The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 04, 1989
Filed:
Jun. 04, 1986
Applicant:
Inventor:
Anders Sundberg, Bankogatan 20, SE;
Assignee:
Tetra Pak International, Lund, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; G01N / ;
U.S. Cl.
CPC ...
156 64 ; 156 731 ; 156366 ; 219492 ;
Abstract
A method for regulating the supply of energy to a sealing device for the sealing of thermoplastic material includes supplying electric energy to a sealing device pressed against the combined thermoplastic material with whose help the said electric energy is converted to thermal energy. The amount of energy supplied to the sealing device is variable to compensate for heat losses brought about by heat leakage during the sealing opertion. An arrangement for carrying out the method is also disclosed.