Method for heat sealing

Apparatus is provided for sealing heat sealable material with a single actuation drive train. The drive train comprises a series of gripping, heating and squeezing elements directly actuatable and sequentialy staged in conjunction with eccentric linkages and the rotational position of a single drive...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KNUDSEN, JR., ERNEST W, GRAVES, DANIEL G, VERNARD L
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CONVEYING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HANDLING THIN OR FILAMENTARY MATERIAL INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGINGARTICLES OR MATERIALS PACKING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STORING TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING UNPACKING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	Apparatus is provided for sealing heat sealable material with a single actuation drive train. The drive train comprises a series of gripping, heating and squeezing elements directly actuatable and sequentialy staged in conjunction with eccentric linkages and the rotational position of a single drive shaft operable by a single handle and/or input source. In a manual mode the second hand of the operator is thus free to collect and position the material to be sealed, saving time and reducing operator error. The gripping and squeezing elements and their operation are also selectively programmable by the construction and orientation of the particular eccentric linkage to facilitate wide variations in the scope of sealing applications.