Method of molding a shopping cart
US7780902B2 · kind B2 · utility
21Cited by
96References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2007 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Jan 25, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62B2501/065
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of molding a shopping cart component includes providing a first subcomponent and then overmolding the shopping cart component as a second subcomponent about the first subcomponent. The first subcomponent acts as an obstacle to a plastic injection stream and to a gas injection stream during the overmolding of the second component to assist in defining a first hollow section of the shopping cart component adjacent the first subcomponent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.