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US 5,346,371 AGranted
Hydraulic elevator oil tank
AssigneeOtis Elevator Company
InventorsLouis Bialy, Rajendra V. Mistry
Life of this patent
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Abstract
An elevator hydraulic tank is provided with shaped sides which increase the rigidity and heat dissipating ability of the tank. The shaped sides of the tank may be corrugated. A hydraulic machine is mounted on the underside of the tank lid so that maintenance of the machine does not require draining of the tank. The shaped sides are enclosed by an outer shell which further minimizes noise emanating from the tank.
Claims7
An elevator tank for holding hydraulic fluid comprising:
- a first end panel,
- a second end panel,
- an axis extending between said first and second end panels, and
- a single third panel forming a trough for holding said hydraulic fluid, said third panel having a first end portion attaching to said first end panel, and a second end portion attaching to said second end panel, said third panel having corrugations in planes normal to said axis such that the heat and noise dissipating ability and strength of the tank is enhanced.
1 more element
Dependencies are inferred from the claim text.