Expansible chamber devices – With lubricating means – Portion of expansible chamber device includes solid...
Reexamination Certificate
2005-03-29
2008-05-20
Lazo, Thomas E. (Department: 3745)
Expansible chamber devices
With lubricating means
Portion of expansible chamber device includes solid...
C092S169100
Reexamination Certificate
active
07373873
ABSTRACT:
A cylinder liner and ringless piston adapted to be combined therewith in an internal combustion engine are provided that have superior wear resistance, superior scuffing resistance, and superior properties for abating friction loss between the inside surface of the cylinder and the sliding surface of the ringless piston. These embodiments can also include a cylinder liner which has at least some portion of the inner circumferential surface coated with an iron oxide film, a metallic nitride film, or other physical vapor deposition or chemical vapor deposition film, combined with a ringless piston with at least some portion of the exterior surface being coated with a metallic nitride film or other vapor deposition film.
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Lazo Thomas E.
Tangent Law Group
Weierstall, Esq. Eric J.
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