Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1987-08-12
1990-02-27
Shoop, Jr., William M.
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific drive means for support
B66B 104
Patent
active
RE0331716
ABSTRACT:
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.
REFERENCES:
patent: 2669324 (1954-02-01), Lund
patent: 3530958 (1970-09-01), Brannon et al.
patent: 3955649 (1976-05-01), Takenoshita et al.
patent: 4354576 (1982-10-01), Kajiyama
patent: 4380049 (1983-04-01), Makinen
patent: 4446946 (1984-05-01), Kajiyama et al.
Ichiryu Ken
Kido Yasuo
Nakamura Ichiro
Ogasawara Tsuyoshi
Duncanson Jr. W. E.
Hitachi , Ltd.
Shoop Jr. William M.
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