Page-turners
US4031644A · kind A · utility
13Cited by
4References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 12, 1976 |
| Grant date | Jun 28, 1977 |
| Priority date | — |
| Expiry date | Apr 12, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42D9/04
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Apparatus enabling the pages of a book to be turned by remote control comprises a book-support with a reversible electric motor on it. An output shaft of the motor extends across the book and the motor is pivotally mounted for swinging the shaft both across and perpendicular to the book through limited angles. A friction wheel is on the shaft for rolling across the pages of the book and a radial finger adjacent the friction wheel is coupled to the shaft through a slipping clutch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.