Dual stage latch and release mechanism
US6964577B1 · kind B1 · utility
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0References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2004 |
| Grant date | Nov 15, 2005 |
| Priority date | — |
| Expiry date | Mar 8, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/2889
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention is a dual stage latch assembly with a cam follower pin mounted on a spring-tensioned arm, especially useful for vacuum test fixtures for printed circuit boards. The arm is spring-loaded on both sides, so that the arm is always biased to the upright and neutral position, regardless of which direction the arm is pivoted. A catch is provided to define the path of the cam pin and to hold the cam in certain positions. The cam pin follows a defined path around the catch, creating a first closed stage, a first release position, a second closed stage and a final release position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.