Patent application number | Description | Published |
20090272625 | BELT SCRAPER ASSEMBLY AND SCRAPER BLADE THEREOF - A belt scraper assembly having a blade holder and a scraper blade disposed therein, wherein a stiffener extending in a longitudinal direction with respect to the belt is provided in the blade body to resist bending of the blade. A scraper blade having a body with a rigid plate member connected thereto and a stiffener disposed in the body of resilient material above a base portion and below a tip portion of the plate member and extending generally transversely with respect to the length of the scraper body. A scraping assembly for a conveyor belt including a non-linearly contoured blade holder and a scraper blade with a stiffener disposed on the plate members between base and tip portions extending generally transversely with respect to the length of the plate including a force-transmitting interface between the stiffener and an inner surface of the rear wall of the blade holder such that the inner surface of the wall offers support to the stiffener to oppose bending of the scraper blade caused by scraping the belt. | 11-05-2009 |
20090294257 | Impact Bed Assembly for Conveyor Belts - Impact bed assemblies are provided, both static and dynamic, for absorbing impact forces taken by conveyor belts. The static and dynamic bed assemblies generally are constructed to optimize their impact absorption capacities while minimizing their space requirements under the belt. | 12-03-2009 |
20100116621 | Conveyor Belt Cleaning Apparatus and Method - Spring tensioner devices are provided for biasing scraper blades toward a conveyor belt. The spring tensioner devices generally are constructed to be easily reconfigurable between a push-up and pull-up configuration while minimizing their space requirements. | 05-13-2010 |
20110203904 | REMOVABLE CARTRIDGE CLEANER - A removable cartridge cleaner assembly is provided that has an insertion device for ease in installing an elongate cartridge assembly carrying belt cleaner assemblies onto an elongate support extending across a conveyor belt in an operative position thereon. In one form, an elongate lever handle pivotally connected to the elongate cartridge assembly can be used to generate a leveraged insertion force, preferably by an operator that does not need to reach into the operating envelope of the conveyor system, e.g, beyond tensioning mechanisms or under the belt. The handle and the cartridge assembly can have an over center locking mechanism therebetween for providing the operator tactile feedback as to when pivoting of the lever handle has caused the cartridge assembly to be shifted to its operative position on the support. | 08-25-2011 |
20110209969 | Compact Spring Tensioner for Belt Cleaners - Compact spring tensioner devices are provided for biasing scraper blades toward a conveyor belt. The spring tensioner devices generally are constructed to have a reduced operational envelope and be reconfigurable for providing a selected one of opposite rotary bias forces. | 09-01-2011 |
20110247915 | REMOVABLE CARTRIDGE CLEANER - A removable cartridge cleaner assembly is provided that allows for faster and easier removal of the belt cleaner blades out from under a conveyor belt. In one aspect the assembly includes a biasing surface of one of an elongate support assembly and a channel member configured to be engaged by a securing member and urge distal ends of legs of the channel member into tight engagement with the elongate support assembly and minimize debris accumulation therebetween. In another aspect, the elongate base member and rail member each include lateral portions configured to slidably engage corresponding wedge portions to urge the rail member toward the base member. A method of installing a belt cleaner assembly is also provided which includes camming a rail member downwardly toward the support member upper surface. | 10-13-2011 |
20110272250 | Method And Apparatus For Tracking Conveyor Belts - A conveyor belt tracking apparatus is provided for correcting the travel path of a laterally mistracking conveyor belt. In one form, an elongate tracking roller is rotatably mounted at end portions thereof to a pivotal support frame and extends across and below the belt. The pivotal support frame is mounted to a downstream pivot member so that belt mistracking toward one end portion of the tracking roller causes the one end portion to shift downstream and laterally outwardly to urge the belt toward the correct travel path. In one approach a downstream pivot connection between the pivot member and pivotal support frame is inclined upstream so that the end portion also shifts upwardly as it shifts downstream to urge the mistracking belt edge toward the correct travel path. | 11-10-2011 |
20130075228 | REMOVABLE CARTRIDGE CLEANER - A removable cartridge cleaner assembly is provided that allows for faster and easier removal of the belt cleaner blades out from under a conveyor belt. In one aspect the assembly includes a biasing surface of one of an elongate support assembly and a channel member configured to be engaged by a securing member and urge distal ends of legs of the channel member into tight engagement with the elongate support assembly and minimize debris accumulation therebetween. In another aspect, the elongate base member and rail member each include lateral portions configured to slidably engage corresponding wedge portions to urge the rail member toward the base member. A method of installing a belt cleaner assembly is also provided which includes camming a rail member downwardly toward the support member upper surface. | 03-28-2013 |
