Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1985-02-27
1986-02-18
Ward, Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 1, 277224, 277235A, F16J 900, F02F 500
Patent
active
045709467
ABSTRACT:
A piston ring provided with a nitriding layer at entire surfaces of the piston ring body to form a compound layer and a diffusion layer, so that a compound layer is formed over the diffusion layer. From an outer peripheral surface of the piston ring body, the compound layer or both compound layer and diffusion layers is removed, and the plating or spraying layer is formed on the exposed diffusion layer or the exposed surface of the piston ring body.
REFERENCES:
patent: 2905512 (1959-09-01), Anderson
patent: 4299401 (1981-11-01), McCormick
patent: 4407515 (1983-10-01), Naito
The Iron Age, "Case Hardening with Nitrides," Aug. 5, 1926, pp. 340 and 341.
Samejima Shuji
Tsuchiya Takeshi
Nippon Piston Ring Co. Ltd.
Ward Robert S.
LandOfFree
Nitrided piston ring with outer layer on surface does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Nitrided piston ring with outer layer on surface, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nitrided piston ring with outer layer on surface will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1547576