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公开(公告)号：US11413200B2
公开(公告)日：2022-08-16
申请号：US16776346
申请日：2020-01-29
Applicant: Yen Ching Chu
Inventor： Yen Ching Chu
Abstract: Methods and apparatuses are disclosed to help the elderly or physically impaired individual standing up from a chair, a bench, a wheel chair, a toilet seat, a commode, a rollator seat, a walker seat, or a car seat. The disclosed apparatus to generate lifting thrust for individual to stand up from a chair has a base, a slidable seat pivoted mounted on the base and a lifting spring to reserve the energy on sitting down and release the saved energy on standing up.
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