METHOD OF AND APPARATUS FOR MONITORING MASS FLOW RATE OF LUBRICANT VAPOR FORMING LUBRICANT COATINGS OF MAGNETIC DISKS
Lubricant coatings are applied as lubricant vapor to magnetic disks in a lubricant vapor flow path between the disks and a reservoir for liquid lubricant that is heated to the vapor. The flow path includes a vapor chamber between the reservoir and an apertured diffuser. Plural piezoelectric crystals...
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| creator | AMES KENNETH D PETERSEN CARL |
| description | Lubricant coatings are applied as lubricant vapor to magnetic disks in a lubricant vapor flow path between the disks and a reservoir for liquid lubricant that is heated to the vapor. The flow path includes a vapor chamber between the reservoir and an apertured diffuser. Plural piezoelectric crystals selectively, at different times, monitor the flow rate of lubricant vapor flowing in the vapor chamber, a result achieved by selectively positioning a shutter that is selectively opened and closed between the vapor flowing in the vapor chamber and the crystals. Temperature variations of the crystals are compensated by a feedback arrangement for maintaining the crystal temperature constant. |
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| subjects | CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION |
| title | METHOD OF AND APPARATUS FOR MONITORING MASS FLOW RATE OF LUBRICANT VAPOR FORMING LUBRICANT COATINGS OF MAGNETIC DISKS |
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