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:
Sep. 30, 1986
Filed:
Jul. 02, 1984
Applicant:
Inventor:
John M Murray, Canoga Park, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60D / ;
U.S. Cl.
CPC ...
280507 ; 280428 ;
Abstract
When the air brake line on a semi-trailer is disconnected, a plunger is thrust down through the semi-trailer bottom plate to obstruct access to the semi-trailer hitch pin. Reconnection of the air brake line withdraws the plunger.