Hydraulic-powered device

Details Hydraulic-powered device Hydraulic-powered device

1975-09-22

1977-09-13

Pendegrass, Verlin R.

Lubrication

Systems

Machine tools

91235, F01M 900

Patent

active

040475956

ABSTRACT:
In a first embodiment an improved, hydraulic-powered paving breaker is depicted in which a novel arrangement is provided for internally lubricating the breaker. In the arrangement an elbow taps off discharging pressured hydraulic fluid from the breaker and, through a manifold line coupled to fittings, which are in penetration of the housing of the breaker, admits hydraulic fluid into the breaker to lubricate a reciprocating plunger, moil, and O-ring seals. In an alternative embodiment, a conduit is formed entirely within the breaker for the same purpose. In both embodiments a restrictor device is interposed between the supply of pressured hydraulic fluid and the points of fluid injection to insure a uniform supply of fluid to the latter at a given prescribed pressure.

REFERENCES:
patent: 1152398 (1915-09-01), Corey
patent: 2457893 (1949-01-01), Hlinsky
patent: 2682203 (1954-06-01), Senn
patent: 3737008 (1973-06-01), Walker

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