Piston mold assembly and method of constructing a piston therewith
US7891403B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2008 |
| Grant date | Feb 22, 2011 |
| Priority date | — |
| Expiry date | Apr 28, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02F3/0084
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A mold assembly for forming a piston and method of molding a piston therewith includes a pair of mold halves moveable toward and away form one another along a linear path that is substantially perpendicular to a longitudinal central axis of the piston between an engaged position to provide at least portion of a mold cavity for forming an outer periphery of the piston and a disengaged position to allow extraction of the piston from the mold cavity. The assembly also has a pair of mandrels moveable along a linear path into an engaged position between the pair of mold halves to form an undercut of the piston. The pair of mandrels are movable to a disengaged position to allow extraction of the piston vertically along the axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.