Paper punching machine
US4833958A · kind A · utility
14Cited by
10References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1987 |
| Grant date | May 30, 1989 |
| Priority date | — |
| Expiry date | Dec 21, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/944
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A machine for punching holes in batches of sheets has a receptor which holds a stack of sheets in vertical position. A timing mechanism sequentially jogs and segregates a first batch from the receptor and deposits same in a vertical punch slot. At the bottom of the punch slot is a horizontally reciprocating punch which forms the holes. Meanwhile, a second batch is bieng jogged and segregated. The first and second batches are gripped and lifted. The first batch is deposited in a vertical discharge slot from which it is transferred to a deposit tray. The second batch is simultaneously punched while in the punch slot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.