Abstract: An oil returning valve set with multi-stage throttling control includes an oil returning channel implemented in oil in an oil hydraulic equipment. The two ends of the oil returning channel are connected to a pressurized oil collecting cavity and a pressurized oil discharging cavity respectively. A plurality of throttling valve plugs and oil returning valve plug are arranged in the oil returning channel, and a normally-open draining gap is also formed among the plurality of throttling valve plugs. When the oil returning valve plug is opened, a plurality of the throttling valve plugs are arranged in series to generate multi-stage throttling oil hydraulic draining control, which improves the problem that the valve opening allowance of the throttling valve for oil returning and pressure relief of traditional oil hydraulic equipment is not sufficient.

Abstract: A reduced-noise pneumatic motor has a housing with a cap disposed at a first end, the cap having an air inlet; a base disposed at a second end, the base having an air outlet hole formed therein and configured to at least partially receive a noise damping system, and a piston pump extending therethrough; and bolts extending from the cap to the base to secure the cap and the base to the housing. A pneumatic piston is disposed within the housing, and includes a shuttle valve situated within a central bore of the pneumatic piston. A piston rod has a first end extending into the piston pump and a second end secured to a spring which biases the piston rod against the pneumatic piston.

Abstract: An epicyclic gear system features a cylindrical flywheel with a flywheel cavity, a plurality of mounting pillars, an annular ring gear mounted on the mounting pillars, and an annular sun gear mounted to and extending from the flywheel cavity. The epicyclic gear system has a planet carrier mounted to an axle shaft and a planet gear mounted to the planet carrier. The axle shaft passes through an axle aperture, a ring gear aperture, and a sun gear aperture. The planet gear engages the ring gear and the sun gear to provide a desired gear ratio for rotating the flywheel via rotation of the axle shaft, the planet carrier, the planet gear, and the sun gear.

Abstract: Embodiments of transformable tables are disclosed. A transformable table has a lifting mechanism and a platform secured to the lifting mechanism. The platform has a stationary panel; a plurality of expansion panels positioned on either side of the stationary panel; and a plurality of extension panels in slidable engagement with the expansion panels and the stationary panel. The stationary panel, the expansion panels, and the extension panels are formed from a plurality of hollow tubes, and the hollow tubes re spaced apart a predetermined distance to form forming spaces therebetween and are secured together with a reinforcement member. The expansion panels extend laterally outward from the stationary panel, and the extension panels extend longitudinally outward from the connection with the expansion panels and the stationary panel.

Abstract: A device for lifting a small vehicle having a frame and a hood includes a lifting mechanism configured to move a platform from a lowered position to a raised position; and a saddle attached to the platform. The saddle has a top plate having a front side and a back side, opposed first and second side plates extending vertically in a first direction, and a lip extending vertically in a second direction. A supporting member extends outwardly from the top plate. An elbow has a first portion releasably coupled to the supporting member, and a second portion extending upwardly from the first portion. A hook disposed on a threaded handle attaches to the second portion of the elbow and is configured to move between a lowered position and raised position. The lip engages with the frame of the vehicle, and the hook fastens to a portion of the hood.

Abstract: One disclosed lifting apparatus includes a base, a receiving portion, and a first pair of laterally offset arms. The base has proximal and distal ends, and the laterally offset arms are rotatably coupled to the base for movement between lowered and raised positions. The arms are also rotatably coupled to the receiving portion, and the receiving portion is relatively near the base distal end when the arms are at the lowered position. The arms of the first pair of arms do not share a common axis of rotation with one another. Further, a height of the first pair of arms when at the lowered position is less than the sum of: (a) a thickness of one arm of the first pair of arms; (b) a thickness of the other arm of the first pair of arms; and (c) a height of the base at the distal end.

Abstract: An epicyclic gear system features a cylindrical flywheel with a cylindrical flywheel cavity, a plurality of cylindrical mounting pillars, an annular ring gear mounted on the cylindrical mounting pillars, and an annular sun gear mounted to and extending from the flywheel cavity. The epicyclic gear system features a planet carrier mounted to an axle shaft and a planet gear mounted to the planet carrier. The axle shaft passes through an axle aperture, a ring gear aperture, and a sun gear aperture. The planet gear engages the ring gear and the sun gear to provide a desired gear ratio for rotating the flywheel via rotation of the axle shaft, the planet carrier, the planet gear, and the sun gear.

