Device for sealing a film onto a blister band, particularly a polypropylene band
June 8, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3762617 3808772 3908340 Arrangement for aligning heat-sealable lids on mating product-filled containers Vacuum packaging machine for the production of sealed packages Packaging machine Device for enabling registry of operations in an apparatus for continuously forming containers filled with material Heat seal method Method and apparatus for enveloping articles with a plastic foil or the like Method and device for the length rectification of a foil strip of a material which shrinks during cooling in machines for the production and separation of packages Patent #: 4894977 InventorApplicationNo. 895206 filed on 06/08/1992US Classes:53/559, Forming a pocket, depression, or hollow compartment by application of heat or pressure (e.g., stretch forming)53/51, REGISTER CONTROL53/75, Of package and filled receptacle closing or opening53/329.4, With means to advance package during securing53/374.6And moving perpendicularly to package movement during closingExaminersPrimary: Larson, Lowell A.Assistant: Moon, Daniel Attorney, Agent or FirmForeign Patent References
International ClassB65B 047/00Foreign Application Priority Data1989-12-29 ITAbstractIn a line for packaging products in blisters made in a band of polypropylene, a device for heat sealing a film onto the blister band comprises a frame supporting an upper plate and a lower plate with hollows suited for receive the blisters. When the hollows match against the blisters of the band the plates are brought near to each other so as to clamp, in a sealing station, the interposed film and blister band, while the device allows the moving of the sealing station along an advancement direction of the band according to a longitudinal shortening of the band with respect to the steady state operation of the line.Field of SearchREGISTER CONTROLOf package and filled receptacle closing or opening Closing means moving with package during closing And moving perpendicularly to package movement during closing With means to advance package during securing Forming a pocket or depression in cover material by applying heat or pressure (e.g., stretch forming) Forming a pocket, depression, or hollow compartment by application of heat or pressure (e.g., stretch forming) And moving perpendicularly to package movement during closing | |
