Coffee filter
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
May 18, 2006
app pub date -
Nov 16, 2005
filing date -
Nov 16, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A coffee filter includes a filter bowl, a handle and a control valve, wherein the valve needle of the control valve is fitted below the valve opening of the filter bowl. The valve needle is sleeved with a return spring that exerts an upward force to the valve needle, so that its top butts against the valve opening. A pivotal drive rod is hinged onto the handle to exert a downward force to the valve needle, so that its top is disposed from the valve opening.
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Family
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