39results about How to "Reduce and eliminate vibration" patented technology

A muffler for reducing the sounds of combustion gases exhausted from an internal combustion engine including an elongated fluid passage extending between an inlet and an outlet such that the outlet is in fluid communication with the inlet. Further, the inlet being connectable with the gases exhausted from the engine and the outlet being connectable with the atmosphere. The muffler further including an outer tank surrounding the passage and a tubular connector having a first end in fluid connection with the passage and a second end in fluid connection with the tank such that the connector produces a fluid connection between the passage and the tank. The connectors having a perforated resistance plate to restrict the fluid flow between said passage and said sound chamber thereby reducing the severity of the sound or fluid pulses entering and exiting said sound chamber, perforations in said perforated plate forming an open portion of said plate and said open portion being less than 60 percent.

The invention discloses a positioning device for a workpiece fixture in ion beam polishing equipment. The scheme includes that an annular positioning plate and the chuck type workpiece fixture interact with each other, and the annular positioning plate used as a positioning reference is horizontally and fixedly mounted, so that the workpiece fixture can be positioned by the positioning device. The positioning device is characterized in that a convex horizontal positioning plane, lifting devices and positioning pins are arranged on the upper surface of the annular positioning plate, the lifting devices and the positioning pins are symmetrically arranged along the peripheral edge of the positioning plate, a positioning plane which can cling to the horizontal positioning plane on the positioning plate is arranged on the fixture, and positioning holes which can be in one-to-one correspondence with the positioning pins on the positioning plate are formed in the fixture. The lifting devices lift the fixture with a clamped workpiece to a certain altitude and then slowly descend, so that the two positioning planes can completely cling to each other, all the positioning pins can be inserted into the positioning holes, and the workpiece fixture can be positioned. The positioning device has the advantages that positioning references are arranged on the same component, so that the workpiece fixture can be easily adjusted and can be completely positioned under the effect of the gravity of the fixture as long as the references are effectively adjusted, and the positioning device is simple in action; the positioning movement speed is controllable, so that positioning operation can be slowly carried out, and vibration can be greatly reduced and eliminated.

An isolating pulley comprising a hub comprising an inertia carrier, the inertia carrier having an inner surface, a spring carrier journalled to the hub, the spring carrier having a releasable driving engagement with the inertia carrier, a pulley journalled to the hub, a spring drivingly engaged between the spring carrier and the pulley, a clutch spring having a frictional engagement with the inner surface, and which frictional engagement is partially releasable upon a temporary, pressing contact of the pulley upon the clutch spring.

The present invention refers to a vibration damping connector (100) for reducing vibrations between a vibration prone system and an optical imaging system, said vibration damping connector comprising a first part (1) adapted to be connected to said optical imaging system, a second part (2) adapted to be connected to said vibration prone system, and at least one first shock absorbing element (3), a portion of said first part (1) is arranged inside a portion of said second part (2) along a central axis (A) or a portion of said second part (2) is arranged inside a portion of said first part (1) along a central axis (A) and said at least one flexible shock absorbing element (3) is arranged between said first part (1) and said second part (2), said vibration damping connector (100) further comprises at least one fastening device (4) for fastening said first part (1) to said second part (2) and said fastening device (2) presses said first part(1) to said second part (2) via a second shock absorbing element (5). Furthermore, use of the vibration damping. connector, in an optical system is disclosed.

A lens drive device has (i) an objective lens and (ii) a lens holder, to a side face of which coils for drive control are attached. The surface where the coils are adhered, or the side surface, is an irregular surface where a recess/projection section for restricting the direction of flow of an adhesive is formed. The coils and the lens holder are integrally formed together by the adhesive with the recess/projection section in between.

A method to improve vibration isolation in semiconductor process level inhibits vibration frequencies transmitted though building structure from production tools, pumps, compressors, chillers, AHUs (Air Handling Units), and footfalls traffic on raised floor system on to tool pedestals and pads from affecting semiconductor fabrication processes. The tool pedestal/pad for modern semiconductor FABs are required have very small tolerance to ambient vibration. Therefore, reduction and isolation of vibration of tool pedestal/pad is the key requirement for safe, reliable and uninterrupted operation of modern semiconductor FABs. Sound proofing material and foam is injected into hollow steel and/or aluminum support members and sound proofing adhesives and/or caulking are applied at points of connections in conjunction with mechanical fastening. In various applications, placement of shaped wielded rod utilized for dissipating vibration energy in center of hollow member which is surrounded with sound proofing material and/or foam.

A method of increasing the spatial uniformity of the detected intensity of a beam of light from a laser in a system including the laser and a light detector. In one embodiment the method includes the steps of generating a beam of light with the laser; and moving the beam of light and the light detector relative to each other, such that the detector averages the spatial intensity of the beam of light over time. In another embodiment the invention relates to a system for increasing the detected spatial uniformity of the intensity of a beam of light. In one embodiment the system comprises a light detector; a laser source for generating the beam of light; and a means for moving the beam of light and the detector relative to one another such that the detector averages the intensity of the light beam over time.