Device for supplying plastic material for denture base and flask with the same
US5175008A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 24, 1991 |
| Grant date | Dec 29, 1992 |
| Priority date | — |
| Expiry date | Sep 24, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C45/73
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A device for supplying plastic material into a flask under pressure and a flask with the device, which are used for preparation of a denture. The device includes a cylinder having the inside end communicated to a cavity in the flask, a piston slidably inserted in the cylinder, a spring urging the piston toward inside of the flask, a stopper restricting the outside stroke end of the piston, and a device for adjusting elastic force of the spring. The adjusting device preferably includes a spring receiver abutting against the outside end of the spring, a screw-mechanism for moving the spring receiver in the axial direction of the cylinder, and a handle member for operating the screw-mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.