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OwnerRolf Gurrinventor
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A cooling device for liquid cooling of thermoplastics extrusions in an enclosed calibrating chamber comprises a plurality of liquid jets for spraying liquid into the calibrating chamber, a liquid receptacle for positioning beneath the calibrating chamber for receiving liquid sprayed into the calibrating chamber by the liquid jets, a pump for supplying liquid from the liquid receptacle to the liquid jets and monitoring devices for controlling the pump to maintain a liquid level selectively within the liquid receptacle or above the level of the liquid jets in the calibrating chamber. The invention also includes a calibrating device for calibrating thermoplastics extrusions and incorporating a cooling device as above mentioned.
A cooling device for liquid cooling of thermoplastics extrusions in an enclosed calibrating chamber comprising a plurality of liquid jets for the calibrating chamber, a liquid receptacle for positioning beneath the calibrating chamber for receiving liquid sprayed into the calibrating chamber by said liquid jets, a pump for removing liquid from said liquid receptacle and supplying said liquid to said liquid jets under pressure and monitoring device for controlling said pump to maintain a liquid level selectively within said liquid receptacle or above the level of said liquid jets in said calibrating chamber.
A calibrating device for calibrating thermoplastics extrusions comprising an enclosed calibrating chamber, through which the extrusions pass, a plurality of liquid jets in said calibrating chamber for spraying cooling liquid onto the extrusions passing therethrough, a liquid receptacle situated beneath said calibrating chamber for receiving liquid from said calibrating chamber, a pump for removing liquid from said liquid receptacle and supplying said liquid to said liquid jets, monitoring devices for controlling said pump to maintain a liquid level selectively within said liquid receptacle or above the level of said liquid jets in said calibrating chamber and a controllable liquid outlet between said pump and said liquid receptacle for removing liquid from the system of said liquid jets, said calibrating chamber, said liquid receptacle and said pump when lowering said liquid level from said level above said liquid jets to said liquid level in said receptacle.
Dependencies are inferred from the claim text.