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:
Jan. 20, 1987

Filed:

Apr. 03, 1984
Applicant:
Inventor:

Mitsuo Kusakabe, Kobe, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23D / ; B23D / ;
U.S. Cl.
CPC ...
83319 ; 83 54 ; 83456 ;
Abstract

An apparatus for use in a tube manufacturing plant wherein a coiled strip is made into a continuous tube. The tube is fed to the apparatus at a given speed and severed into a specified length with minimized errors in accordance with the contemplated use by a cutting assembly traveling in synchronism with the feed of the tube. When the speed of the cutting assembly matches the speed of the tube, a ram is lowered from above by a crank assembly to cause a notching blade and a cutoff blade to cut the tube without dimples. The ram is elongated and supported by a plurality of crankshafts which are adapted for synchronous rotation optimally by a synchronizing link. For dimpleless cutting, the notching blade is revolved and thereby moved at an increased speed to form a deep and wide notch in the tube.


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