Bagger safety system
US10865005B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2018 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Feb 15, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V8/14
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A bagger safety system includes a controller, a heating element, a light-emitting device, a light-detecting device and a backing assembly. The backing assembly includes a backing bar, a pair of reflectors and a seal backing element movably coupled to the backing bar by at least one mechanical force generating member so as to create a space between the seal backing element and the backing bar when no external force is applied to the mechanical force generating member. Light emitted from a light-emitting device reflects off the reflectors to the light-detecting device when no external force is applied to the mechanical force generating member. Movement of the seal backing element toward the backing bar prevents light emitted from the light-emitting device from reaching the light-detecting device and the controller controls movement of the backing assembly toward the heating element based on whether light from light-emitting device reaches the light-detecting device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.