Page turning device
US4644675A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 1985 |
| Grant date | Feb 24, 1987 |
| Priority date | — |
| Expiry date | Feb 11, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42D9/04
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A page turner device for an open book comprises a support for the book, and a power driven disc configured to rest on the top of the pages of such open book. When the power drive is energized, the disc will start to rotate while in contact with the open pages. The disc has a finger portion which protrudes outwardly from adjacent portions of the disc, and a page curler drive is used for creating a curl or arch in the center portions of an open page, so that when the finger rotates to the proper position, it will go into the recess under the curl, and as it continues to rotate, the finger will pull the page with it. When the disc comes to a rest position, the finger will have completely opened the subsequent page. At the rest position a cam operates a switch to disable the power drive until such time as the person reading again initiates a manual switch to commence the page turning sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.