |
| D629078 | Pipe coupling | 12/14/2010 |
| D629077 | Pipe coupling segment | 12/14/2010 |
| D629076 | Pipe coupling | 12/14/2010 |
| D629075 | Gusset pipe coupling segment | 12/14/2010 |
| D629074 | Pipe coupling | 12/14/2010 |
| D629073 | Pipe coupling segment | 12/14/2010 |
| D629072 | Pipe coupling | 12/14/2010 |