20130284565 | APPARATUS AND METHOD FOR TRACKING CONVEYOR BELTS - A tracking apparatus and method for urging a mistracking conveyor belt back towards a correct travel path are provided. The apparatus and method both utilize downstream shifting of an end portion of an idler roller due to mistracking of the conveyor belt for directing or steering the belt back toward its correct travel path and a reaction force from the belt due to the steering thereof for energizing a tilting action of the idler roller to raise the downstream end portion thereof. In this manner, the tilting of the idler roller is not mechanically coupled to the downstream shifting of the roller end portion allowing the belt tracking apparatus herein to be bi-directional for use with conveyor belts that may be run in opposite travel directions. | 10-31-2013 |
20140131171 | REMOVABLE CARTRIDGE CLEANER - A removable cartridge cleaner assembly is provided that allows for faster and easier removal of the belt cleaner blades out from under a conveyor belt. In one aspect the assembly includes a biasing surface of one of an elongate support assembly and a channel member configured to be engaged by a securing member and urge distal ends of legs of the channel member into tight engagement with the elongate support assembly and minimize debris accumulation therebetween. In another aspect, the elongate base member and rail member each include lateral portions configured to slidably engage corresponding wedge portions to urge the rail member toward the base member. A method of installing a belt cleaner assembly is also provided which includes camming a rail member downwardly toward the support member upper surface. | 05-15-2014 |
20140283358 | REMOVABLE CARTRIDGE CLEANER - A removable cartridge cleaner assembly is provided that has an insertion device for ease in installing an elongate cartridge assembly carrying belt cleaner assemblies onto an elongate support extending across a conveyor belt in an operative position thereon. In one form, an elongate lever handle pivotally connected to the elongate cartridge assembly can be used to generate a leveraged insertion force, preferably by an operator that does not need to reach into the operating envelope of the conveyor system, e.g. beyond tensioning mechanisms or under the belt. The handle and the cartridge assembly can have an over-center locking mechanism therebetween for providing the operator tactile feedback as to when pivoting of the lever handle has caused the cartridge assembly to be shifted to its operative position on the support. | 09-25-2014 |
20150274434 | SCRAPER BLADE FOR CONVEYOR BELTS - In one aspect, a scraper blade for a conveyor belt is disclosed that provides improved strength and durability of a connection between a resilient blade body and an insert molded in situ with the blade body. The blade body has an upper portion with a scraping tip and a lower portion with a pair of laterally spaced depending leg portions. The insert has a pair of laterally spaced side wall portions with variable wall thicknesses and laterally outwardly facing sides that extend along laterally inwardly facing sides of the blade body leg portions. Each insert side wall portion and the blade body lower portion include a plurality of recesses having an undercut configuration and a plurality of projections extending laterally and filling the corresponding recesses in which the projections are received to keep the blade body and the insert connected together under loading during conveyor belt operations. | 10-01-2015 |
20150360880 | CONVEYOR BELT CLEANER WITH REMOVABLE CLEANER ASSEMBLY - A conveyor belt cleaner is provided having a removable cleaner assembly that may be easily connected and disconnected from an elongate support member. The cleaner assembly includes one or more scraper blades mounted to an angle bar, an interface between the blades and the angle bar, and an interface between the blades and the support member. The blades have bodies that cover or surround the interfaces and reduce the likelihood of debris entering the interfaces and binding the blades to the angle bar and/or the support member. The cleaner further includes a securing mechanism with a pair of clamps for clamping the angle bar against seats of the elongate support. The clamps cause the angle bar to hold a base portion of the blades against the support member which permits the blade base portions to transmit loading from the conveyor belt directly to the support member. | 12-17-2015 |
20160001982 | Conveyor Belt Cleaner - In accordance with one aspect, a cleaner for a conveyor belt is provided having a scraper blade for engaging a conveyor belt traveling in a downstream direction and a rigid fulcrum member extending laterally transverse to the downstream direction. The cleaner includes a blade mount member having an upper arm portion connected to the scraper blade, an intermediate portion spaced upstream from the rigid fulcrum member, and a lower arm portion extending from the intermediate portion, under the rigid fulcrum member, and downstream beyond the fulcrum member. The cleaner has a resilient support for the blade mount member configured to allow the blade mount member to resiliently rock about the rigid fulcrum member as the scraper blade is impacted during conveyor belt operations. | 01-07-2016 |
