US 12,257,756 B2
Method for producing a clinical waste container by injection moulding with a heated nozzle
Peter Wall, Eskilstuna (SE)
Assigned to FrostPharma AB, Danderyd (SE)
Appl. No. 18/707,179
Filed by FrostPharma AB, Eskilstuna (SE)
PCT Filed Nov. 7, 2022, PCT No. PCT/SE2022/051031
§ 371(c)(1), (2) Date May 3, 2024,
PCT Pub. No. WO2023/080835, PCT Pub. Date May 11, 2023.
Claims priority of application No. 2151368-4 (SE), filed on Nov. 8, 2021.
Prior Publication US 2024/0335990 A1, Oct. 10, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. B29C 45/73 (2006.01); A61B 50/00 (2016.01); A61B 50/36 (2016.01); B29C 45/00 (2006.01); B29C 45/74 (2006.01); B29K 311/14 (2006.01); B29L 31/00 (2006.01); B29L 31/56 (2006.01)
CPC B29C 45/73 (2013.01) [B29C 45/0001 (2013.01); B29C 45/0005 (2013.01); B29C 45/74 (2013.01); A61B 2050/0083 (2016.02); A61B 50/362 (2016.02); A61B 2050/364 (2016.02); B29K 2311/14 (2013.01); B29K 2905/12 (2013.01); B29K 2995/007 (2013.01); B29K 2995/0097 (2013.01); B29L 2031/565 (2013.01); B29L 2031/712 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for producing a clinical waste container, the clinical waste container being associated, in an upright operating orientation of the clinical waste container, with an upwards axial direction, an outwards radial direction and an angular direction, the clinical waste container comprising
a lower basket part, having an upper basket opening; and
an upper lid part, arranged to be fastened to the basket part so as to cover the basket opening, the lid part comprising a cylindrical part having an upper lid opening arranged to receive clinical waste through the lid opening into the basket part,
wherein the method comprises
providing a metal mold and a heated nozzle;
injecting molten plastic material comprising at least 30% by volume wooden fibers via the heated nozzle into the mold;
allowing the plastic material to harden by cooling to form the lid part;
removing the lid part from the mold; and
providing the basket part, wherein
the mold and the heated nozzle are made from a stainless steel material comprising at least 12% chromium and is hardened to at least 50 HRC (Rockwell scale).