Sealing mechanism and container equipped with the same
US5923931A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 24, 1997 |
| Grant date | Jul 13, 1999 |
| Priority date | — |
| Expiry date | Oct 24, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0822
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A sealing mechanism for preventing the leakage of powder from between a through-hole and a rotary shaft which is supported between one side wall of a container containing said powder and the other side wall thereof and of which one end protrudes outwardly beyond said through-hole formed in said one side wall. A circular flange is formed on the rotary shaft, and a seal ring member is fitted between the circular flange of the rotary shaft and said one side wall. A to-be-engaged groove is formed in one end of the rotary shaft. An input gear made of a synthetic resin is fitted to the one end of the rotary shaft, and an engaging projection that engages with said to-be-engaged portion is formed in a portion of the input gear that is fitted to the rotary shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.