Precision cutting instrument for preparing immunoassay strips
US4738177A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Mar 19, 1986 |
| Grant date | Apr 19, 1988 |
| Priority date | — |
| Expiry date | Mar 19, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/8831
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An apparatus for obtaining highly uniform thin rectangular strips from solid support sheets, such as antigen-laden nitrocellulose sheets used in immunoassays, is disclosed which includes a rectangular-shaped base plate having longitudinal parallel grooves, a hinged rectangular-shaped top plate having longitudinal parallel slots and a fastening element to secure the top plate to the base plate so that the longitudinal slots of the top plate register precisely above the longitudinal grooves of the base plate. The apparatus also includes cutting blades, a holder for holding the cutting blades, a sliding mechanism to move the holder and the blades through the longitudinal parallel slots, solid support sheet and across the longitudinal parallel grooves, and hold down bars and trackways to guide the cutting blades through the longitudinal parallel slots and across the longitudinal parallel grooves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.