Abstract: A multiple degree-of-freedom motion simulator assembly comprises a fixed base, a displaceable simulator platform, and a plurality of linear actuators having upper ends thereof interconnected with the platform and lower ends thereof interconnected with the fixed base. A vibration damping unit is disposed between at least one of each of the upper ends and the platform and each of the lower ends and the fixed base. The damping units include at least a first resilient member preloaded and mounted to a major surface of a plate of the damping unit engaged to one of the ends of the linear actuator. The first resilient member provides vibration absorption such as to damp vibrations transmitted from the plate to the platform or base in at least a direction substantially perpendicular to the major surface.

Abstract: An endless belt body for a track assembly, comprising through holes, between traction lugs of the ground-engaging surface thereof, along a length thereof, located in at least one of: i) the central region of a width of the endless belt body, and ii) on the lateral parts of the width of the endless belt body.

Abstract: Described is an anti-vibratory handle for installation on a reciprocating tool supplied with a pressurized fluid and producing vibrations in the direction of an axis of reciprocation of the tool. The anti-vibratory handle comprises a stationary portion mounted to a body of the tool, a mobile portion comprising a hand-grip member and an articulation between the stationary and mobile portions. This articulation comprises a pivot assembly interconnecting the stationary and mobile portions, the pivot assembly defines a pivot axis substantially perpendicular to the tool reciprocation axis, and the hand-grip member of the mobile portion is spaced apart from both the pivot axis and the tool reciprocation axis. The articulation also comprises a resilient vibration-damping assembly interposed between the stationary and mobile portions to avoid transmission of vibrations through the articulation.

Abstract: An endless belt body for a track assembly, comprising through holes, between traction lugs of the ground-engaging surface thereof, along a length thereof, located in at least one of: i) the central region of a width of the endless belt body, and ii) on the lateral parts of the width of the endless belt body.

Abstract: Described is an anti-vibratory handle for installation on a reciprocating tool supplied with a pressurized fluid and producing vibrations in the direction of an axis of reciprocation of the tool. The anti-vibratory handle comprises a stationary portion mounted to a body of the tool, a mobile portion comprising a hand-grip member and an articulation between the stationary and mobile portions. This articulation comprises a pivot assembly interconnecting the stationary and mobile portions, the pivot assembly defines a pivot axis substantially perpendicular to the tool reciprocation axis, and the hand-grip member of the mobile portion is spaced apart from both the pivot axis and the tool reciprocation axis. The articulation also comprises a resilient vibration-damping assembly interposed between the stationary and mobile portions to avoid transmission of vibrations through the articulation.

Abstract: A multiple degree-of-freedom motion simulator assembly comprises a fixed base, a displaceable simulator platform, and a plurality of linear actuators having upper ends thereof interconnected with the platform and lower ends thereof interconnected with the fixed base. A vibration damping unit is disposed between at least one of each of the upper ends and the platform and each of the lower ends and the fixed base. The damping units include at least a first resilient member preloaded and mounted to a major surface of a plate of the damping unit engaged to one of the ends of the linear actuator. The first resilient member provides vibration absorption such as to damp vibrations transmitted from the plate to the platform or base in at least a direction substantially perpendicular to the major surface.

Abstract: A track assembly comprising guide wheels in a region of greatest impacts on the guide rails of the track, which are also the regions of greater wearout of the guide rails, the guide wheels being further arranged in a staggered position, thereby yielding a reduction in noise generation.

Abstract: The present invention relates to an anti-vibratory handle for installation on a tool producing vibrations, comprising a stationary portion mounted on a body of the tool, a mobile portion comprising a hand-grip member, and an articulation between the stationary and mobile portions. The articulation comprises a pivot assembly interconnecting the stationary and mobile portions, and a resilient vibration-damping assembly interposed between the stationary and mobile portions to restrict angular movement of the mobile portion on the pivot assembly about the stationary portion substantially within a given angular range.

Abstract: A noise reducing system for a personal watercraft. The system includes a pump insulating system which insulates the pump housing from the hull. More particularly, the pump insulating system includes at least one insulating attachment for connecting a pump housing to a supporting surface of a personal watercraft. Such insulating attachment includes an insulator having a portion mounted between the pump housing and the supporting surface. Advantageously, the system also includes a resonator and a shield, both mounted on the exhaust system, and an insulating material mounted inside an air intake pipe.