Oil pan
US6584950B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 29, 2002 |
| Grant date | Jul 1, 2003 |
| Priority date | — |
| Expiry date | May 29, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M2011/0091
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An oil pan which includes a shell of plastic material (e.g., of thermoplastic polyamide), and a support structure (e.g., of metal), having a plurality of perforations, that is fixedly attached to the exterior surfaces and/or the interior surfaces of the plastic shell, is described. More particularly, the oil pan (2) comprises: (a) a shell (11) of plastic material having interior and exterior surfaces, the interior surfaces of the shell defining a hollow interior (40); and (b) a support structure (12) in abutting relationship with and being fixedly attached to at least one of, (i) at least a portion of the exterior surfaces of the shell (11), and (ii) at least a portion of the interior surfaces of the shell (11), the support structure (12) has a plurality of perforations (20) having edges. The plastic shell (11) is formed by molding of plastic material onto the support structure (12), a portion of the plastic material of the shell (11) extends through at least some of the perforations (20) of the support structure (12), the edges of the perforations (20) being embedded in the plastic material extending there through, thereby attaching fixedly the support structure (12) to the plasti…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.