Friction core brake
US8714471B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 29, 2010 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Feb 16, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J15/044
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A cartridge assembly is disclosed. The cartridge assembly includes a core, a cartridge housing defining a cavity that receives the core, a shaft extending from the cartridge housing into the cavity and at least part way into the core, and a torsion spring. The torsion spring is helically wound to define a coiled outer surface that is received in the core and also includes at least one end that engages the shaft. When the core is rotated in a first direction about the shaft, a circumference of the coiled outer surface of the torsion spring increases thereby restricting a rotation of the core in the first direction. When the core is rotated in a second direction opposite the first direction, the coiled outer surface provides a controlled amount of drag to resist a rotation of the core in the second direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.