Device for squeezing flowable material out of a tubular bag
AssigneeWolfgang Muhlbauer
InventorErnst Mühlbauer
Life of this patent
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Abstract
The inventive device for squeezing flowable material includes a tubular bag containing the material, as well as an injection device . The tubular bag is inserted into a cylindrical chamber of the ejection device. Its open end is located inside an outflow opening of said device. The tubular bag is clamped to the fore-part with a sealing washer, the clamping member of which cooperates exclusively with the outflow opening edge formed by the fore-part.
Claims16
Arrangement for squeezing out a free-flowing substance, comprising an elongated tubular bag (1), which contains the substance and has, at least at one end, an opening (8) surrounded by a shoulder (12) of the tubular bag (1) and by a sealing ring (13) connected to the shoulder (12) and having or forming at least one sealing element (15, 22, 45), and a squeezing-out device (2, 5), which has a cylinder space (10), which accommodates the tubular bag, receives a pressure piston (5) at one end and contains a discharge opening (9) at the other end, the discharge opening (9) interacting with the bag opening (8) and being surrounded by an end face (11) lying opposite the shoulder (12) of the tubular bag (1) and the sealing ring (13), characterized in that the sealing element (15, 22, 45) of the sealing ring interacts solely with the end face (11) surrounding the discharge opening (9), namely with that edge of the discharge opening which is formed by this end face (11).
Arrangement for squeezing out a free-flowing substance, comprising an elongated tubular bag (1), which contains the substance and has, at least at one end, an opening (8) surrounded by an end face (12) of the tubular bag (1) and by a sealing ring (13) connected to the end face (12) and having or forming at least one sealing element (45), and a squeezing-out device (2, 5), which has a cylinder space (10), which accommodates the tubular bag, receives a pressure piston (5) at one end and contains a discharge opening (9) at the other end, the discharge opening (9) interacting with the bag opening (8) and having a sealing surface (43) interacting with the surface of the sealing ring (13), characterized in that the sealing-ring surface and the sealing surface (43) are spherical.
Arrangement for squeezing out a free-flowing substance, comprising an elongated tubular bag (1), which contains the substance and has, at least at one end, an opening (8) surrounded by an end face (12) of the tubular bag (1) and by a sealing ring (13) connected to the end face (12) and having or forming at least one sealing element (45), and a squeezing-out device (2, 5), which has a cylinder space (10), which accommodates the tubular bag, receives a pressure piston (5) at one end and contains a discharge opening (9) interacting with the bag opening (8) and having a sealing surface (43) interacting with the surface of the sealing ring (13), characterized in that the sealing-ring surface or the sealing surface (43) is spherical.
Dependencies are inferred from the claim text.