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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 11560910 B1

PDFFull Text
Date of Patent:
Jan. 24, 2023

Filed:

Jan. 14, 2020

Fastener using lubricated interference fit

Applicant:

Lisi Aerospace, Paris, FR;

Inventors:

Laurent Bourges, Rancho Palos Verdes, CA (US);

Johan Stephan, Houilles, FR;

Christophe Van Daele, Conflans Sainte Honorine, FR;

Assignee:

LISI AEROSPACE, Paris, FR;

Attorney:

Henricks Slavin LLP

Primary Examiner:

Kevin R Kruer

Int. Cl.
CPC ...
F16B 4/00 (2006.01); F16B 5/02 (2006.01); F16B 33/00 (2006.01); F16B 33/06 (2006.01); B64D 45/02 (2006.01); C09D 123/02 (2006.01); B05D 3/04 (2006.01); C09D 5/00 (2006.01); C09D 5/14 (2006.01); C09D 123/06 (2006.01); C09D 123/12 (2006.01); C10M 107/04 (2006.01); C10M 107/06 (2006.01); C10M 125/26 (2006.01); C10M 129/16 (2006.01); C10M 147/02 (2006.01); C23C 26/00 (2006.01); F16B 1/00 (2006.01); C10N 30/16 (2006.01);
U.S. Cl.
CPC ...
F16B 4/004 (2013.01); B05D 3/0493 (2013.01); B64D 45/02 (2013.01); C09D 5/00 (2013.01); C09D 5/14 (2013.01); C09D 123/02 (2013.01); C09D 123/06 (2013.01); C09D 123/12 (2013.01); C10M 107/04 (2013.01); C10M 107/06 (2013.01); C10M 125/26 (2013.01); C10M 129/16 (2013.01); C10M 147/02 (2013.01); C23C 26/00 (2013.01); F16B 5/02 (2013.01); F16B 33/008 (2013.01); F16B 33/06 (2013.01); C10M 2201/105 (2013.01); C10M 2205/0225 (2013.01); C10M 2205/0245 (2013.01); C10M 2207/04 (2013.01); C10M 2213/02 (2013.01); C10N 2030/16 (2013.01); F16B 2001/0064 (2013.01);
Abstract

The invention relates to a method for installing metallic fastener () for the interference fit assembly of at least two structural elements () comprising a through hole, the fastener comprising an enlarged head (), a shaft () having an external diameter before installation that is greater than an internal diameter of the hole, said shaft comprising a conductive surface (). Before installation, at least the conductive surface () is coated with a lubricating layer (), which comprises a mixture of at least one polyolefin and one polytetrafluoroethylene, for example, having sufficient adherence to prevent its abrasion by manual manipulation of the fastener and being weak enough to be at least partly stripped from the conductive surface during the interference fit assembly of the fastener. The invention is applicable to the assembly of aircraft structures.

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