Adjustable ascension pipe
A technology for adjusting the length and the head, which is applied in the field of rising pipes, can solve the problems of unclear adjustment, difficult to remove, difficult to ensure accurate adjustment of the rising pipes, etc., and achieves the effect of good grip and improved grip.
Inactive Publication Date: 2005-11-30
PI-DESIGN AG
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Problems solved by technology
Therefore, it is difficult in practice to ensure precise adjustment of the riser despite the scale due to the "chattering" nature of the adjustment movement
In addition, adjustments are obscured by the thickness of the calcareous layer that settles on the reference surface on top of the nose and is difficult to remove
In addition, the gasket is easily damaged during forceful operation, so it is no longer as effective as it was before, either as a seal or as a component that holds the riser in the set position
Method used
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[0034] FIG. 1 shows the upper container 1 of an embodiment of a device of the coffee / tea type with a main pipe 2 according to the invention. In this embodiment, a seal is provided between the upper container 1 of the device and the lower container, not shown, so that the main pipe 2 of the riser extends downwards when the device is in the assembled and ready-to-use state for brewing into an otherwise closed lower container with water. As mentioned above, the general brewing function of the device will not be described in detail here. It should however be noted that during the brewing procedure, the water is forced upwards through the riser into the upper vessel 1 due to the steam pressure caused by the heating until the water level in the lower vessel reaches the effective lower limit of the riser. Thereafter, most of the steam rises through the riser for the remainder of the heating process.
[0035] The main pipe 2 of the present invention is fixedly and closely connected ...
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Adjustable riser pipe to be used for instance in a coffee maker with two containers sealingly arranged relative to and above one another, said two containers being flow-connected through the adjustable riser pipe in such a manner that liquid water can be caused to leave the closed lower container and enter the upper container through said riser pipe by means of pressure resulting from a heating until the rising of liquid water is stopped because the water level reaches a limit level defined by a level set by the lower edge of the riser pipe. The Adjustable riser pipe ( 7 ) according to the invention is formed by a main pipe ( 2 ) and by a sleeve ( 6 ) being substantially sealingly and axially and axially and / or circumferentially displaceable about said main pipe. The main pipe ( 2 ) fixedly and tightly abuts a structure ( 4 ) in the upper container ( 1 ) at an unchangeable distance from said upper container and in a direction towards the lower edge ( 5 ) of the main pipe. The adjustable length of the riser pipe ( 7 ) and consequently the set limit for the rising liquid water from the lower container during the brewing procedure are defined by the instantaneous maximum level of the lower edge ( 8 ) of the sleeve ( 6 ). The advantages are an easy setting by one hand and a high tolerance towards lime deposits.
Description
technical field [0001] The invention relates to an adjustable riser in a device for brewing coffee, tea or similar beverages as stated in the preamble of claim 1 . [0002] The device comprises two containers arranged hermetically above and below one another, said two containers being connected in fluid communication by means of an adjustable riser through which liquid water can be caused to exit closed by means of pressure caused by heat The lower container enters the upper container until the rise of liquid water stops because the water level reaches a limit water level defined by the water level set by the lower edge of the riser pipe or according to a set of marked points. [0003] Since the general principles of operation of such a device are well known to those skilled in the art, this description does not contain further explanations. Background technique [0004] EP-A1-0.292.649 discloses a device of the above type comprising an adjustable riser. Here the shape of ...
Claims
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IPC IPC(8): A47J31/053
CPCA47J31/053
Inventor 卡斯滕·约恩森
Owner PI-DESIGN AG