Printing apparatus
US4228736A · kind A · utility
Inventor
Key dates
| Filing date | Jul 28, 1978 |
| Grant date | Oct 21, 1980 |
| Priority date | — |
| Expiry date | Jul 28, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63H33/3083
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A printing apparatus has a holder which incorporates a permanent magnet and has a printing element or elements containing magnetically soft material. In use a printing element is held against a thin positioning portion by the attraction of the permanent magnet. To engage a printing element the printing element is placed in contact with the positioning portion and the permanent magnet is brought up to the positioning portion. To release a printing element the permanent magnet is moved away from the positioning portion. Printing elements may be aligned printing-face down in an aligning member. The printing elements have depicted on the face opposite the printing surface the character on the printing surface. In one version a printing apparatus is used as a hand-stamp, and in another version a printing apparatus is inked and used by hand-rolling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.