Bi-tech piston

Expansible chamber devices – Piston – Open-ended hollow skirt type

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Details

92216, 92219, 92222, 1231936, F16J 104, F02F 300

Patent

active

054995728

ABSTRACT:
A piston for developing compression within the cylinder of a combustion engine or other type compression generating apparatus; said piston being a two-piece assembly, whereas the topside portion, or traditionally known as the crown, being of relative disc-shape in relation to asymetrics of said piston, is connected to the lower portion, or traditionally known as the skirt, by a distinct fastening means that consist of said crown being concaved from the underside and having multiple vertically positioned ridges that align the inside perimeter of said underside. Said skirt has another set of matching vertically positioned ridges that align the outer perimeter at the top of said skirt, as said top is appropriately sized to match said underside of said crown so that said crown may be press-fitted to said top of said skirt for a rigid and complete piston assembly. Said two-piece assembly allows said piston to be comprehensively configured of two distinctively different material compositions, such as, said crown being composed of a latent-cast elemental metal and said skirt being composed of a resin-based epoxy.

REFERENCES:
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patent: 3610111 (1971-10-01), Dilks, Jr.
patent: 4306489 (1981-12-01), Driver et al.
patent: 4356800 (1982-11-01), Moebus
patent: 4440069 (1984-04-01), Holtzberg et al.
patent: 4450610 (1984-05-01), Schaper
patent: 4603617 (1986-08-01), Barth et al.
patent: 4727795 (1988-03-01), Murray et al.
patent: 5029562 (1991-07-01), Kamo
patent: 5174193 (1992-12-01), Parker et al.
patent: 5193435 (1993-03-01), Parker

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