Abstract: A planetary gear system in an exercise machine featuring a flywheel; an axle shaft positioned through the center of the flywheel, a sun gear disposed on the axle shaft and fixedly attached to the flywheel, a housing disposed on the axle shaft, a planet carrier fixedly attached to the axle shaft and disposed in the housing, and a ring gear fixedly attached in the housing. One or more planet gear wheels are rotatably attached to the planet carrier. The planet gear wheels can rotate independently of the planet carrier. Rotation of the axle shaft in a first direction rotates the planet carrier in the first direction, thereby causing the planet gear wheel to rotate in a second direction within the ring gear. Rotation of the planet gear wheel in the second direction causes the sun gear and the flywheel to together rotate in the first direction.

Abstract: One disclosed lifting apparatus includes a base, a receiving portion, first and second arms, and a support. The base has a proximal end, a distal end, and first and second opposed sides. The first side has a plurality of receiving areas spaced apart between the proximal and distal ends. The arms are rotatably coupled to the base for movement between lowered and raised positions, and are coupled to the receiving portion. The receiving portion is relatively near the base distal end when the first and second arms are at the lowered position, and the receiving portion is relatively distant to the base distal end when the first and second arms are at the raised position. The support rotatably extends from the first arm and automatically engages at least one of the receiving areas when the first and second arms move from the lowered position to the raised position.

Abstract: One disclosed lifting apparatus includes a base, a receiving portion, and a first pair of laterally offset arms. The base has proximal and distal ends, and the laterally offset arms are rotatably coupled to the base for movement between lowered and raised positions. The arms are also rotatably coupled to the receiving portion, and the receiving portion is relatively near the base distal end when the arms are at the lowered position. The arms of the first pair of arms do not share a common axis of rotation with one another. Further, a height of the first pair of arms when at the lowered position is less than the sum of: (a) a thickness of one arm of the first pair of arms; (b) a thickness of the other arm of the first pair of arms; and (c) a height of the base at the distal end.

Abstract: Multi-directional jacks and hydraulic systems are set forth. In one embodiment, a fluid collecting system in a hydraulic apparatus includes an elongate housing for holding fluid, a guide bar, a guide block, and a collection hose. The elongate housing has proximal and distal ends, and the guide bar extends between the proximal and distal ends. The guide block is coupled to the guide bar for sliding movement along the guide bar toward the proximal and distal ends; the sliding movement of the guide block is caused by orientation of the elongate housing and gravity. The collection hose extends inside the housing and is coupled to the guide block such that an open end of the collection hose is adjacent the housing distal end when the guide block is at a maximum amount of travel toward the distal end.

Abstract: Scissor jacks are disclosed herein. In one embodiment, a scissor jack includes a base, a saddle, a leadscrew, and a pair of arms. Each arm is rotatably coupled to the base and the saddle, and each arm is hinged at an elbow. A locking nut member having a threaded surface complementary to the leadscrew is rotatably coupled to one of the arms. The locking nut member is rotatable between an engaged configuration in which the threaded surface engages the leadscrew and a released configuration in which the threaded surface is disengaged from the leadscrew. The saddle is movable toward or away from the base without rotating the leadscrew while the locking nut member is at the released configuration, and the locking nut member must be at the engaged configuration for rotation of the leadscrew to cause the saddle to move toward or away from the base.

Abstract: A shock-absorbing wheel mounting structure used in a horizontal jack is disclosed. The wheel mounting structure includes an axial sleeve (4) affixed to a rear wheel mount (5) of the horizontal jack (100), and a shaft (2), vertically slideably mounted in the axial sleeve (4) and riveted to a bracket (1). The bracket (1) supports a wheel (71). A compression spring (3) is sleeved onto the shaft (2) and stopped between a stop flange around the periphery of the shaft (2) and the top wall of the axial sleeve (4). This arrangement serves to impart a downward pressure to the shaft (2) relative to the axial sleeve (4).