Abstract: A durable transfer roll core may comprise an elongate body comprising a groove, the elongate body having a longitudinal axis. The groove may comprise a Groove Angle from about 0 to about 90 degrees (relative to the longitudinal axis) and the groove may comprise a Groove Depth greater than about 0.003 inches.

Abstract: A method for removing dust-carrying air from a moving paper web is disclosed. The method includes the steps of: providing a moving web, the web having a first side and a second side, the web moving at a sufficient rate to produce a boundary layer of adjacent dust-carrying air; providing a NACA duct, the NACA duct having an intake opening and walls that diverge in increasing cross-sectional area to an exhaust opening having greater cross sectional area than the intake opening; and submerging the intake opening into the boundary layer to scavenge dust-carrying air from the boundary layer.

Abstract: A housing for an engine is provided. The housing includes an intake manifold configured to supply air to at least one chamber defined within the housing, a fuel port configured to supply fuel to the at least one chamber, and a compression control port configured to control at least one of a pressure and a volume of a fuel-air mixture in the at least one chamber during a compression cycle of the engine. The compression control port includes a passage defined through the housing, and at least one valve disposed in the passage and configured to control a flow through the passage.

Abstract: An apparatus for removing particulate-carrying air from a moving web. The moving web has a first side and a second side. The apparatus includes a NACA duct positioned in a non-contacting relationship on a first side of the moving web, and at least partially submerged in a particulate-carrying boundary layer of the moving web. The NACA duct can have an intake opening and an exhaust opening such that when the intake opening is submerged in the boundary layer at least a portion of the particulate-carrying air from the boundary layer enters the intake opening and exits the exhaust opening, thereby scavenging particulate-carrying air from said boundary layer.

Abstract: An apparatus for removing particulate-carrying air from a moving web. The moving web has a first side and a second side. The apparatus includes a NACA duct positioned in a non-contacting relationship on a first side of the moving web, and at least partially submerged in a particulate-carrying boundary layer of the moving web. The NACA duct can have an intake opening and an exhaust opening such that when the intake opening is submerged in the boundary layer at least a portion of the particulate-carrying air from the boundary layer enters the intake opening and exits the exhaust opening, thereby scavenging particulate-carrying air from said boundary layer.

Abstract: A rotary engine has a rotor that has rockers pivoting in chambers. As each rocker pivots, it rotates an outer crankshaft. Each outer crankshaft has a spur gear that engages a stationary ring gear. Spur gear rotation causes the gears and the outer crankshafts to revolve around the ring gear. This cause the rotor to rotate. As the rotor rotates, successive chambers are positioned at the intake, compression, ignition, and exhaust positions. Igniting the fuel in the ignition position pushes the rocker inward to rotate the outer crankshaft associated with that rocker to cause the rotor to rotate.

Abstract: A method for removing dust-carrying air from a moving paper web is disclosed. The method includes the steps of: providing a moving web, the web having a first side and a second side, the web moving at a sufficient rate to produce a boundary layer of adjacent dust-carrying air; providing a NACA duct, the NACA duct having an intake opening and walls that diverge in increasing cross-sectional area to an exhaust opening having greater cross sectional area than the intake opening; and submerging the intake opening into the boundary layer to scavenge dust-carrying air from the boundary layer.

Abstract: An apparatus for removing particulate-carrying air from a moving web. The moving web has a first side and a second side. The apparatus includes a NACA duct positioned in a non-contacting relationship on a first side of the moving web, and at least partially submerged in a particulate-carrying boundary layer of the moving web. The NACA duct can have an intake opening and an exhaust opening such that when the intake opening is submerged in the boundary layer at least a portion of the particulate-carrying air from the boundary layer enters the intake opening and exits the exhaust opening, thereby scavenging particulate-carrying air from said boundary layer.

Abstract: A closure for sealing a container, in particular a container that, prior to first use by a consumer, includes an opening or aperture covered by a seal, wherein the closure is equipped with a perforating member adapted to open or break the seal, thereby enabling the consumer to access the contents of the container.

Abstract: A part hanger is provided that engages a part being treated in a manner that orients the part so that treatment liquid tends to drain from the part. To this end, a part hanger is provided that is configured to suspend a part for treatment with a liquid. The part hanger includes one or more elongate members formed into a substantially U-shape having first and second side legs connected by a bottom leg. The first leg is configured to support a portion of the part from below at a first leg distal end. A hanger extension is connected at one end to a second leg distal end. The hanger extension is disposed substantially parallel to the bottom leg and terminates at a hanger extension distal end in a mounting feature. The hanger extension terminates prior to contacting the first leg distal end such that the first leg distal end and the mounting feature define a part clearance gap through which at least a portion of the part may extend into the U-shape.