Patent ID: 9596963
Date: 2017-03-21
CPC Classifications: A47K,B05B

Claim:
1. A refill unit for a soap, sanitizer or lotion comprising: a non-collapsing inverted container; the non-collapsing inverted container having a neck located at the bottom of the container; a pump secured to the neck; the pump having a housing; the housing having a cylindrical outside surface; the housing having an attachment mechanism for attaching the pump to a venting insert; the venting insert having a cylindrical inside surface and a cylindrical outside surface; at least a portion of the venting insert is located within the neck; air passage is located between the pump housing and the cylindrical inside surface of the venting insert; the venting insert includes one or more apertures therethrough; a one-way air inlet valve is located proximate the one or more apertures; the one-way air inlet valve opens when the vacuum pressure in the container exceeds the cracking pressure of the one-way air inlet valve to allow air to vent the container.