Back to results
US 9,301,637 B2Granted
Tamping augur
AssigneeBreville Pty Limited
InventorsRichard Hoare, Robert Grassia
Life of this patent
Estimating the term…
Abstract
A compacting auger for ground coffee has an automatic cut off that responds to either timing signals or to the torque resistance to the augur offered by the coffee that has been compacted. The automation of the cut off increases the consistency of compaction and reduces the amount of skill required to compact ground coffee for making espresso.
Claims20
A motorised automatic compaction augur device for the compaction of coffee grounds, comprising:
- a mechanism for indicating when the compaction is complete;
- an electric auger motor driving a first shaft, the first shaft connected to a second shaft by a coupling;
- the second shaft having at a lower end, an auger head;
- and
- wherein relative angular displacement between the first shaft and the second shaft causing the activation of the mechanism to indicate that compaction is complete.
2 more elements
Dependencies are inferred from the claim text.