Class / Patent application number | Description | Number of patent applications / Date published |
285344000 | "Rolled-in" gasket | 8 |
20090026762 | Assembly of male and female members - The diameter of a front end opening section ( | 01-29-2009 |
20100019491 | DISPENSING HEAD FOR AIR PUMP - A dispensing head for an air pump includes a sleeve connected to the air pump and a chamber is defined in an end of the sleeve. The end having the chamber of the sleeve is received in a housing and a mount piece is securely received in the housing. A first seal ring is mounted to the mount piece and in contact with an inner periphery of the chamber. The mount piece includes a plurality of inner threads defined axially in a central passage in the mount piece, so that the threaded section of a French valve is threadedly connected to the inner threads. A second groove is defined in the mount piece and a second seal ring is engaged with the second groove. The second seal ring is mounted to a neck of the French valve. | 01-28-2010 |
20100244441 | Method and apparatus for preventing overinsertion in plastic pipe systems - A method for joining and sealing a female plastic pipe end having a belled end opening to a mating male plastic pipe end having an interior surface and an exterior surface. A sealing element is installed within a groove formed in the belled end of the female pipe section. The male pipe end is then inserted into the end opening of the female pipe end so that the elastomeric sealing gasket makes sealing contact with the exterior surface of the male pipe. A control mechanism controls the distance the male pipe travels longitudinally within the end opening of the female plastic pipe to prevent overinsertion of the male pipe within the female pipe opening. | 09-30-2010 |
20110316273 | DUAL SEAL TUBE FITTING - A dual seal tube fitting is provided for quick and easy, substantially leak-free coupling with plastic tubing or the like in a water supply application, such as in a drinking fountain or the like. A reinforcing metal sleeve is slidably received into the end of a length of tubing which is then slidably received into a central bore of a fitting body having a resilient seal ring seated therein for sealingly engaging an outer diameter surface of the tubing. A compression ring is slidably received onto the tubing in a position over a portion of the internal sleeve therein, and is compressibly retained between the tubing and a fitting body seal face by a compression nut threaded onto the fitting body. The resilient seal ring thus provides a primary seal preventing leakage between the tubing and fitting body, whereas the compression ring provides a secondary seal. | 12-29-2011 |
20120306200 | Fitting Assembly For Conveying Fluids Under High Pressure - A fitting assembly for conveying a fluid under high pressure includes a first conduit including an outer diameter of the first conduit, a second conduit of circular cross-section defining an inside diameter to receive the first conduit. The fitting assembly further includes a circumferential sealing mechanism for coupling the second conduit to the first conduit after the first conduit is inserted into the smooth circular end of the second conduit. Particularly, the sealing mechanism is located within the second conduit before the female threads therein. | 12-06-2012 |
20130082463 | PIPE COUPLING - The invention provides a pipe coupling configured for coupling pipes over a range of diameters including a gripping and sealing assembly comprising a ring of circumferentially linked carrier members ( | 04-04-2013 |
20140097614 | JOINT FASTENING STRUCTURE - A joint fastening structure includes a first tube, a second tube, and at least one insert member. The first tube is provided at one end with a coupling section, on which at least one sealing portion and at least one locating portion are formed, and the sealing portion is configured for a sealing ring to fit therein. The second tube has a passageway for the coupling section to insert thereinto, and is formed on one side with at least one insertion portion. The insert member is inserted in the insertion portion to partially extend into the passageway in the second tube and engage with one side of the locating portion. With the above arrangements, the first and second tubes can be more conveniently coupled to each other with improved sealing effect between them, while the first tube is turnable relative to the second tube. | 04-10-2014 |
20140203551 | HYBRID REDUNDANT SEAL FOR REFRIGERANT SYSTEMS - A connection system for carrying a refrigerant may provide a hybrid redundancy in sealing a refrigerant flow from the surround system environment. The connection system may include a first sealing ring of a first type and a second sealing ring of a second type positioned downstream from the first sealing ring. In some embodiments, the first sealing ring may be in a groove positioned around the outside diameter of a male fitting. The second sealing ring may be positioned at an interface between the male fitting and a female fitting. In some embodiments, flanges of each fitting define the interface so that the second sealing ring may be positioned between the flanges of each fitting. The second sealing ring may be selected from a material that has a wider range of operating temperature than the first sealing ring so that in the event of failure in the first sealing ring, the second sealing ring may prevent leakage. | 07-24-2014 |