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:
Feb. 27, 2001

Filed:

Dec. 06, 1999
Applicant:
Inventors:

Michael Stumpf, Bielefeld, DE;

August Borchard, Lemgo, DE;

Peter Jankowski, Bielefeld, DE;

Assignee:

Bollhoff GmbH, Bielefeld, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16B 3/704 ;
U.S. Cl.
CPC ...
F16B 3/704 ;
Abstract

A metal insert, in particular a threaded metal insert, adapted to be embedded in a receiving bore of a plastic part. The insert has a sleeve-like body member. At least one row of teeth projects from the peripheral surface of the body member, which teeth are circumferentially spaced with respect to each other. Each tooth is of a shape such that it diverges from a tooth front end in an axial direction and terminates in an end face extending transverse to said axial direction at a tooth terminal end. Between the teeth are gaps which taper in said axial direction while they remain open between said end faces of adjacent teeth. The teeth ensure that insertion forces for urging the insert into the plastic part are minimal, while resistance to withdrawal of the insert is maximal.


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