Sheet stapler
US4978045A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1990 |
| Grant date | Dec 18, 1990 |
| Priority date | — |
| Expiry date | Mar 19, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25C5/1686
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A sheet stapler apparatus including a cartridge for containing a belt of connected staple wires, a movement confining device provided in the cartridge for confining movement of the staple wires, and a device for stapling sheet materials with the leading staple wire from the belt. A device feeds the staple wires out of the cartridge to the stapling device, and a detecting device detects when the staple supply in the cartridge is almost empty. A control device, responsive to the detecting device, prohibits feeding of the belt by the feeding device, at which time the movement confining device acts on the staples to keep them in the cartridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.