Shopping cart having caster lift
US6923456B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2003 |
| Grant date | Aug 2, 2005 |
| Priority date | — |
| Expiry date | Nov 9, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62B2501/065
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a shopping cart, which is nestable into a preceding, similarly constructed cart and into which a following, similarly constructed cart is nestable, a chassis has front and rear casters including two rear, transversely spaced casters and has two generally longitudinal members, each extending along one side of the chassis, on which two camming elements are mounted. A transversely extending member is mounted to and bridges the longitudinal members. The transversely extending member is adapted to be upwardly cammed by the camming elements of a following, similarly constructed cart, which is being nested into the shopping cart, so as to elevate the rear casters of the shopping cart.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.