Patent · US Active

SMA-based discrete actuator

US11578709B2 · kind B2 · utility

0Cited by

1References

13Claims

0Family size

Assignee

ACTUATOR SOLUTIONS GMBH · DE

Inventors

Markus Köpfer · Regelsweiler, DE
Matthias Peterreins · Gunzenhausen, DE
Markus Kagerer · Ettenstatt, DE

Key dates

Filing date	Dec 18, 2020
Grant date	Feb 14, 2023
Priority date	—
Expiry date	Dec 18, 2040

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF03G7/064
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The present application relates to a stepwise discrete actuator (10) with two shape memory alloy wires (15, 15′) used in an antagonistic configuration to drive a slider (13) that moves a toothed element (12) through tooth-engaging fingers (131, 132) that are spaced at rest by a distance F that is shorter than the distance T between adjacent teeth by an amount sufficient for a stationary finger lifter (14) to lift that of the slider fingers (131, 132) that does not engage the movable toothed element (12) such that it clears the teeth of the latter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.