Replacement valve design

The replacement coffee dispensing pump (see this item) also had to be:

  • ultra-cheap as an injection moulding,
  • highly accurate in terms of dispense volume,
  • disposable,
  • eligible to be patented, and
  • capable of automated assembly.

The answer was yes.

Here is my design for a replacement device which was compatible mechanically and electrically with the existing system installed throughout the US.