Cement mixing capsule
US5172807A · kind A · utility
82Cited by
28References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1991 |
| Grant date | Dec 22, 1992 |
| Priority date | — |
| Expiry date | Sep 30, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C5/64
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dental capsule for mixing a cement powder with an activating liquid having a frangible seal. The frangible seal is placed between a nozzle and the body portion of a capsule preventing unmixed cement from entering the nozzle. The nozzle has a circumferential groove facilitating positioning thereof. A vent formed in the body of the capsule prevents premature rupturing of the frangible seal upon insertion of the plug. A second and third embodiment use a two-part plug for dispensing activating liquid to the cement powder contained within the body of the capsule.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.