Method and device for applying an adhesive to a product surface
US6170759A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 31, 1999 |
| Grant date | Jan 9, 2001 |
| Priority date | — |
| Expiry date | Aug 31, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05C5/001
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The invention relates to a method and a device for the delivery of adhesives, in particular for the delivery of hot melt adhesives in the form of a thin stream of adhesive spray directed onto the product surface and acted upon by at least one air jet. A spray head (40) is arranged at the one end of the device (45), which comprises a connecting housing (25) for receiving a insertion element (30), provided with an outlet opening (34) for the thin stream of adhesive spray (glue) and embodied as a nozzle conduit, a guide sleeve (35), designed for the coaxial seating of the piston rod (43), as well as a nozzle body (15) with bores (20) arranged in the circumferential direction distributed in respect to each other, in which an air nozzle (10) with an interior chamber, which is embodied to be convergent-divergent in the flow-through direction, is respectively arranged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.