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公开(公告)号：US20180135618A1
公开(公告)日：2018-05-17
申请号：US15521887
申请日：2015-10-30
Applicant: KHS Corpoplast GmbH
Inventor： Rolf BAUMGARTE , Ludwig CLÜSSERATH , Werner LESINSKI , Michael LINKE , Michael LITZENBERG , Niels MEYER
Abstract: The present invention relates to a piston assembly for pumping a liquid, in particular in a bottle filling system. The object of the invention is to propose a piston assembly for pumping a liquid, which can be cleaned and/or disinfected without dismantling of the piston or performing any other external interventions into the assembly. The object is achieved by a piston assembly for pumping a liquid, which comprises a piston 1 that travels within a cylinder 2 and has a working path A between a first inversion point U1 and a second inversion point U2, with the piston 1 forming a tight seal with respect to the cylinder 2 in the region of the working path. The assembly is characterized in that beyond one of the two inversion points U1, U2, outside of the working path A, the diameter of the cylinder 2 is enlarged in one section 8 such that the sealing closure is eliminated there, and the piston 1 can be moved into this area for a cleaning and/or disinfection process.
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公开(公告)号：US20170321685A1
公开(公告)日：2017-11-09
申请号：US15521893
申请日：2015-10-30
Applicant: KHS Corpoplast GmbH
Inventor： Rolf BAUMGARTE , Ludwig CLÜSSERATH , Werner LESINSKI , Michael LINKE , Michael LITZENBERG , Niels MEYER
IPC: F04B43/067 , B65B39/00 , B65B3/32 , B65B3/12
CPC classification number: F04B43/067 , B65B3/12 , B65B3/32 , B65B39/001 , B65B39/004 , F04B43/107
Abstract: The invention relates to a device for pumping a liquid in a liquid line, in particular in a bottling system. The object of the invention is a device for pumping a liquid in a liquid line, the liquid-guiding areas of which device can be cleaned and/or disinfected without disassembling the piston assembly or performing any other interventions from the exterior. According to the invention, a device for pumping a liquid in a liquid line (1) comprises a pump element (2) and two valves (3, 4) which are disposed in the liquid line upstream of and downstream from the pump element, said pump element (2) comprising a pump piston (6) operating in a cylinder (5). The inventive device is characterized in that said pump element (2) comprises a closed chamber (7) having a constant volume of a secondary liquid on which the pump piston (6) acts. Also, the chamber (7) is connected to the liquid line (1) by means of an elastic liquid-impermeable element (8), which element can be deformed under the pressure exerted by the volume of the secondary liquid displaced by the pump piston (6).
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3.发明申请公开(公告)号：US20170312973A1
公开(公告)日：2017-11-02
申请号：US15531942
申请日：2015-12-03
Applicant: KHS Corpoplast GmbH
Inventor： Ludwig CLÜSSERATH , Michael LINKE , Michael LITZENBERG , Rolf BAUMGARTE , Gerhard KLÖPPER , Niels MEYER
CPC classification number: B29C49/12 , B29C49/4273 , B29C2049/1295 , B29C2049/4294 , B29L2031/712 , B65B3/022 , B65B3/14
Abstract: The invention relates to a stretch rod for the form-and-fill head of a machine for forming and filling of containers produced from preforms. The object of the invention is to devise a stretch rod of this type which can be cleaned and/or disinfected without being disassembled and without any other intervention. According to the invention, the object is achieved by a stretch rod (5) for the form-and-fill head (3) of a machine for forming and filling (molding and filling) of containers produced from preforms (2), which rod comprises a drive unit for axially moving said stretch rod (5). At least the part (6) of the drive unit which is connected to the stretch rod (5) is arranged in a drive chamber (11) which is sealed off from the regions of the form-and-fill head (3) which come into contact with the filling material (the material with which the container is being filled). The inventive stretch rod is characterized in that the sealing action is achieved by a seal (12) which surrounds the stretch rod (5).
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