Stapler
US4318555A · kind A · utility
33Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 15, 1980 |
| Grant date | Mar 9, 1982 |
| Priority date | — |
| Expiry date | Jan 15, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB27F7/21
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A stapler for automatically driving staples of at least two different characteristics, such as length, into a workpiece. The stapler includes a staple driving member for driving staples into a workpiece, a staple forming member for forming staple blanks into staples and apparatus for selectively providing to the staple forming member staple blanks of at least first and second different lengths. Staple material of preselected first or second lengths is fed from a supply of a continuous length of staple material and severed from the continuous length to form the staple blanks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.