|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||99/295 ; 99/302R|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 81 인용 특허 : 0|
Devices for use in a water injection coffee extraction machine are in a form of a hollowed ring which may be fixed about the base of the extraction head of the coffee machine, and a grill or other member, which allows passage of extraction water therethrough, is positioned transversely within the interior of the ring so that upon fitting the ring about the extraction head base, the grill or other member is positioned adjacent the base of the extraction head. The grill may have projections which extend in a direction away from the extraction head, and the...
A fixing ring device for use with a water injection coffee extraction apparatus of the type having an extraction head and a tightening ring disposed about the extraction head, wherein the extraction head has a base, a water injection system opening in the base, a peripheral portion which extends longitudinally from the base, a surface portion which extends laterally from the peripheral portion, and a seal positioned adjacent the surface portion and wherein the tightening ring is fitted to the head and has a portion which extends coaxially about and which...