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:
Nov. 06, 2001
Filed:
May. 28, 1998
Applicant:
Inventors:
John T. Herman, Dellwood, MN (US);
Michael J. Protas, Crystal, MN (US);
Wayne M. Wagner, Apple Valley, MN (US);
Assignee:
Donaldson Company, Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 1/116 ;
U.S. Cl.
CPC ...
F16L 1/116 ;
Abstract
The present disclosure relates to a flexible metal hose including a continuous metal strip having rounded lateral edges. The continuous strip is wound in a helical pattern to form a cylindrical hose body. The strip has a generally S-shaped cross section including an inner hook portion and an outer hook portion. The strip is helically wrapped such that the inner and outer hook portions of adjacent wraps interlock to form flexible joints of the hose.