METHOD OF PRODUCING A VALVE CUP FOR A PRESSURISED AEROSOL DISPENSER,申请号GB19790006127-传众专利搜索

METHOD OF PRODUCING A VALVE CUP FOR A PRESSURISED AEROSOL DISPENSER

申请公布号：GB1564997(A)

申请号：GB19790006127

申请日期：1977.11.24

申请公布日期：1980.04.16

申请人：

RISDON MFG CO

分类号：B29C45/44;B29C65/58;B29D23/20;B65D83/14;(IPC1-7):B65D83/14

主分类号：B29C45/44

摘要：AEROSOL CONTAINER CONSTRUCTIONS AND PRODUCTION METHODS Aerosol container constructions include a container body which defines a product receiving chamber having an open mouth. The container body is formed with a conical sealing surface about the mouth, inclined upwardly and outwardly from the product receiving chamber, and a catch surface associated with the mouth. A valve cup, which houses a dispenser valve for dispensing a product stored in the container, is mounted in the container body mouth and is formed with a dispenser valve mounting portion, a skirt depending from the valve mounting portion and having a conical sealing surface shaped and sized to mate with the conical container body sealing surface, and a latch surface positioned to engage the catch surface when the valve cup and container body are assembled. The valve cup is produced in a mold assembly including a one-piece mold member, configured to the external shape of the valve cup conical sealing surface, and a cooperating core member configured to the external cup shape. When finished, the valve cup is pushed axially through the mold cavity to strip it from the one-piece mold member. This valve cup design and construction permits formation of the cup's conical sealing surface without mold parting line protrusions which often cause leakage problems in conventional container constructions.