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 7263821 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 04, 2007

Filed:

Apr. 28, 2004
Applicants:

Andreas Nuding, Geislingen, DE;

Werner Lang, Westhausen-Lippach, DE;

Hans Dalferth, Aalen-Wasseralfingen, DE;

Inventors:

Andreas Nuding, Geislingen, DE;

Werner Lang, Westhausen-Lippach, DE;

Hans Dalferth, Aalen-Wasseralfingen, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16G 15/02 (2006.01); F16G 15/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A chain lock has two lock parts which can be displaced in the longitudinal direction of the lock in order to open and close the lock. Each lock part has a journal () which is arranged on one end and a pocket () which is arranged on the other end in order to receive a journal () of the other lock part. Each journal () is fitted with at least one retaining web () which can be displaced in a retaining groove () of the pocket () of the other lock part. The journal () and the pocket () have a cross-section which continuously widens or expands in the longitudinal direction of the lock.


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