Pumps – With condition responsive pumped fluid control – Pump inlet or pump chamber vented to ambient
Reexamination Certificate
2006-11-21
2006-11-21
Koczo, Jr., Michael (Department: 3746)
Pumps
With condition responsive pumped fluid control
Pump inlet or pump chamber vented to ambient
C096S113000, C417S440000
Reexamination Certificate
active
07137788
ABSTRACT:
An apparatus for removing oil from air in an air compressor that has a piston reciprocable in a cylinder to compress the air, includes an oil removal chamber associated with the compressor. An unloader valve has an unactuated condition and an actuated condition disabling flow of compressed air out of the compressor and establishing fluid communication between the cylinder and the oil removal chamber. The apparatus may include an oil discharge port for draining oil from the oil removal chamber to a location away from the cylinder, and/or a filter element in the oil removal chamber.
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Bendix, Service Data—SD-01-333; TU-FLO 550 Compressor; BW1639 2002, Bendix Commercial Vehicle Systems LLC; Apr. 2000; USA.
International Search Report & Written Opinion from PCT/2005/044207.
Bendix Commercial Vehicle Systems LLC
Calfee Halter & Griswold LLP
Koczo, Jr. Michael
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