Device for applying a viscous sealant in annular form onto a substantially flat surface, specifically to a can end
US4842469A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 16, 1987 |
| Grant date | Jun 27, 1989 |
| Priority date | — |
| Expiry date | Nov 16, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/565
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A device for applying a viscous sealant (D) in annular form onto a substantially flat surface, specifically on to a can end (14) is provided with an approximately horizontal annular transfer surface (2a, 3a) provided at the free upper end of a material transfer head (1). A pass (4) opening towards the transfer surface (2a, 3a) is provided in the material transfer head (1) and is fed with sealant from a continuously operating pump device (P1). An open-top interior (8) surrounded by the transfer surface (2a, 3a) and provided in the material transfer head (1), which is connected to a backflow pipe (9) for excess sealant, is, in addition, permanently connected to a vacuum source (P2). Further, a transfer device (18) is provided by which the can end (14) is vertically movable in relation to the transfer surface (2a, 3a). (FIG. 1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.