Apparatus for the production of cushions with back-foamed covers
CA 1288935 C · Owner: Mollmann, Gunter · Inventors: Onnenberg, Volker; Mollmann, Gunter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to an apparatus for the production of back-foamed cushions from cover materials and foam comprising:, (i) a mold comprising an upper mold half and a lower mold half, said lower mold half defining a cavity, the inside surface of which is capable of being covered by said cover material, (ii) a mix head associated with said mold said mix head capable of introducing foam materials and/or reactants into said mold cavity, and, (iii) at least one pressing element for pressing said cover material into said mold cavity, said pressing element having a pressing edge which consists of at, least one balanced spring.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted September 17, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 17, 2008.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.