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:
Jul. 07, 1981
Filed:
Oct. 04, 1979
Robert L Propst, Bellvue, WA (US);
Paul L Propst, Ann Arbor, MI (US);
Herman Miller, Inc., Zeeland, MI (US);
Abstract
A material handling system comprising a plurality of material-transporting lorries adapted to be pivotally connected end-to-end and a towing vehicle adapted to pull a train of connected lorries. Each of the lorries has a load-carrying body portion, end portions extending transversely of the body, and ground-engaging wheels arranged in substantially spaced pairs supported on the end portions. The towing vehicle has a low-profile rear section which can be moved under one of the end portions of the lorries between the wheels to releasably connect the towing vehicle and the first lorry. A projection extends upwardly from the rear section of the towing vehicle, into a recess formed in the front side of the lorry end portion and is maintained therein by a spring actuated abutment member which engages the back side of the lorry end portion. The projection and the abutment member thus cooperate to restrict relative horizontal movement of the towing vehicle and the lorry.