Patent application number | Description | Published |
20100230615 | SECURITY DEVICE - A security device for authenticating bank notes, documents and other items, comprises a luminescent material for producing luminescent radiation of first and second wavelengths. The security device includes an optically variable structure for controlling emission of luminescent radiation of at least one of the first and second wavelengths from the security device, the security device being arranged to permit, from an area of the optically variable structure, emission of luminescence of the first and second wavelengths from the security device. The optically variable structure causes the relative emissivity of the security device for luminescent radiation of the first and second wavelengths to change with a change in emission angle, so that the security device produces an angle-dependent colour shift in the emitted luminescent radiation. The optically variable structure may comprise an optical interference stack that controls transmission of luminescent radiation therethrough in response to the wavelength of luminescent radiation. | 09-16-2010 |
20120068450 | SECURITY DEVICE - A security device for authenticating bank notes, documents and other items, comprises a luminescent material for producing luminescent radiation of first and second wavelengths. The security device includes an optically variable structure for controlling emission of luminescent radiation of at least one of the first and second wavelengths from the security device, the security device being arranged to permit, from an area of the optically variable structure, emission of luminescence of the first and second wavelengths from the security device. The optically variable structure causes the relative emissivity of the security device for luminescent radiation of the first and second wavelengths to change with a change m emission angle, so that the security device produces an angle-dependent colour shift m the emitted luminescent radiation. The optically variable structure may comprise an optical interference stack that controls transmission of luminescent radiation therethrough in response to the wavelength of luminescent radiation. | 03-22-2012 |
Patent application number | Description | Published |
20090000758 | Device for Casting - The present invention is a casting machine for casting parts in a mold out of a metal using a metal feed stock. The machine includes a processing cylinder formed in a thermally conductive block, said processing cylinder having a processing chamber and opposite first and second ends, the first end of the processing cylinder being configured to receive the metal feed stock. The machine further includes an injector cylinder formed in the thermally conductive block adjacent the processing cylinder, the injector cylinder having a shooting pot coupled to the second end of the processing cylinder by a passage configured to permit feed stock to pass from the processing cylinder into the shooting pot, a nozzle coupled to the injector cylinder configured to couple to the mold. The device includes a processing drive for driving the feed stock from the first end of the processing cylinder through the passage into the shooting pot and a heater thermally coupled to the processing cylinder. The heater and processing cylinder are configured to heat the feed stock such that the feed stock becomes progressively more liquid as it passes from the first to the second end of the processing cylinder. The machine further includes an injector plunger coupled to an injector actuator for driving the plunger sufficiently to force the metal from the shooting pot through the nozzle and into the mold. | 01-01-2009 |
20120043045 | Device for Casting - The present invention is a casting machine for casting parts in a mold out of a metal using a metal feed stock. The machine includes a processing cylinder formed in a thermally conductive block, said processing cylinder having a processing chamber and opposite first and second ends, the first end of the processing cylinder being configured to receive the metal feed stock. The machine further includes an injector cylinder formed in the thermally conductive block adjacent the processing cylinder, the injector cylinder having a shooting pot coupled to the second end of the processing cylinder by a passage configured to permit feed stock to pass from the processing cylinder into the shooting pot, a nozzle coupled to the injector cylinder configured to couple to the mold. The device includes a processing drive for driving the feed stock from the first end of the processing cylinder through the passage into the shooting pot and a heater thermally coupled to the processing cylinder. The heater and processing cylinder are configured to heat the feed stock such that the feed stock becomes progressively more liquid as it passes from the first to the second end of the processing cylinder. The machine further includes an injector plunger coupled to an injector actuator for driving the plunger sufficiently to force the metal from the shooting pot through the nozzle and into the mold. | 02-23-2012 |
20140014288 | DEVICE FOR CASTING - A casting machine includes a processing cylinder formed in a thermally conductive block. The cylinder has a processing chamber, a first end configured to receive the metal feed stock and a second end. An injector cylinder formed in the thermally conductive block has a shooting pot coupled to the second end of the processing cylinder by a passage configured to permit feed stock to pass from the processing cylinder into the shooting pot. A nozzle is coupled to the injector cylinder and to the mold. A processing drive drives the feed stock from the first end of the processing cylinder through the passage into the shooting pot. A heater is thermally coupled to the processing cylinder to heat the feed stock. An injector plunger coupled to an injector actuator for driving the plunger sufficiently to force the metal from the shooting pot through the nozzle and into the mold. | 01-16-2014 |
Patent application number | Description | Published |
