Foldable utility cart with lift mechanism
US6889998B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2001 |
| Grant date | May 10, 2005 |
| Priority date | — |
| Expiry date | Oct 8, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S280/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A foldable utility cart (10) includes a pair of spaced, parallel frame members (22). A collar (50) is disposed about each of the frame members (22) and is slidable therealong. A pair of front legs (40) and a pair of rear legs (46) are pivotally connected to the collars (50). The front and rear legs (40, 46) each support a wheel (44, 48). The collars (50) can be moved from a raised position where the legs (40, 46) and wheels (44, 48) are folded adjacent each other, to a lowered position where the legs (40, 46) and wheels (44, 48) are extended to support the cart (10) for movement on the ground. The cart (10) includes a moveable basket carrier assembly (18). The basket carrier assembly (18) includes toothed racks (110) that are connected to channel members (24) for movement therealong. A ratchet clutch (136) is used to permit up or down movement of the racks (110) and to maintain the racks (110) at any desired vertical position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.