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. 20, 1976
Filed:
Dec. 23, 1974
Applicant:
Inventors:
Ronald J Lievens, Onalaska, WI (US);
Richard W Kabat, Genoa, WI (US);
Assignee:
The Trane Company, La Crosse, WI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23P / ; B23P / ;
U.S. Cl.
CPC ...
2915 / ; 29446 ; 2945 / ; 415217 ; 416189 ;
Abstract
A vane axial flow fan is shown having a shroud construction which provides greater than normal rigidity in the areas co-extensive with the stator vanes and fan wheel blades. Further, a novel method of constructing an axial flow fan is disclosed wherein the stator vanes are first mounted on an expandable split ring which is then placed within an annular stator housing. The split ring is then expanded to reduce stator vane end clearance prior to being permanently secured in place by welding.
Lievens, Ronald. (1976). Method of constructing an axial flow fan (U.S. Patent No. 3969805). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3969805
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile