Cylinder device with force multiplier

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9188141
APP PUB NO 20150159680A1
SERIAL NO

14627088

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A first piston (21) is coupled to an output rod (2) inserted in a housing (1). A second piston (22) is inserted in the housing (1) radially outside of the output rod (2). A force multiplier (36) has a wedge space (39) and a plurality of engaging balls (40). When force multiplication driving is started, the wedge space (39) is formed between a transmitting portion (37) provided in the output rod (2) and a receiving portion (38) provided in the housing (1) so as to get narrower as it extends radially inward. Before the force multiplication driving is started, the engaging balls (40) are brought into contact with an outer circumferential surface of the output rod (2), and when the force multiplication driving is started, the engaging balls (40) are pushed out toward the wedge space (39) to engage with the transmitting portion (37).

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First Claim

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Patent Owner(s)

Patent OwnerAddress
KOSMEK LTDJAPAN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yokota, Hideaki Hyogo, JP 24 121

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