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.:

US 10208766 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 19, 2019

Filed:

Feb. 10, 2016
Applicant:

Piercarlo Boffelli, Tribiano, IT;

Inventor:

Piercarlo Boffelli, Tribiano, IT;

Assignee:

BARUFFALDI S.P.A., Tribiano (MI), IT;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/36 (2006.01); F04D 29/66 (2006.01); F04D 29/64 (2006.01);
U.S. Cl.
CPC ...
F04D 29/362 (2013.01); F04D 29/646 (2013.01); F04D 29/668 (2013.01);
Abstract

Pre-assembled blade () for fans () for cooling the coolant contained inside the radiator () of operating machines and/or vehicles, comprising a blade body () rigidly connected to an axial shank (), a part of which situated radially on the outside of the blade body is in the form of a cylindrical pin (); wherein the shank () has a part axially on the outside of the blade body in the form of a cylindrical pin (), holes () with internal female threading being formed inside the pin (); and in that the blade () comprises —a blade flange () comprising. a hollow cylindrical body (), the opposite end bases of which comprise respectively: a flat edge () provided with through-holes (). an inset annular seat (); a disk () provided with through-holes () and an eccentric recess () for stably containing with friction a pin () which is also eccentric, for rotationally actuating the blade about its axis; —screws () designed to pass through the through-holes () in the disk () and mate with the female thread of the holes () in the pin () in order to fix relative to each other the disk (), flange () and pin (), thus ensuring a definite angular alignment of the blade relative to the pin () during pre-assembly.


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