Hydraulic elevator

Details Hydraulic elevator Hydraulic elevator

1998-03-17

2000-04-04

Noland, Kenneth W.

Elevator, industrial lift truck, or stationary lift for vehicle

Having specific load support drive-means or its control

Includes fluid supporting ram in drive-means

187414, B66B 904

Patent

active

060449330

ABSTRACT:
A drive system for a hydraulic elevator installation (1) without a machine room including an electric motor (15), a hydraulic pump (16), an oil tank (17), valves (18) and a control apparatus (19) mounted in a cabinet (10). The cabinet (10) can be mounted in direct connection with an elevator shaft (2), for example near a shaft door (6), or at any desired location, preferably in the proximity of traffic routes, in work areas or even in passageways, where good accessibility is guaranteed. A double sound insulation of the cabinet (10) and of the oil tank (17) containing the electric motor (15) and the hydraulic pump (16) damps the noise level of the drive system to the extent that the cabinet (10) can be placed at virtually any desired location without the noise developed by the drive system being disturbing in surrounding spaces.

REFERENCES:
patent: 4066148 (1978-01-01), Brown

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