Patent application number | Description | Published |
20090007890 | Multi-Path Evaporative Purge System for Fuel Combusting Engine - As one embodiment, a method of operating the evaporative purge system for an engine of a vehicle propulsion system is provided. The method comprises during a first condition, loading at least a first fuel vapor storage canister with fuel vapors; during a second condition, purging fuel vapors stored by at least the first canister to the engine; during a third condition, loading a second fuel vapor storage canister with fuel vapors without loading the first canister with fuel vapors; and during a fourth condition, purging fuel vapors stored by the second canister to the engine without purging fuel vapors from the first canister. Evaporative purge systems are also provided that enable this method. | 01-08-2009 |
20090114188 | Ignition Energy Control for Mixed Fuel Engine - As one example, an engine system for a vehicle is provided, including an internal combustion engine having at least one cylinder; a fuel system configured to provide a fuel to the cylinder; an ignition system including at least a spark plug; a control system configured to vary a level of ignition energy provided to the cylinder via the spark plug in response to a composition of the fuel provided to the cylinder by the fuel system. A method of operating the engine system by varying a level of ignition energy provided to the engine after a start-up is also provided. | 05-07-2009 |
20090288645 | Evaporative Emission Management For Vehicles - Evaporative emissions management for a vehicle having a fuel tank and a low-vacuum internal combustion engine, including hybrid electric vehicles, include first and second canisters with the second canister disposed between the first canister and atmosphere. A refueling valve routes fuel vapors from the fuel storage tank through the first canister, and to the second canister when the first canister becomes saturated, during refueling. Other than during refueling, the refueling valve is closed to route fuel vapors around the first canister and directly into the second canister. First and second purge valves are controlled during canister regeneration or purging so air from atmosphere is routed primarily through the second canister to the engine to purge the second canister before the purge valves are operated to route air from atmosphere through both the second and first canisters to purge the first canister. | 11-26-2009 |
20110100340 | METHOD FOR CONTROLLING ENGINE TEMPERATURE OF AN ENGINE - A method for controlling engine temperature of an engine with a wide dynamic range is disclosed. In one example, the derivative of an engine temperature is assessed by a controller. The controller may adjust engine actuators to limit engine temperature in response to the derivative. | 05-05-2011 |
20130006487 | METHOD FOR CONTROLLING ENGINE TEMPERATURE OF AN ENGINE - A method for controlling engine temperature of an engine with a wide dynamic range is disclosed. In one example, the derivative of an engine temperature is assessed by a controller. The controller may adjust engine actuators to limit engine temperature in response to the derivative. | 01-03-2013 |
20130098032 | METHOD AND SYSTEM FOR REDUCING TURBOCHARGER NOISE DURING COLD START - An approach for controlling a turbocharger bypass valve is disclosed. In one example, the turbocharger bypass valve is opened during engine cold start conditions to reduce turbocharger speed. The approach may reduce noise produced by the turbocharger during engine start and warm-up. | 04-25-2013 |
20140047833 | METHOD FOR CONTROLLING A VARIABLE CHARGE AIR COOLER - Embodiments for a charge air cooler are provided. In one example, an engine method comprises during a first mode, decreasing a volume of a charge air cooler in response to a compressor operation upstream of the charge air cooler. In this way, compressor surge may be prevented. | 02-20-2014 |
20140163846 | IGNITION ENERGY CONTROL FOR MIXED FUEL ENGINE - A method of operating an engine including varying a level of ignition energy provided to the engine during an engine start is provided. For example, the ignition energy level may be varied responsive to the amount of alcohol in fuel delivered to the engine in order to improve cold engine starting with higher alcohol fuels. | 06-12-2014 |
20140325979 | COMPRESSOR RECIRCULATION VALVE CONTROL TO REDUCE CHARGE AIR COOLER CONDENSATE - Methods and systems are provided for adjusting a compressor recirculation valve in response to condensate forming conditions in a charge air cooler (CAC). In one example, a compressor recirculation valve may be opened in response to an induction pressure greater than a threshold pressure when the induction pressure is greater than required to produce a manifold pressure required for a torque demand. Further, a wastegate may be opened to further reduce the induction pressure during certain driving conditions. | 11-06-2014 |