Resources Contact Us Home
Mechanical damper for disk drives having band drive actuators

Image Number 3 for United States Patent #4598328.

To damp a stepper motor powered band drive for a disk drive, there is a relatively inexpensive, but efficient mechanical damper comprising a predetermined inertial mass which is concentrically coupled to the capstan of the band drive by an energy absorbing elastomer. The mass, its geometry, and the energy absorbing characteristics of the elastomer are selected to apply a dynamic force to the stepper motor which opposes and counteracts any unwanted oscillation of the stepper motor as the read/write head of the disk drive arrives at a selected data track. This damper is relatively free of potential contaminants and is, therefore, particularly attractive for Winchester disk drives.

  Recently Added Patents
Light emitting diode package and method of fabricating the same
Hydrostatic pad pressure modulation in a simultaneous double side wafer grinder
LED light
System and method for text input with a multi-touch screen
Method of forming solderable side-surface terminals of quad no-lead frame (QFN) integrated circuit packages
Biaxially oriented film which could be thermally laminated with paper and other substrates
Deceleration dependent shift control
  Randomly Featured Patents
Liquid crystal display device
Waveguide-based Bragg gratings with spectral sidelobe suppression and method thereof
Photo-sensitive MEMS structure
Composite holders for keys and knives
Electric appliance and a detachable cord thereof
Cache sharing based thread control
LED with molded bi-directional optics
Method of manufacturing an insulated gate field effect semiconductor device having an offset region and/or lightly doped region
Thermoplastic processing of thermotropic liquid-crystalline polymers under the influence of electric fields
Apparatus for controlling the scrolling rate of a video display