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.:
Date of Patent:
Oct. 13, 1998
Filed:
May. 02, 1996
Applicant:
Inventors:
Duane B Grahovec, Palos Park, IL (US);
James E Krueger, Timley Park, IL (US);
Assignee:
American Lock Company, Crete, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E05B / ;
U.S. Cl.
CPC ...
70 3 / ; 70 31 ;
Abstract
A padlock having a U-shaped rigid shackle, a pair of locking balls, a rotatable retainer, and a lock cylinder held into a two piece composite plastic lock body. The two piece lock body can be ultrasonically welded together to capture the mechanical parts inside. The shackle can be metal such as steel, as can be the other mechanical parts. A lightweight, inexpensive yet reliable medium security lock is thus provided. The lock can be used as a safety lock out device or it can be used as a padlock for medium security applications.