Mixing device with a pressure holding device

Patent metadata

Field	Value
Publication number	US-11897168-B2
Application number	US-201615735408-A
Country	US
Kind code	B2
Filing date	Jun 24, 2016
Priority date	Jul 3, 2015
Publication date	Feb 13, 2024
Grant date	Feb 13, 2024

Abstract

The invention relates to a mixing device comprising at least one supply opening for at least one liquid and comprising at least one additional supply opening for at least one liquid curing or crosslinking agent. The liquid and/or the liquid curing or crosslinking agent is/are mixed with a gas. The mixing device also comprises a discharge opening for discharging a mixture, which can be produced in the mixing device, of the at least one liquid and the at least one liquid curing or crosslinking agent. A pressure holding device is provided for holding a specifiable pressure which is higher than the pressure at which the gas in the mixing device is foamed.

First claim

The invention claimed is:

1. A mixing device comprising:
at least one feed opening for at least one liquid;
at least one further feed opening for at least one liquid curing or cross-linking agent, wherein the at least one liquid and/or the at least one liquid curing or cross-linking agent is or are mixed with a gas;
a discharge opening for discharge of a mixture which can be produced in the mixing device and comprises the at least one liquid and the at least one liquid curing or cross-linking agent; and
a pressure holding device for holding a predeterminable pressure which is greater than a pressure at which foaming-out of the gas in the mixing device occurs,
wherein the pressure holding device includes an adjusting member arranged displaceably in the mixing device relative to the discharge opening, the adjusting member being configured to adjust a gap remaining between the adjusting member and the discharge opening, wherein the mixing device has a rotating agitator for mixing the at least one liquid and the at least one liquid curing or cross-linking agent, wherein the adjusting member is biased in a direction of the discharge opening by a force storage member, and wherein the agitator is adapted to be displaceable and forms the adjusting member, and

wherein the force storage member is in the form of a spring.

2. A mixing device comprising:
at least one feed opening for at least one liquid;
at least one further feed opening for at least one liquid curing or cross-linking agent, wherein the at least one liquid and/or the at least one liquid curing or cross-linking agent is or are mixed with a gas;
a discharge opening for discharge of a mixture which can be produced in the mixing device and comprises the at least one liquid and the at least one liquid curing or cross-linking agent; and
a pressure holding device for holding a predeterminable pressure which is greater than a pressure at which foaming-out of the gas in the mixing device occurs, wherein the pressure holding device includes an adjusting member arranged displaceably in the mixing device relative to the discharge opening, the adjusting member being configured to adjust a gap remaining between the adjusting member and the discharge opening, wherein the mixing device has a rotating agitator for mixing the at least one liquid and the at least one liquid curing or cross-linking agent, wherein the adjusting member is biased in a direction of the discharge opening by a force storage member, and wherein the agitator is adapted to be displaceable and forms the adjusting member,
wherein the mixing device further comprises a mixing chamber, the mixing chamber having the discharge opening, the agitator being arranged within the mixing chamber, and
wherein the agitator is configured to be displaced by a force of the at least one liquid and the at least one liquid curing or cross-linking agent in the mixing chamber applied directly to the agitator in a direction away from the discharge opening such that the force directly displaces the agitator away from the discharge opening so as to allow the mixture to be discharged through the discharge opening, and such that the force directly determines a size of the gap.

Assignees

• Henkel Ag & Co Kgaa

Inventors

• Schwabl Christian
• Baldauf Guenther
• Metzler Mario

Classifications

• B29B7/76

  {Mixers} with stream-impingement mixing head · CPC title

• B29B7/74

  using other mixers or combinations of {mixers, e.g. of} dissimilar mixers {; Plant} · CPC title

• B29B7/72

  Measuring, controlling or regulating · CPC title

• B29B7/7657 Primary

  Adjustable discharge orifices, openings or nozzle openings, e.g. for controlling the rate of dispensing · CPC title

• B29B7/407 Primary

  with a casing closely surrounding the rotor, e.g. with conical rotor · CPC title