Hydraulic oil tank
AssigneeMcNeilus Truck and Manufacturing, Inc.
InventorsWilliam L. Loefke, Ronald E. Christenson, Brandon J. McNeilus
Life of this patent
Estimating the term…
Abstract
An improved oil tank for storing hydraulic fluid and the hydraulically-powered system is fabricated from a polymeric material which is resistant to chemical breakdown from oil. The tank is constructed in a manner which facilitates internal circulation of hydraulic oil during use. The novel configuration of the tank lends itself to inexpensive fabrication through a rotational molding process. The tank is lightweight, inexpensive to manufacture, and is particularly advantageous for use in vehicle-mounted hydraulic drive systems.
Claims24
An improved vehicular system for mixing and dispensing concrete, comprising:
- a truck;
- a hydraulic system on said truck, said hydraulic system including an improved oil tank comprising an outer wall defining a closed inside space;
- inlet nipple means defined in said outer wall for allowing hydraulic oil to be supplied to a first portion of said inside space;
- and
- an outlet nipple means defined in said outer wall for allowing hydraulic oil to be drawn outwardly from a second portion of said inside space, said outer wall being constructed from a lightweight polymeric material which is resistant to chemical breakdown from oil, whereby the weight and cost of said tank is reduced relative to tanks which were heretofore known.
An improved vehicular system for mixing and dispensing concrete, comprising:
- a truck;
- a mixing drum mounted for rotation on said truck;
- and
- hydraulic means for selectively turning said mixing drum, said hydraulic means including an improved oil tank comprising an outer wall defining a closed inside space;
- inlet nipple means defined in said outer wall for allowing hydraulic oil to be supplied a first portion of said inside space;
- and outlet nipple means defined in said outer wall for allowing hydraulic oil to be drawn outwardly from a second portion of said inside space, said outer wall being constructed from a lightweight polymeric material which is resistant to chemical breakdown from oil, whereby the weight and cost of said tank is reduced relative to tanks which were heretofore known.
An improved oil tank for use with a hydraulic operating system, comprising:
- an outer wall defining a closed inside space;
- inlet nipple means defined in said outer wall for allowing hydraulic oil to be supplied to a first portion of said inside space;
- outlet nipple means defined in said outer wall for allowing hydraulic oil to be drawn outwardly from a second portion of said inside space, said outer wall being constructed from a lightweight polymeric material which is resistant to chemical breakdown from oil, whereby the weight and cost of said tank is reduced relative to tanks which were heretofore known;
- and
- means adapted for bracing an oil filter against external forces, said bracing means being integral with a portion of said outer wall.
Dependencies are inferred from the claim text.