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.

Date of Patent:
May. 22, 1979

Filed:

May. 10, 1977
Applicant:
Inventors:

Fukumatsu Matsushita, Yokohama, JP;

Yoshiaki Kasuga, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
156494 ; 100 / ; 156495 ;
Abstract

A strapping machine comprises a roller for reversely rotating by a one way motor to tighten a package with a band, a differential reducing mechanism engaged to a clutch whereby the roller is reversely rotated at high speed before sliding the clutch and is further reversely rotated at low speed and high torque after sliding the clutch and a seal forming shaft starts when a return roller is stopped under a predetermined tension applied by tightening the band. The strapping machine further comprises a cutter anvil to contact the inner surfaces of the bands at the superposed part with a heating element inserted into the superposed part of the bands and a cutter for cutting the band under suitable tension after cooling the heat-sealed bands.


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