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:
Jul. 27, 1976
Filed:
Sep. 16, 1974
Applicant:
Inventor:
Frank A Simmons, Grayslake, IL (US);
Assignee:
Burgess Vibrocrafters, Inc., Grayslake, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23P / ; B23Q / ;
U.S. Cl.
CPC ...
137604 ; 29190 ; 2915 / ; 72461 ;
Abstract
A Venturi is formed in a portion of the passage of a metal tube by drilling an opening in the downstream part of the tube wall at that portion and deforming the metal at the upstream part of the wall inwardly by a cold flow of the metal so as to define a step in that portion with the opening at the downstream end of that step.