POWER-ASSISTANCE DEVICE
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United States of America Patent
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Issued Date -
Feb 29, 2024
app pub date -
Jan 14, 2022
filing date -
Jan 14, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
A power-assist device (1) with a piston rod (8), which is mounted movably in a housing (7) and has a first position and a second position, and with a preferably elastic return element (12), which can be arrested by a positionally variable arresting part (10) and which, in the unlocked state, can transmit an assisting force to the piston rod (8) and, in the arrested state, is decoupled in terms of force from the piston rod (8), such that, in the unlocked state, as a result of the piston rod (8) being moved into the first position, the arresting part (10) is moved out of an unlocking position into an arresting position, which enables arresting of the restoring return (12) only within a limited time period.
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