| Patent Number |
Title Of Patent |
Date Issued |
| 6796666 |
Four-point planar mechanical mount with high precision |
September 28, 2004 |
| An apparatus for mounting an object precisely in a specific plane. An object is mounted on small support points rather than flat pads or other flat surfaces. The support points are stiff but not completely rigid. Exactly four support points are used. Mechanical forces are sufficient to |
| 6166829 |
Image scanner with intrinsic biasing of a scan head |
December 26, 2000 |
| An optical image scanner includes a scan head that is mounted onto a guide member with a bias torque that reduces uncertainty in position of the scan head. A drive member, such as a belt or cable, is attached to the scan head with an offset relative to a centerline of the guide member. A |
| 5311119 |
Probe contact through small amplitude vibration for bed of nails testing |
May 10, 1994 |
| A board fixturing system employed in an automatic in-circuit tester is vibrated at a sub-ultrasonic frequency that is in substantial close proximity to a resonant frequency of at least a major portion of the fixturing system to improve the probability of establishing good electrical |
| 5304921 |
Enhanced grounding system for short-wire lengthed fixture |
April 19, 1994 |
| Grounding technology is provided for a short-wire, circuit board test fixture. As a result of the grounding technology, the ground between a circuit board test system and a circuit board under test can be reliably controlled. The grounding technology provides testing at extremely higher |
| 4870353 |
Pre-loaded compression spring assembly |
September 26, 1989 |
| A pre-loaded compression spring assembly is described which preferably includes a compression spring, a base plate to support one end of the spring, and a flexible retention member which extends over the opposite end of the spring and which is adapted to retain the spring in a pre-lo |
| 4799007 |
Bendable pin board test fixture |
January 17, 1989 |
| An apparatus is described for interfacing an automatic board test system to an electronic circuit card. This interface permits short and reliable connections between the test system and electronic components located on the circuit card for the electronic signals which test these componen |
| 4771234 |
Vacuum actuated test fixture |
September 13, 1988 |
| A fixture is disclosed for connecting circuit cards having electronic components to a board test system. The fixture is vacuum actuated. The test fixture comprises a fixture base and a support assembly. The fixture base comprises a board test system interface, supports, probe plate and |
