| Patent Number |
Title Of Patent |
Date Issued |
| 5271677 |
Method for eliminating whirl instability in a gas supported bearing |
December 21, 1993 |
| A gas supported bearing includes a first stationary bearing element having a longitudinal axis and a first bearing surface. A second rotating bearing element is coaxially aligned with respect to the first bearing element and includes a second bearing surface. A pneumatic load ramp is for |
| 5019738 |
Self-pressurizing gas supported surface-roughness bearing |
May 28, 1991 |
| A self-pressurizing gas supported bearing includes a cylindrical bearing sleeve having a longitudinal axis and a cylindrical inner surface forming a first bearing surface with a random surface texture having a first R.sub.a roughness profile. A cylindrical bearing shaft is positioned |
| 4643569 |
Dual beam laser inspection apparatus |
February 17, 1987 |
| An optical input beam is split into first and second beams lying in first and second non-parallel planes. A polygon mirror scanner receives the first and second beams on a single facet and generates first and second angularly displaced, non-parallel synchronized scans. Redirecting means |
| 4537465 |
Apparatus with two input beams for generating optical scans |
August 27, 1985 |
| A system is disclosed for transforming a collimated beam of light into a beam of light which repetitively scans a fixed path by utilizing first and second mirrors repetitively rotated through a predetermined angular displacement. The angle between each mirror facet and mirror axis of |
| 4509819 |
Optical beam pulse generator |
April 9, 1985 |
| An optical beam pulse generator comprises segmented reflecting means aligned to receive an input light beam. The segmented and reflecting means includes a plurality of circumferentially spaced apart mirror facets having a centrally located, vertically oriented axis of rotation and mi |
| 4433894 |
Method and apparatus for generating optical scans |
February 28, 1984 |
| A system is disclosed for transforming a collimated beam of light, such as that generated by a laser, into a beam of light which repetitively scans a fixed path by utilizing a mirror which is repetitively rotated through a predetermined angular displacement. The angle between the mirror |
