Invention Grant
- Patent Title: SMC integrated bi-stable strips for remote actuation
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Application No.: US17216951Application Date: 2021-03-30
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Publication No.: US11460010B1Publication Date: 2022-10-04
- Inventor: Ryohei Tsuruta , Brian J. Pinkelman , Umesh N. Gandhi , Paul A. Gilmore , Mark E. Smith , Eric D. Smith , Shardul Singh Panwar
- Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
- Applicant Address: US TX Plano
- Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
- Current Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
- Current Assignee Address: US TX Plano
- Agency: Darrow Mustafa PC
- Agent Christopher G. Darrow
- Main IPC: F03G7/06
- IPC: F03G7/06

Abstract:
A remote actuator includes one or more bi-stable strips with at least one shape memory composite (SMC) spring connected to each bi-stable strip. The SMC spring includes a thermoplastic and an electrical and/or thermal conductor for transforming the length of the SMC spring upon heating. The contraction of the SMC spring transforms the bi-stable strip from its coiled stable state to its elongated stable state. The displacement of the SMC spring can be amplified by a simple machine included in the remote actuator. The remote actuator can include a shape memory alloy (SMA) strip for transforming the bi-stable strip from its elongated stable state to it curved stable state upon heating. Heating can be by Joule heating or from an adjacent heat source.
Public/Granted literature
- US20220316458A1 SMC INTEGRATED BI-STABLE STRIPS FOR REMOTE ACTUATION Public/Granted day:2022-10-06
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