Froth wand for espresso maker

摘要

The present invention is a froth wand for an espresso machine that can generate a high velocity stream of steam to foam a beverage at the beverage brewing apparatus. The wand includes an adapter for attaching to the beverage brewing machine at a steam supply outlet, and a conduit for communicating the steam to a steam tube. The steam tube has a cylindrical body with an annular recessed exit, and is surrounded by a cylindrical sheath. The sheath includes a cylindrical plug with a small longitudinal aperture that fits into the outlet of the steam tube. The mating of the sheath's plug and the steam tube forces the steam through the aperture, accelerating the steam at the exit.

主权项

1. A froth wand for a beverage brewing apparatus, comprising:
a coupling that connects the froth wand to a steam supply of the beverage brewing apparatus; a conduit for communicating steam received at the coupling; a hollow steam tube connected to the conduit, the steam tube including projections along an outer surface and an annular recess as an exit; and a sheath releasably disposed over the steam tube and engaged with the projections to secure the sheath thereon, the sheath further comprising a cylindrical hub at a distal end that engages the annular recess of the steam tube to provide a mating engagement therebetween, the cylindrical hub including an aperture having a diameter that is smaller than a diameter of the exit of the steam tube such that steam transitioning from the steam tube to the cylindrical hub of the sheath is accelerated.