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:
Jun. 28, 1977
Filed:
May. 12, 1976
Philip M De Groat, Endicott, NY (US);
Robert A Lewis, Port Crane, NY (US);
Other;
Abstract
A locking mechanism prevents a conventional interlocking towing connection between a tractor and trailer, the locking mechanism includes a main body of forged steel, a king pin chamber and a secondary chamber opening into and situated at an angle with respect to the king pin chamber, a rotating lock bar mounted in the secondary chamber and having an end portion which may be rotated into a position adjacent to the reduced diameter portion of the king pin to prevent removal of the main body housing from the king pin, an increased diameter of the lock bar situating it within the main body housing thereby preventing the lock bar from being physically moved along its longitudinal axis in spite of the removal of a shouldered lock mechanism, the only means of removing the king pin lock being a 180.degree. rotation of the lock bar.