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:
Jan. 18, 1994
Filed:
Mar. 12, 1993
Masao Fukuda, Shiga, JP;
Ishida Scales Mfg. Co., Ltd., Kyoto, JP;
Abstract
A horizontal sealer for a vertical pillow type form-fill-seal packaging machine has a pair of horizontally elongated heater assemblies which are supported such that they remain horizontal as they individually rotate around mutually parallel axes. The distance between these axes are varied as the heater assemblies rotate around them such that the heater assemblies have generally D-shaped trajectories as they horizontally seal a tubularly formed thermoplastic flexible film material to make a bag. Mechanisms are provided whereby the heating surfaces of the assemblies remain oriented in the same direction, the pressure applied to the film material can be controlled and the bag can be squeezed before the horizontal sealing such that articles being packaged will settle inside the bag. A similarly structured vertical sealer may be provided to a horizontal pillow type packaging machine.