EP1537916A1 — Multiple liquid foamer
Assigned to Rieke LLC · Expires 2005-06-08 · 21y expired
What this patent protects
A multiple liquid foamer (30) includes a foamer pump (33) that defines a pump chamber (143). The foamer pump (33) includes a plunger received in the pump chamber (143) to pump a gas. A first liquid pump is coupled to the plunger to pump a first liquid in unison with the plunger. …
USPTO Abstract
A multiple liquid foamer (30) includes a foamer pump (33) that defines a pump chamber (143). The foamer pump (33) includes a plunger received in the pump chamber (143) to pump a gas. A first liquid pump is coupled to the plunger to pump a first liquid in unison with the plunger. A second liquid pump is coupled to the plunger to pump a second liquid in unison with the plunger. The foamer pump (33) defines a liquid passage that is fluidly coupled to the first liquid pump and the second liquid pump. The liquid passage is configured to mix the first liquid from the first liquid pump and the second liquid from the second liquid pump to form a mixed liquid. The foamer pump (33) defines a gas passage in which the gas from the pump chamber (143) is pumped. The gas passage intersects the liquid passage to create foam with the mixed liquid and the gas.
Drugs covered by this patent
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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