Expansible chamber devices – Piston – Nonmetallic portion
Reexamination Certificate
2006-11-28
2006-11-28
Look, Edward K. (Department: 3745)
Expansible chamber devices
Piston
Nonmetallic portion
C092S248000, C277S436000, C277S438000
Reexamination Certificate
active
07140291
ABSTRACT:
An oil-free/oil-less air compressor with a piston positioned for reciprocating in a bore, the piston having a first piston ring assembly made from a rigid, high temperature polymer, and a second piston ring assembly comprising a first portion that engages the bore, the first portion made from a relatively soft, self-lubricating polymer, and a second portion that biases the first portion against the bore.
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Article “Sealing and guiding elements for compressors Oil-free—The environment challenge to industry” from website www.elringklinger-kunstsoff.de.
Article “Elring PTFE Properties and applications of an exceptional material” from website www.elringklinger-kunstsoff.de.
Article “Elring Spring Energised Seals Compact—universal—predictable” from website www.elringklinger-kunstsoff.de.
Article “Compound Know-how Leads to Innovative Solutions” from website www.elringklinger-kunstsoff.de.
Article “Piston and Rod Seals Spring-energized Seal Details” from website www.elringklinger-kunstsoff.de.
Article “Spring-energized Seal Types” from website www.elringklinger-kunstsoff.de.
Dunaevsky Valery
Gilbert Gene
Bendix Commercial Vehicle Systems LLC
Clair Eugene E.
Leslie Michael
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