Vertically folding hand truck and methods of its operation and construction
US6601859B2 · kind B2 · utility
23Cited by
35References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 10, 2001 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | Jul 16, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62B2205/20
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A dual wheel foldable hand truck with a nose plate has a skeletal frame including laterally spaced vertical side rails. The frame has hingedly connected upper and lower frame sections with upper and lower side rails meeting at side rail interfaces. Handle operated lock slides are carried by the upper rail sections for downward sliding movement to releasably lock the frame sections in planar alignment. The foldable nose automatically locks in operative position when swung down from stowed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.