Hopper and feed for plastic book-binding strips
US5462196A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 3, 1994 |
| Grant date | Oct 31, 1995 |
| Priority date | — |
| Expiry date | May 3, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42B5/08
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Plastic binding strips used with this invention comprise a female strip consisting of a narrow, thin plastic strip formed with spaced apertures and grooves communicating with the apertures and a male strip comprising a narrow plastic strip having bendable studs projecting at fight angles therefrom spaced to fit through holes in the pages to be bound and the apertures in the female strip. Such strips are packaged in cassettes. The hopper for the female strips receives a stack of cassettes. Strips are fed from the lowermost cassette by a horizontally reciprocating finger onto a transverse ways and then feed along the ways to an assembly station. When the lowermost cassette is empty, its support is removed and the next cassette is moved into place. The male hopper is similar to the female except that the studs require greater spacing between cassettes and provision is made in the feed structures for the upward projection of the studs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.