Freewheel flow track systems
US7455165B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 28, 2004 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Jun 1, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G13/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Freewheel flow track systems are adapted for transporting pallets and/or cartons in heavy-duty pallet and carton flow applications. A flow track system may include multiple track sub-assemblies, each track sub-assembly including multiple wheel assemblies. Each wheel assembly comprises a wheel rotatably mounted on an axle. A lubricant coating may be fixed to and bonded with the axle. The wheel may be constructed from a polycarbonate-based resin that is impregnated with a lubricant for providing lifetime lubrication to the wheels. The wheel includes a hub, a rim concentric with the hub, a web connecting the hub to the rim, and ribs connecting the hub to the rim through the web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.