| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 285336000 | With cooperating opposed packing grooves | 11 |
| 20080277934 | Grooved Profile For a Hub Shaft Connection - A grooved profile for a form fitting hub-shaft connection in which a groove profile for a hub and a shaft include flanks which are structured and arranged as opposing flanks. The groove profile includes a groove profile height in at least one of the hub and the shaft, a wall thickness in at least one of the hub and the shaft smaller than the groove profile height, and at least one of the opposing flanks is one of curved and arc-shaped in cross section. | 11-13-2008 |
| 20090085350 | SEALED FLANGE JOINT FOR HIGH PRESSURE AND HIGH PURITY GAS CHANNELS - A sealed flange joint for high pressure and/or high purity fluid channels comprises includes a first flange with a first fluid channel and a cylindrical front cavity. The front cavity is axially delimited by a ground surface and radially by a peripheral surface. The first fluid channel passes axially through the first flange to open into the ground surface. A polymer seal ring has a radial outer surface and a radial inner surface, and is fitted into the cylindrical front cavity so that its radial outer surface engages the peripheral surface of the front cavity. A second flange is removably fixed onto the first flange, and has a second fluid channel in axial continuation of the first fluid channel. The second flange has an axially protruding cylindrical front nipple with a conical head, the second fluid channel axially opening into an end surface of the conical head. The conical head engages the radial inner surface of the seal ring to radially press the latter with its radial outer surface against the peripheral surface of the front cavity. | 04-02-2009 |
| 20090284008 | SEALING SYSTEM FOR EXHAUST-GAS LINES - A sealing system, in particular for sealing multiple-part exhaust-gas lines for an internal combustion engine, having at least a first ( | 11-19-2009 |
| 20100230960 | GENDERLESS FLANGE FOR HIGH VACUUM WAVEGUIDES - A system of genderless flanges suitable for high vacuum waveguides is provided, comprising a metallic gasket between a pair of identical flanges where the configuration of the gasket conforms to within 100 microns to the cross-section of the inner surface of the waveguides. The invention also provides a method for manufacturing a mechanical junction for identical electromagnetic radiation waveguides, the method comprising: supplying a pair of identical flanges, each of said flanges defining an axially extending an inwardly facing axial surface defining a first aperture opening adapted to receive a waveguide, each of the flanges having an outwardly facing axial surface defining a second aperture opening with a perimeter equal to within 100 microns to the inner perimeter of the waveguides; inserting a first end of a first wave guide into the first aperture opening of a first of said flanges and inserting a first end of a second wave guide into the first aperture opening of a second of said flanges and permanently bonding the wave guides to their respective flanges; positioning each of said flanges such that the outwardly facing axial surfaces of the flanges oppose each other; positioning a gasket between the opposing surfaces, wherein the inner perimeter of the gasket is within 100 microns of the inner perimeter of the wave guide; and applying axial pressure to the outwardly facing axial surfaces of the flanges to provide a hermetic seal between the flanges. | 09-16-2010 |
| 20110127769 | PIPE COUPLER - A pipe coupler for physically connecting and forming a pressurized seal between two sections of pipe. The pipe coupler comprises a body having a through hole, the through hole defining an inner surface of the body. Two contact seals are installed onto two sealing grooves, respectively, located around a circumference of the inner surface. Each of the two pipe sections are inserted into the through hole from opposing ends of the body and are secured to the pipe coupler using retaining fasteners through apertures located through the body. The contact seals form a pressurized seal between the outside surface of the pipes and the inner surface of the body, thereby creating a mechanical and pressurized coupling between the two pipes. | 06-02-2011 |
| 20110210545 | METAL SEAL FITTING CONSTRAINTS - An air conditioner system fitting is disclosed including a first seal portion comprising a metal material adapted to provide a primary seal, and a second seal portion attached to a free edge of said first seal portion and adapted to provide a secondary seal, wherein the fitting militates against leakage during operation of the air conditioning system. The fitting has certain design constraints that optimize the fitting for considerations such as manufacturing, assembly, sealing, and corrosion resistance. | 09-01-2011 |
| 20120074694 | SELF-ALIGNING SANITARY PIPE JOINTS AND RELATED SYSTEMS - Systems for joining pipes used in the food processing and pharmaceutical industries are disclosed. For example, connections of fluid handling pipes and improved flange-type joints are disclosed. Some disclosed joints comprise a pair of flanges each defining a circumferentially extending channel recessed from an end face A radially extending end wall is positioned radially outward of the end face. Said end faces are retained in axially opposed relationship to each other such that a circumferential groove configured to receive a gasket is defined when the joint is assembled. The groove has a first portion open to the flow passage and a second portion extending radially outward from the first portion. A polymeric gasket can comprise a generally toroidal member axially compressed in the first portion of the groove when the joint is assembled. The radial end walls radially compress the gasket, and the gasket can expand radially outward. | 03-29-2012 |
| 20120098257 | COMPOSITE DRILL PIPE AND METHOD FOR FORMING SAME - A lightweight and durable drill pipe string capable of short radius drilling formed using a composite pipe segment formed to include tapered wall thickness ends that are each defined by opposed frustoconical surfaces conformed for self-aligning receipt and intimate bonding contact within an annular space between corresponding surfaces of a coaxially nested set of metal end pieces and a set of nonconductive sleeves. The distal peripheries of the nested end pieces and sleeves are then welded to each other and the sandwiched and bonded portions are radially pinned. The composite segment may include imbedded conductive leads and the axial end portions of the end pieces are shaped to form a threaded joint with the next pipe assembly that includes contact rings in the opposed surfaces of the pipe joint for contact together. | 04-26-2012 |
| 20120292900 | SYSTEM, METHOD, AND APPARATUS FOR MULTIPLE APPLICATION FITTING - A removable and reusable multiple application fitting is disclosed that enables removal of the hose without significant damage to the hose. The removable and reusable multiple application fitting properly seals with hoses made of only one compound, such as rubber, as well as hoses of multiple compounds with or without linings, such as a rubber hose with a plastic lining. The multiple application fitting has a taper step and o-ring step to guide a hose over an installed o-ring to prevent the o-ring from being displaced during installation. The multiple application fitting is versatile and in some embodiments is used with hoses that require o-rings, and in other embodiments used with hoses that do not. | 11-22-2012 |
| 20140183861 | FLUSH JOINT PIPE - A pipe has a tubular body with a male end and a female end. The male end has an external surface with a first engagement groove. The female end has an internal surface with a second engagement groove, and an aperture extending from an outer surface of the tubular body to the second engagement groove. The female end receives the male end of another pipe such that the first engagement groove of the male end axially aligns with the second engagement groove of the female end to establish a spline engagement groove having a groove length, L | 07-03-2014 |
| 20140361535 | CONNECTION ASSEMBLY - A method of connecting a first fitting to a second fitting to provide a fluid coupling between the first fitting and the second fitting includes providing a first fitting having an exterior surface; providing a second fitting having an interior surface and an annular groove provided on the interior surface; positioning the first fitting at least partially within the second fitting; and deforming the first fitting in a generally annular direction to form an annular ridge extending at least partially into the annular groove to couple the first fitting to the second fitting. | 12-11-2014 |
