Bayer Aktiengesellschaft

Fritsche Mollmann Gmbh & Co.

Fritsche-mollmann Gmbh

Volker Onnenberg

Gunter Mollmann

Ralf Busch

Klaus Schulte

Wilfried Ebeling

Alberto C Gonzalez-Dorner

Hansjurgen Rabe

John J Lindsey

Bernd Lehmann

A vacuum mold and process for manufacturing a textile-covered cushion. The process broadly comprises back foaming, wherein (i) the cover is placed on the edge of a vacuum molding part at least partly containing a mold cavity and is stretched before a vacuum is applied to the mold cavity, (ii) the cover is sucked into position, (iii) a foamable reaction mixture is then applied to the back of the cover and (iv) when the reaction mixture has set to form the foam core, the cushion is removed from the mold, the improvement wherein prior to the application of the vacuum to the mold cavity, the cover is brought into contact with at least one moveable section of the wall of the mold cavity as it is positioned over the mold cavity, the cover is fixed to this section and the section together with the cover fixed thereto is then moved into the molding position.

Process and vacuum mold for the manufacture of a textile covered cushion

The present invention is directed to a device for manufacturing foam cushions with coverings. The device broadly includes:

Device for manufacturing foam cushions with a covering

The present invention relates to an apparatus for the production of back-foamed products. The apparatus broadly consists of two mold halves, a stretching frame attached to one of the mold halves, and a pulsator device for applying pulsations to the edge region of the mold cavity.

Apparatus for the production of upholstery with backfoamed covers, in

A process for the production of foam cushions having textile covers by inserting a textile cover into a mold cavity having gates which project into the mold cavity, initially preforming the textile cover by applying a vacuum through holes in the mold cavity such that the textile cover conforms to the contour on both sides of the gates, clamping the textile cover against the gates, optionally further positioning the textile cover such that it conforms to the contours of both the gates and the mold cavity, releasing the clamps and introducing a foam-forming reaction mixture into the mold cavity. The present invention is also directed to a form tool having gates, means for applying a vacuum through holes in the mold cavity in gates and clamping means for clamping the mold cover to the gates.

Process for the production of cushions made of foam which are provided

The invention relates to a vacuum mold for manufacturing cushions with back-foamed covers, wherein a section of cover material is stretched across a mold cavity, held down at the rim of the cavity, but allowed to slide into the mold cavity under the influence of a vacuum. The cover is also placed against and fitted to contourings (ridges and/or grooves) of the mold cavity, and subsequently back-foamed. The resulting flexible foam core is allowed to harden and the finished cushion is removed from the form.

Vacuum mold for manufacturing cushions with back-foamed covers

The present invention is directed to an apparatus for the production of foam cushions having textile covers by inserting a textile cover into a mold cavity having gates which project into the mold cavity, initially preforming the textile cover by applying a vacuum through holes in the mold cavity such that the textile cover conforms to the contour on both sides of the gates, clamping the textile cover against the gates, further positioning the textile cover such that it conforms to the contours of both the gates and the mold cavity, releasing the clamps and introducing a foam-forming reaction mixture into the mold cavity. The present invention is also directed to a form tool having gates, means for applying a vacuum through holes in the mold cavity in gates and clamping means for clamping the mold cover to the gates.

Process and a form tool for the production of cushions made of foam

The present invention is directed to an apparatus for the production of foam cushions having a textile cover in which the cover is inserted into a mold cavity and adapted to the contour of the mold cavity by the application of a vacuum wherein movable gates assist in improving the adaptation of the cover to the contour of the mold cavity.

Apparatus for the production of expanded cushions with a textile cover

The present invention is directed to an apparatus for the production of back-foamed cushions from cover materials and foam comprising:

Apparatus for the production of cushions with back-foamed covers

The present invention is directed to an apparatus for the production of back-foamed cushions from cover materials and foam, comprising:

Apparatus for the production of back-foamed cushions

The present invention is directed to an apparatus for the production of back-foamed covers from cover materials and foam comprising

Apparatus for the production of upholstery with back-foamed covers

A method for the continuous production of foam blocks or foam sandwich panels involving the application of the liquid foamable reaction mixture to the continuously moving shaping support in a manner which avoids large gas inclusions in the final product produced. The liquid foamable reaction mixture is preliminarily distributed by the use of a particular distributor channel means in a traverse direction to the continuously moving shaping support, permitted to flow in the form of a descending film exposed to the atmosphere to an intermediate storage means and then conveyed to said continuously moving shaping support. The distributor channel means may also be pivoted to control the outflow of the mixture.

Process for applying a layer of a liquid foamable reaction mixture to a

The instant invention relates to a process and an apparatus for applying a layer of liquid, foamable reaction mixture to a continuously moving support, such as for the production of foam blocks or foam sandwich panels having a thick foam core.

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Wiehl, Germany

Volker Onnenberg