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    • 3. 发明公开
    • VORRICHTUNG ZUM STANZEN, PRÄGEN UND/ODER VERFORMEN FLACHER ELEMENTE
    • DEVICE冲压,冲压和/或变形的扁平元件
    • EP1554109A2
    • 2005-07-20
    • EP03753543.2
    • 2003-10-11
    • Tetra Laval Holdings & Finance S.A.
    • MARTIN, Peter-JosefPOLSTER, SteffenGROSSMANN, Hans
    • B30B1/16B30B1/26B30B1/10B26D5/16B26D5/18B26D5/14B26F1/08
    • B26D5/14B26D5/16B26D5/18B26F1/08B30B1/14B30B1/16B30B1/261
    • The invention relates to a device for punching, stamping and/or shaping flat elements (29), comprising a base body (1) with a table (18) and support (26) for the flat element (29), and comprising a base plate (17), which supports a punch (24) and which, in order to carry out the working process, can be advanced with the aid of a drive (4, 5) toward the support (26) and into a working station (II) whereby bringing the punch (24) into contact with the support (26) and can be moved away therefrom. The aim of the invention is to create a device of the aforementioned type with which a large number of very short and highly precise punching strokes can be executed in succession in order to make punched holes or stampings and, in particular, short stop periods and thus short clock times, in fact, the shortest possible working strokes, can be achieved in the event of fast moving flat elements. To this end, the invention provides that transfer means (9, 7; 35; 43; 46) are coupled between the drive (4, 5) and the base plate (17). These transfer means move the base plate (17) essentially without building up any pressure from a position of rest (I), in which the punch (24) is not in contact with the support (26), up to immediately in front of working position (II), then they move the base plate into working position (II) along a short distance while producing a high pressure between the base plate (17) and the flat element (29). During further operation of the drive (4, 5) over areas, the base plate (17) is returned to the position of rest (I, III) in the opposite direction of movement essentially without building up any pressure.
    • 5. 发明公开
    • SCHRAUBKAPPE F R UNTER DRUCK STEHENDE BEH LTER
    • 螺丝用于压力容器船
    • EP1545998A1
    • 2005-06-29
    • EP03770880.7
    • 2003-09-24
    • BERICAP GmbH & CO. KG
    • GASSNER, Okten
    • B65D41/04
    • B65D41/0421
    • The invention relates to a screw cap for containers with a threaded neck, in particular PET bottles designed to hold beverages containing CO2. Said cap comprises a top plate (1), an approximately cylindrical cap jacket (2), provided with an interior thread (3), an approximately cylindrical inner sealing collar (4), emanating from the top plate (1) and having an annular continuous region that projects radially outwards and an essentially cylindrical outer sealing collar (5), which concentrically surrounds the inner sealing collar (4). The maximum outer radius of the inner sealing collar and the minimum inner radius of the outer sealing collar differ only slightly, preferably by less than 2 mm and in particular by less than 1 mm and the inner and outer sealing collars (4, 5) are designed to receive the upper region of a bottle neck (11) in the annular gap formed between said collars. The aim of the invention is to provide a screw cap, which in general retains the excellent sealing properties of the known screw cap, even in extreme environmental conditions and is at the same time capable of limiting the pressures that occur in a container with a screw cap, without losing its sealing function. To achieve this, the cap is provided with devices (6, 7), which limit the axial depth of penetration of the edge of a bottle neck (11) into the gap between the inner (4) and the outer sealing collar (5).