20090162190 | Centrifugal Impeller With Internal Heating - An internal heating arrangement for a centrifugal impeller for a gas turbine engine is provided having at least one heating passage extending through into the rotor for directing air bled from the rotor exit along the backface and forwardly through the impeller. | 06-25-2009 |
20090246032 | METHOD OF MACHINING AIRFOIL ROOT FILLETS - An airfoil root fillet having a predetermined compound curve profile can be flank milled with a single flank milling cutter having a generally conical flank milling portion and a rounded tip portion defining a compound curve. | 10-01-2009 |
20100183444 | FAN BLADE PRELOADING ARRANGEMENT AND METHOD - The fan blade includes a blade root at one end thereof configured for sliding insertion into a substantially axially extending slot defined in a periphery of a fan rotor hub. The blade comprises a first passageway extending at least partially through the blade root, in a direction generally parallel to an axial direction of the slot. It also comprises a second passageway extending at least partially through the blade root to intersect with the first passageway. A first member is provided in the first passageway, the first member configured to be retained in the first passageway once inserted therein, and a second member is provided in the second passageway, the second member having one end in cooperating engagement with the end of the first member. The second member has a portion projecting out of the bottom face of the blade root a distance sufficient to contact an inner surface of the slot and thereby force the blade outwardly in the slot. | 07-22-2010 |
20100189564 | BLADE PRELOADING SYSTEM AND METHOD - A removable fan blade of a turbofan engine includes a blade root at one end thereof. A rotor disk has a retention slot having dimensions corresponding for receiving the root of the fan blade in the slot. An elongated resilient member extends within the retention slot in a lengthwise direction between the root of the fan blade and the bottom of the retention slot and an elongated member extends lengthwise between the root of the fan blade and the elastomeric member to compress the resilient member and provide a radial preload to the fan blade. | 07-29-2010 |
20120210579 | BLADE PRELOADING SYSTEM AND METHOD - A removable fan blade of a turbofan engine includes a blade root at one end thereof. A rotor disk has a retention slot having dimensions corresponding for receiving the root of the fan blade in the slot. An elongated resilient member extends within the retention slot in a lengthwise direction between the root of the fan blade and the bottom of the retention slot and an elongated member extends lengthwise between the root of the fan blade and the elastomeric member to compress the resilient member and provide a radial preload to the fan blade. | 08-23-2012 |
20130108456 | BLADE FOR A GAS TURBINE ENGINE | 05-02-2013 |
20130209260 | GAS TURBINE ENGINE ROTOR BALANCING - A method of balancing a gas turbine engine rotor comprises the step of obtaining a rotor disc with a circumferential array of balance tabs projecting from a peripheral rim of the disc. Stress shielding scallops are defined in the rotor disc between the tabs. The balancing is achieved by removing material from at least one of the tabs. | 08-15-2013 |
Patent application number | Description | Published |
20110114278 | HIGH FIBER SUPPORT INTRINSIC WARP-TIED COMPOSITE FORMING FABRIC - A woven filtration fabric for cellulosic sheet formation. The warp yarns comprise intrinsic binder yarn pairs, and a set of dedicated machine side layer warp yarns. The members of each intrinsic binder yarn pair alternate with each other to define a single combined path in each layer. Whenever a member interweaves with a machine side layer weft yarn, at least one machine side layer warp yarn interweaves with the same weft yarn in the same knuckle. In some embodiments, the members form double knuckles in the machine side layer, firstly together with a first machine side layer warp yarn and then together with a second machine side layer warp yarn. The warp yarn path ratio of machine side layer warp yarns to single combined paths of the intrinsic binder yarn pairs is at least 1.5:1. The fabrics provide increased center plane resistance, resulting in improved drainage and sheet uniformity. | 05-19-2011 |
20120178330 | PAPERMAKERS' FORMING FABRIC INCLUDING PAIRS OF MACHINE SIDE COMPLEMENTARY YARNS - A multilayer woven industrial fabric comprises at least two layers of weft yarns interwoven with at least one system of warp yarns. At least some of the machine side (MS) weft yarns are arranged as complementary pairs, such that for each pair, the members follow mutually complementary paths, and exchange positions with each other so that, in the MS surface, the path of a pair of weft yarns appears to be that of a single yarn. The complementary weft yarns interweave only with the MS warp yarns and do not appear in the paper side. The unique MS weft yarn arrangement allows for the use of smaller yarns, while increasing fabric stiffness and dimensional stability, and is applicable to any multi-layer fabric design which includes at least two layers of weft yarns and one system of warp yarns. | 07-12-2012 |
20120244313 | HINGE TYPE SEAMING ELEMENT FOR JOINING ENDS OF AN INDUSTRIAL TEXTILE - A seaming element and a method of seaming an industrial textile. The seaming element comprises first and second components, each constructed of a substantially planar polymeric film, comprising a textile body contacting portion and a free edge, and at least one row of pairs of substantially parallel slits spaced across the component, the slits having first ends substantially equidistant from the free edge of the component, and the pairs of slits defining strips which are deformable out of a plane of the film. When the two components are attached respectively to textile edges to be seamed, and the components are brought together, deformed strips of the first component are alignable with deformed strips of the second component to interengage the two components and to define a channel for a seam securing means, thus providing a simple and secure seam which is compatible with the properties of the textile body. | 09-27-2012 |