Mechanical translator with ultra low friction ferrofluid bearings
First Claim
1. A mechanical translator, comprising:
- a substrate, and a magnet disposed for movement on said substrate, said magnet arranged to carry a load and having a magnetic axis generally transverse to said substrate.
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Accused Products
Abstract
A mechanical translator includes at least one magnet that is disposed on a substrate to carry a load and has a magnetic axis generally transverse to the substrate, establishing a magnetic field with maximum external density adjacent the substrate. An ultra low friction interface is obtained with ferrofluid bearings, such as a light mineral oil medium mixed with isoparaffinic acid, which establish a critical angle of displacement from a horizontal static position of less than 1 degree, and preferably less than 10 minutes. A controller of magnetic material can be placed on the opposite side of the substrate to control the movement of the magnets.
18 Citations
55 Claims
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1. A mechanical translator, comprising:
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a substrate, and a magnet disposed for movement on said substrate, said magnet arranged to carry a load and having a magnetic axis generally transverse to said substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A mechanical translator, comprising:
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a substrate, and a magnet disposed for movement on said substrate, said magnet arranged to carry a load and establishing a magnetic field which has its maximum external density adjacent said substrate. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A mechanical translator, comprising:
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a substrate, and a plurality of magnets disposed for movement on said substrate and carrying a platform, said magnets having respective magnetic axes generally transverse to said substrate. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A mechanical translator, comprising:
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a substrate, and a plurality of magnets disposed for movement on said substrate and carrying a platform, said magnets establishing respective magnetic fields which have their maximum external densities adjacent said substrate. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. Vapor deposition apparatus, comprising:
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a vacuum chamber having a floor, at least one magnet disposed for movement on said floor and carrying a platform for a substrate, each magnet having a magnetic axis generally transverse to said floor, a vapor source for depositing a thin film on a substrate carried by said platform, and a controller of magnetic material outside said chamber on the opposite side of said floor from said magnets, said controller arranged to translate to impart a corresponding translation to said magnets and platform. - View Dependent Claims (44, 45, 46)
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47. A mechanical translator, comprising:
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a substrate, and at least one magnet disposed for movement on said substrate and arranged to carry a load, each magnet 5 having a magnetic axis at an angle of at least 45°
to said substrate and a critical angle of displacement from a horizontal static position of less than 1 degree. - View Dependent Claims (48, 49, 50, 51, 52)
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53. An ultra low friction ferrofluid mixture, comprising:
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a light mineral oil medium, isoparaffinic acid mixed with said light mineral oil, and magnetizable nanoparticles suspended in said mixture. - View Dependent Claims (54, 55)
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Specification