JOHN C CHENG
Pilots at Vetrina, Irvine, CA
License number
California A2808653
Issued Date
Mar 2015
Expiration Date
Mar 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
2 Vetrina, Irvine, CA 92606
Professional information
Cup And Filter Combination
US Patent:
2005027, Dec 22, 2005
Filed:
Jun 18, 2004
Appl. No.:
10/870861
Inventors:
John Cheng - Irvine CA, US
International Classification:
A23F003/00
US Classification:
099323000
Abstract:
The present invention provides a cup and filter combination comprising a foldable filter inside the cup. The combination further comprises a foldable retaining ring for holding the filter within the cup. The foldable retaining ring is attached to the filter along the outer edge of the filter and is attached to the inner wall of the cup to hold the filter within the cup. In a folded configuration, the retaining ring and the filter are folded inside the cup. In an open configuration, the retaining ring is pulled open from its folded configuration. In this configuration, the retaining ring has a ring shape that runs along the inner circumference of cup and the filter is opened up to receive tealeaves or coffee grounds to be brewed and filtered. The invention is not limited to brewed beverages and can also be used to filter particulate matter from a liquid.