Sheet product dispenser with spring assembly
US11780699B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2020 |
| Grant date | Oct 10, 2023 |
| Priority date | — |
| Expiry date | Nov 4, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2404/15
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A dispenser for dispensing sheet product is provided. The dispenser includes a housing with an outlet through which sheet product is dispensed. A knife drum is rotatable with respect to the housing. A knife is movable between a retracted position within the knife drum and an extended position where the knife protrudes outside of the knife drum to cut the sheet product. A cam follower surface is fixed with respect to the housing. A cam follower is attached to the knife and operable to engage the cam follower surface and travel therealong to transition the knife between the retracted position and the extended position. A spring assembly biases the knife drum during rotation toward a predetermined position. The spring assembly comprises a first spring and a second spring. The spring assembly is attached at a single mount position that is fixed with respect to the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.