Frame for a grain bin placard
US10497291B1 · kind B1 · utility
2Cited by
5References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2018 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Nov 2, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F2023/0025
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A frame for displaying a placard on a grain bin is attached to the grain bin with conventional threaded fasteners having shank portions and head portions. The head portions of the fasteners attaching the frame to the bin do not interfere with the placard's insertion into the frame by way of ramp-like protuberances formed into the frame portions above where the fasteners are located. The protuberances deflect the placard over the fasteners' heads and allow the placard to be fully inserted into the frame with either a frictional, clearance or interference fit between the fastener and the frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.