Unwind spool assembly
US7014139B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2003 |
| Grant date | Mar 21, 2006 |
| Priority date | — |
| Expiry date | Jul 3, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/192
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An unwind spool assembly for dispensing material wound into a roll includes a rotatable shaft and a mounting block rotatably mounted on the shaft for rotation about the shaft in a wind direction and an unwind direction, wherein in the unwind direction the material unwinds from the roll, and in the wind direction the material winds onto the roll. A biasing member interposed between the shaft and the mounting block rotatably biases the mounting block toward the wind direction. In another embodiment, a slip clutch is fixed to the shaft for maintaining a drag on the shaft as the shaft rotates in the unwind direction to maintain tension in the material unwinding from the roll. In yet another embodiment, the unwind spool assembly includes a spool core for holding the roll of material. The spool core is rotatable about an axis, and at least one flange extending radially from the core is rotatable about the axis independently of the core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.