Binding strips for rectangular hole punched paper
US4620724A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1985 |
| Grant date | Nov 4, 1986 |
| Priority date | — |
| Expiry date | Dec 23, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42B5/08
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Heretofore, there have been two common systems of strip binding. One uses paper punched with rectangular holes and curled plastic combs having fingers passing through the holes. The other uses round holes in the paper and male and female strips, the studs of the male strips fitting through the holes in the paper and in the female strips. Excess stud length is cut off and rivet heads formed to make a permanent bind. The present invention uses rectangular punched paper similar to the first systems and strips generally similar to the second system. At least two studs and female strip holes are offset to prevent lateral displacement of the paper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.