Method of dispensing material from a bag using a segmented piston
US8950627B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2013 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Apr 5, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F11/026
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A material dispensing assembly (100) and method of operation for converting a portable cartridge dispensing tool to a bag-type dispensing tool is provided in which the assembly includes a single piece piston (110) for advancing material though a material housing (104). The single piece piston (110) includes a substantially square-shaped receptacle (140). The assembly further includes a square shaped drive rack (112) for attaching to the piston (110) at the substantially square-shaped receptacle (140) at a connection end (128). The drive rack (112) further includes a plurality of teeth (142) located thereon. The assembly (100) further has a support (127) with a substantially square profile for receiving and supporting the drive rack (112) during operation such that the construct of the drive rack and piston (110) are prevented from rotating during operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.