摘要:
A hydraulic pump comprises (1) an outward ring (24), including demountable blocks (30) comprising piston cylinders (32), and an inward ring (21), comprising a ring cam (23), coupled through a drive shaft (8) to the blades of a turbine (4). To enable maintenance, the outward ring is decoupled from a torque limiting device (16, 17) and rotated relative to the inward ring. Demountable blocks are then removed from the outward ring using a crane (61) including a line (62) extending from above the centre of mass of the demountable block and including a resilient portion (66) so that although the crane supplies the majority of the force required to remove the demountable block, an operator provides some force, enabling the process to be controlled. The method is suitable for maintaining large hydraulic pumps in wind turbine nacelles (2).
摘要:
A method for manufacturing a semiconductor device includes providing a patterned hard-mask layer. The hard-mask layer is provided on an exposed surface of one or more layers to be patterned of a semiconductor intermediate product. The hard-mask layer covers the exposed surface in covered areas of the one or more layers to be patterned and does not cover the exposed surface in bared areas of the one or more layers to be patterned. One or more recesses are formed in the layers to be patterned by at least partially removing the layers to be patterned in the bared areas. The hard-mask layer is ten removed. After removing the hard-mask layer the recess is filled with a filling material.
摘要:
Transport brackets are welded onto the top surface of the mower deck, each transport bracket having vertical plates with holes extending transversely through the plates. Pins extend through at least one hole in the plates and are secured to a rear mounted hitch of a tractor. The mower deck may be lifted and transported in a raised position behind the tractor, and also may be pivoted to a position for servicing.
摘要:
A storage means provides sealed storage for contents. A closure means is fused to a container by application of an electromagnetic field providing a permanent and hermetic seal between the closure and the container. The closure further includes a removable panel to provide access to the contents of the container.
摘要:
A method of producing an alkyl ester. The method comprises providing an alcohol and a triglyceride or fatty acid. An expanding gas is dissolved into the alcohol to form a gas expanded solvent. The alcohol is reacted with the triglyceride or fatty acid in a single phase to produce the alkyl ester. The expanding gas may be a nonpolar expanding gas, such as carbon dioxide, methane, ethane, propane, butane, pentane, ethylene, propylene, butylene, pentene, isomers thereof, and mixtures thereof, which is dissolved into the alcohol. The gas expanded solvent may be maintained at a temperature below, at, or above a critical temperature of the expanding gas and at a pressure below, at, or above a critical pressure of the expanding gas.
摘要:
A boat docking system having supports, a boat lift and a roof, the roof covering the dock. A fixed cover disposed over the boat dock and beneath the roof, the fixed cover attached to the supports by support brackets. The fixed cover includes a tarp having a roof and walls defining a covered space into which the boat lift can raise the boat. The fixed cover reduces the need for hard to handle traditional boat covers that attach directly to the boat to keep dust, dirt and insects out of the boat during a period of storage.
摘要:
An improved gladhand security lock apparatus is locked to a gladhand brake line coupler to immobilize a trailer. The body of the security lock apparatus is formed with an abutment surface from which depends a clevis wall and a retainer turned back from the clevis wall and spaced from the abutment surface forming a tongue receiving bight. A guard plate is formed on an end of the body and a clip with an upturned rail member is formed parallel to the guard plate and spaced therefrom. The security lock apparatus is attached to the gladhand coupler so that a tongue of the gladhand is received in the tongue receiving bight, the abutment surface of the security lock apparatus overlies a port of the gladhand coupler, and a retainer flange formed on the gladhand coupler is received between the guard plate and the clip. The security lock apparatus body comprises a barrel. A lock housing is formed in a bore in the barrel perpendicular to and confronting a keeper bolt positioned in a keeper bolt receiving bore. A lock cylinder in the lock housing is operative to drive the keeper bolt across the tongue receiving bight from an opening in the abutment surface to engage the retainer. In operation, the tongue of the gladhand coupler is inserted in the tongue receiving bight and a user drives and locks the keeper bolt against the retainer thereby locking the tongue of the gladhand into the security lock apparatus.
摘要:
A service jack is provided that includes a base and a pump handle configured to pivot therewith. A lifting arm is in communication with the pump handle and can move with respect to the base. A locking mechanism is configured for limiting movement of the lifting arm with respect to the base when in a locked configuration. The locking mechanism has a locking handle that may be carried by the pump handle that is capable of being actuated between the locked configuration and an unlocked configuration.
摘要:
A vehicle suspension assembly including a damper body and having a valve, including a moveable inertia mass, movable between first and second positions to selectively alter the compression damping rate of the vehicle suspension assembly is described. The suspension assembly includes a pressure-relief valve located in a reservoir tube.