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公开(公告)号：US4872402A
公开(公告)日：1989-10-10
申请号：US216410
申请日：1988-07-06
IPC分类号： A47J31/057 , A47J31/54
CPC分类号： A47J31/0573 , A47J31/545
摘要： A coffee brewing unit is disclosed which enables a brew cycle to be initiated automatically upon insertion of a coffee receiving vessel into its coffee receiving position, but which prevents a brew cycle from proceeding if a number of required operating conditions are not implemented. If all operating conditions again become implemented after a brew cycle, once underway, is interrupted, the brew cycle continues on to completion. Visual signals indicate that a brew cycle is in progress and also when sufficient mineral deposits are present that cleaning of the unit is recommended. An insulated carafe is used as the vessel to receive brewed coffee thereby eliminating the need for a warmer plate. The unit may be mounted under a cabinet to thereby maximize usable countertop space and a coffee basket for the unit utilizes a dispensing valve which is opened by the carafe when inserted into position but which closes when the carafe is withdrawn. A thermostat which is used in association with the water generator for the unit has a manual reset switch which is actuated by a self contained water reservoir when moved into its operating position.
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公开(公告)号：US4838152A
公开(公告)日：1989-06-13
申请号：US222195
申请日：1988-07-21
IPC分类号： A47J31/057 , A47J31/54 , A47J31/56 , A47J31/58
CPC分类号： A47J31/545 , A47J31/0573 , A47J31/56 , A47J31/58
摘要： A coffee brewing machine utilizes an insulated carafe to receive the brewed coffee and automatically turns itself off a short time after completion of a brew cycle. The machine also turns off automatically a specified time after a brew cycle is initiated when calcification is so extreme that flow of water through the unit is totally prevented. Additionally, as a safety feature, the system also turns off automatically in the case of a "dry run", that is, a short specified time after accidental energization when no water is in the reservoir. A lamp is lighted when a brew cycle is in progress but is extinguished at other times.
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公开(公告)号：US4827837A
公开(公告)日：1989-05-09
申请号：US216706
申请日：1988-07-07
IPC分类号： A47J31/057 , A47J31/54
CPC分类号： A47J31/0573 , A47J31/545
摘要： For a coffee brewing machine, an indicating system which operates to notify the user when it is time to clean the water supply conduit of accumulated mineral deposits. When a self contained removable reservoir is inserted into its operative position connecting to the water supply conduit, it closes the contacts of a temperature sensitive switch. During normal operation, the switch opens when water is depleted from the reservoir and the brewing cycle is completed. However, if the switch opens while water remains in the supply conduit upstream of the heater mechanism, this is a sure indication that there is a substantial accumulation of mineral deposits in the supply conduit. Thus, a sensing mechanism is employed to detect the presence of water in the supply conduit after the temperature sensitive switch opens, and a lamp is energized to indicate the condition. In one embodiment, the sensing operation is performed by an electromechanical device, and in another embodiment by logic circuitry.
摘要翻译： 一种用于咖啡冲泡机的指示系统，其操作以在何时清洁累积矿床的供水管道时通知用户。 当自包含的可移动储存器插入到连接到供水管道的操作位置时，它关闭温度敏感开关的触点。 在正常操作期间，当水从储存器中耗尽并且酿造循环完成时，开关打开。 然而，如果在加热器机构上游的供水管路中保持水而开关打开，则这确实表明矿物沉积物在供应管道中存在大量积聚。 因此，在温度敏感开关打开之后，使用感测机构来检测供应管道中的水的存在，并且通电灯来指示状况。 在一个实施例中，感测操作由机电装置执行，在另一实施例中由逻辑电路执行。
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