[특허]Portafilter for espresso coffee machines

LA MARZOCCO, SRL

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Portafilter for espresso coffee machines

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A47J-031/06 A47J-031/44 A47J-031/46
출원번호	US-0503648 (2010-10-25)
등록번호	US-9402499 (2016-08-02)
우선권정보	IT-PO20090010 U (2009-10-23)
국제출원번호	PCT/IB2010/002720 (2010-10-25)
§371/§102 date	20120709 (20120709)
국제공개번호	WO2011/048485 (2011-04-28)
발명자 / 주소	Bambi, Piero Lorenzi, Paola
출원인 / 주소	LA MARZOCCO, SRL
대리인 / 주소	Hart IP Law & Strategies, LLC
인용정보	피인용 횟수 : 1 인용 특허 : 6

초록

In an improved filter holder for espresso coffee machines, the spout (22) is applied to the hollow upper member (10) of the filter holder by a snap fitting and the bottom (14) of the upper member (10) is provided on the outside of it with a relief shape (30), the edge (32) of which forms a stable supporting surface for pressing the ground coffee powder. The filter holder is made entirely of polished stainless steel.

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1. A filter holder for espresso coffee machines comprising: a substantially cylindrical, hollow upper member and a frustoconical lower member equipped with a spout, the cavities of the upper member and of the lower member being in communication with each other through a hole made in the bottom wall of the upper member,wherein the filter holder is comprised of the bottom wall of the upper member, at the hole, with a protrusion that is externally shaped in such a way as to form a male connector for a snap fitting with the lower member whose inlet is shaped to form a female connector,a relief shape on the bottom wall of the upper member, the edge of which forms a stable supporting surface, the relief shape is a curved continuous structure that comprises a first section, a central section, and a second section, the central section being disposed along a perimeter of the bottom wall of the upper member, the first section and the second section, each forming an arc that curves away from the perimeter and extends toward the center of the bottom wall, andwherein the spout extends in a downward direction a distance that is greater than the distance the relief shape extends in a downward direction from the bottom wall of the upper member. 2. The filter holder according to claim 1, characterized in that an O-ring seal is seated in a housing formed in the outside wall of the protrusion. 3. The filter holder according to claim 1 wherein a tooth is provided at the inlet of the lower member and wherein said matching slot is formed on the outside surface of the bottom of the upper member. 4. The filter holder according to claim 1 comprised entirely of polished stainless steel. 5. The filter holder according to claim 1, further comprising: a handle attached to a side of the substantially cylindrical, hollow upper member, to enable a person to grip the filter holder. 6. The filter holder of claim 5 wherein the handle is attached to the side of the substantially cylindrical, hollow upper member at a location that is substantially radially opposed to the relief shape. 7. A filter holder for espresso coffee machines, comprising: a substantially cylindrical, hollow upper member and a frustoconical lower member equipped with a spout and associated with the upper member, the cavities of the upper member and of the lower member being in communication with each other through a hole made in the bottom wall of the upper member,wherein the lower member is provided with a tooth extending in a nonparallel direction away from the hole of the upper member, wherein the tooth is designed to fit into a matching slot formed on the upper member so that rotation of the spout with respect to the upper member is prevented,wherein the filter holder is comprised of a relief shape on the bottom wall of the upper member, the edge of which forms a stable supporting surface, the relief shape is a curved continuous structure that comprises a first section, a central section, and a second section, the central section being disposed along a perimeter of the bottom wall of the upper member, the first section and the second section, each forming an arc that curves away from the perimeter and extends toward the tooth; andwherein the spout extends in a downward direction a distance that is greater than the distance the relief shape extends in a downward direction from the bottom wall of the upper member. 8. The filter holder according to claim 7, further comprising: a handle attached to a side of the substantially cylindrical, hollow upper member, to enable a person to grip the filter holder. 9. The filter holder of claim 8 wherein the handle is attached to the side of the substantially cylindrical, hollow upper member at a location that is substantially radially opposed to the relief shape. 10. A filter holder for espresso coffee machines, comprising; a substantially cylindrical, hollow upper member and a frustoconical lower member equipped with a spout, the cavities of the upper member and of the lower member being in communication with each other through a hole made in the bottom wall of the upper member,wherein the filter holder further comprises a relief shape projecting from the bottom wall of the upper member, wherein an edge of the relief shape forms a stable supporting surface, wherein the relief shape is a curved continuous structure that comprises a first section, a central section, and a second section, the central section being disposed along a perimeter of the bottom wall of the upper member, the first section and the second section, each forming an arc that curves away from the perimeter toward the center of the bottom wall, andwherein the spout extends in a downward direction a distance that is greater than the distance the relief shape extends in a downward direction from the bottom wall of the upper member. 11. The filter holder according to claim 10, further comprising: a handle attached to a side of the substantially cylindrical, hollow upper member, to enable a person to grip the filter holder. 12. The filter holder of claim 11 wherein the handle is attached to the side of the substantially cylindrical, hollow upper member at a location that is substantially radially opposed to the relief shape.

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이 특허를 인용한 특허 피인용횟수: 1

Grassia, Robert. Espresso machine with Americano feature. USP2018039924828.

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Portafilter for espresso coffee machines

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Portafilter for espresso coffee machines

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이 특허에 인용된 특허 (6)

이 특허를 인용한 특허 피인용횟수: 1

IPC 상위 출원인

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IPC 상세정보(version : 201201)

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