MEMS resettable timer
US7398734B1 · kind B1 · utility
20Cited by
20References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 9, 2006 |
| Grant date | Jul 15, 2008 |
| Priority date | — |
| Expiry date | May 19, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42C15/24
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A MEMS resettable timer including a primary inertial element and at least one secondary inertial element, which includes a camming surface. When the secondary inertial element moves, its camming surface engages the camming surface of a locking element to remove it from the notch of a subsequent inertial element. When the primary inertial element is released for movement it activates a resetting arrangement to place the secondary inertial element back to the initial position and prevent further movement of the primary inertial element. The cycle is repeatable to commence some predetermined action.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.