Blow-molded wheels having undercut treads, methods for producing the same, and children's ride-on vehicles including the same
US8348285B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2011 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | May 9, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/5218
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Improved blow-molded wheels, methods for producing the same, and children's ride-on vehicles including the same are disclosed. The blow-molded wheels may include a blow-molded body that has a tread surface, first and second sidewalls and an axis. The body may be configured to rotate about the axis. The tread surface may extend circumferentially around the body and may extend between the first and second sidewalls. A first region of the tread surface may be disposed between the first sidewall and the central circumference of the blow-molded body. A second region of the tread surface may be disposed between the second sidewall and the central circumference of the blow-molded body. A recessed region may be positioned between the first region and the second region with the radial distance to the recessed region being less than the radial distances to the first and second regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.