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. 19, 1994
Filed:
Jan. 27, 1993
Applicant:
Inventor:
Michael J Dolan, Brecksville, OH (US);
Assignee:
Norton Chemical Process Products Corporation, Worcester, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01F / ;
U.S. Cl.
CPC ...
261 94 ; 261D / ;
Abstract
Metal strips are provided which can be bent into the shape of cylindrical packing elements of the Lessing or Pall ring type. These strips have one end bent back at an acute angle to the rest of the strip and have slots cut into the strip in the vicinity of the bend. At the opposed end tabs are provided that engage with the slots when the strip is formed into a cylinder so as to hold the ends together. Such packing elements have a much greater resistance to crushing than conventional elements and can be made of much thinner metal.