Dispensing cartridges having collapsible packages for use in caulking guns
US6464112B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2001 |
| Grant date | Oct 15, 2002 |
| Priority date | — |
| Expiry date | Jul 18, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05C17/0052
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A cartridge for use with a conventional caulking gun, the cartridge comprising a substantially rigid cartridge body having a cartridge nozzle end, a cartridge plunger end, and a cartridge nozzle edge. The cartridge also has at least one collapsible package that includes a package nozzle end, a package plunger end, a package nozzle end edge, and a package inside space where a package retaining collar has at least one inside perimeter edge that defines at least one collar passageway. The at least one collapsible package is disposed at least partially within the substantially rigid cartridge body such that the package plunger end is disposed towards the cartridge plunger end and the package opening is disposed towards the nozzle end opening and the nozzle end opening is sufficiently hermetically sealed to allow drawing a vacuum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.