## and Mahle Metal Leve S.A. Brasil The invention relates to steel or cast iron piston rings with a coating of chromium nitride deposited by a physical vapour deposition on the sliding surface. The coating is composed of a columnar crystal structure of CrN with an oxygen content in solid solution
Gasket with inner plate having embossing
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 215 KB
- Volume
- 2008
- Category
- Article
- ISSN
- 1350-4789
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β¦ Synopsis
This invention relates to the sealing of air conditioners particularly to inhibit water penetration between different sections of the unit. A problem exists that hard-wiring is routed through spaces that provide paths for water to move between the components and a sealant is often used. This patent provides a removable and re-attachable seal that inhibits water from penetrating between sections of an air conditioner
π SIMILAR VOLUMES
Both the external and internal threads taper at between 0.666 inch per foot and 1.0 inch per foot, and have a stab flank and load flank angles that are equal to about 33ΒΊ.
This patent describes the manufacture of a seal with graded properties that may be used as the bearing seal in a down-hole rock bit. A property gradient is formed in a seal, or a section of the seal, from the exterior surface inwards without changing the seal composition.