Carbon dioxide cleaning system with specialized dispensing head
US11148252B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2019 |
| Grant date | Oct 19, 2021 |
| Priority date | — |
| Expiry date | Feb 11, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24C5/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A cleaning system that utilizes a dispensing head to spray carbon dioxide and a propellant against a surface. The carbon dioxide being propelled includes solid phase crystals. A supply line is used to feed the carbon dioxide to a dispensing head. Within the dispensing head, a first manifold chamber receives the carbon dioxide. A plurality of pathways link the first manifold chamber to a plurality of output nozzles. Each of the pathways contains an internal configuration that induces a formation of solid phase carbon dioxide crystals as the carbon dioxide from the supply line flows through the pathways toward the output nozzles. The propellant enters the dispensing head and flows into a second manifold chamber. The second manifold chamber has an exit opening near, or at, the output nozzles. As carbon dioxide, in both gas and solid phase, exits the output nozzles, it is accelerated by the propellant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.