Injection molding tool and method
US11305308B2 · kind B2 · utility
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4Claims
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Assignee
Inventor
Key dates
| Filing date | Aug 3, 2016 |
| Grant date | Apr 19, 2022 |
| Priority date | — |
| Expiry date | Feb 10, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/338
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A piston for use in a cartridge for dispensing multi-part fluids, the piston being injection molded and having integrally formed circumferential seals, wherein the piston is molded in the absence of a longitudinal parting line across the seals. A tool for forming a piston having a plurality of circumferential seals for use in a cartridge for dispensing multi-part fluids, the tool comprising a plurality of segments together defining a piston cavity corresponding to an outer periphery of the piston.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.