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.

Date of Patent:
May. 24, 2022

Filed:

Mar. 03, 2021
Applicant:

Böllhoff Verbindungstechnik Gmbh, Bielefeld, DE;

Inventors:

Klaus-Friedrich Grubert, Bückeburg, DE;

André Röhr, Herford-Elverdissen, DE;

Helmut Schäfer, Kernen, DE;

Rayk Gutsche, Stuttgart, DE;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16B 39/20 (2006.01);
U.S. Cl.
CPC ...
F16B 39/20 (2013.01);
Abstract

An assembly locking device adapted to a normalized standard or fine thread of a thread shaft of a thread bolt, so that the locking device is positionable in a loss-proof manner on the thread of the thread shaft. The locking device includes: a cylindrical turn comprised of a plurality of helically wound turns, of a wire, a transition turn and adjacent to the second end of the helix is a blocking turn which has a negative pitch Pcompared to the holding turn, so that at least an end portion of the blocking turn is elastically displaceable in the axial direction of the central longitudinal axis between an insertion position and a blocking position. The end portion of the blocking turn forms the second end of the helix and in the blocking position is arranged radially outwardly of the transition turn and/or the holding turn.


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