Hydraulic elevator

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO RE33171
SERIAL NO

07084205

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Disclosed is a hydraulic elevator in which the load and/or the oil temperature are detected under the running condition of a cage of the hydraulic elevator and a proper value of the deceleration delay time corresponding to this running condition is obtained to thereby control the flow of pressure-oil on the basis of the proper value of the deceleration delay time. Various values of the deceleration delay time are stored in advance in the form of table with respect to various values of load and oil temperature.

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Patent Owner(s)

Patent OwnerAddress
HITACHI LTD6-6 MARUNOUCHI 1-CHOME CHIYODA-KU TOKYO 100-8280

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ichiryu, Ken Shimoinayoshi, JP 22 318
Kido, Yasuo Katsuta, JP 2 16
Nakamura, Ichiro Katsuta, JP 81 2127
Ogasawara, Tsuyoshi Shimoinayoshi, JP 15 253

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