Linear actuator
US10295028B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 26, 2016 |
| Grant date | May 21, 2019 |
| Priority date | — |
| Expiry date | Nov 8, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H21/04
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A linear actuator provides linear displacement of an actuator plate. The linear actuator includes a set of base flexures that extend from a base plate to an actuator plate and a set of arm flexures that extend from a base arm to an actuator arm. The base arm of the base frame extends up perpendicularly from the base plate and the actuator arm, of the actuator frame, extends perpendicularly from the actuator plate. A base frame and actuator frame may be elbows that are arranged to form a box with the base flexures and arm flexures extending orthogonally within the cavity of the box. A flexure may include an extension element such as a pleated portion of the flexure that has stored length that enables the flexure to extend to increase the linear displacement region. The arm flexures prevent the base flexures from following a radius of motion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.