Molded plastic basket and rear panel for shopping cart
US5947313A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 1998 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | May 4, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S280/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A molded plastic basket for a shopping cart includes side and front walls formed of a molded gridwork of ribs extending at an angle relative to the upright direction of the basket when it is assembled to a shopping cart chassis. The front and side walls intersect each other along convex arcuate curved corner sections with the gridwork ribs continuously flowing around the corner sections up to a mold parting line provided midway around the curved sections. The ribs of the side walls extend parallel to each other to permit molding of the side walls by a transversely moveable mold section that moves towards and away from the side wall area during molding and the ribs of the front wall likewise all extend parallel to each other in a direction generally perpendicular to the direction of the side wall ribs to enable molding of the ribs of the front wall by another moveable section of a mold that moves in a direction generally perpendicular to the direction of motion of the mold section forming the side walls. The gridwork ribs come together along the mold part lines to provide an attractive appearance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.