Patent · US Active

Cold gas spray gun

US7637441B2 · kind B2 · utility

9Cited by

1References

14Claims

0Family size

Assignee

Linde GmbH · DE

Inventors

Peter Heinrich · Oberhausen, DE
Heinrich Kreye · Hamburg, DE
Tobias Schmidt · Munich, DE
Peter Richter · Heldenstein, DE

Key dates

Filing date	Jun 29, 2006
Grant date	Dec 29, 2009
Priority date	—
Expiry date	Sep 18, 2027

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB05B7/1626
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A cold gas spray gun is disclosed. The spray gun includes a high-pressure gas heater which has a pressure vessel through which gas flows and a heating element situated in the pressure vessel, as well as a mixing chamber in which particles can be admixed with the gas through a particle feed. A Laval nozzle is arranged downstream in the direction of flow of the gas and consists of a convergent section, a nozzle throat and a divergent section. The high-pressure gas heater and/or the mixing chamber is/are at least partially insulated on the inside in the areas of contact with the gas.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.