Power plants – Pressure fluid source and motor – With means purging – cleaning or separating undesirables from...
Patent
1997-08-26
2000-02-29
Lopez, F. Daniel
Power plants
Pressure fluid source and motor
With means purging, cleaning or separating undesirables from...
92 63, 92 79, F16D 3102, F15B 2104
Patent
active
060294477
ABSTRACT:
A spring brake actuator (10), with a large-force compression spring (72) in a spring chamber (101) of the housing, has vent openings (102) in the housing communicating with the spring chamber (101). A gas permeable filter element (104) covers the vent openings (102), and a filter frame assembly (106) is disposed over the filter element. The filter frame assembly (106) defines tortuous air passages from the filter element (104) to atmosphere so that air entering the spring chamber from atmosphere will be substantially free of contaminants.
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Greenzweig Daniel
Stojic Steven M.
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