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:
May. 29, 2001
Filed:
Mar. 19, 1999
Peter M. Kenny, Sunderland, GB;
Peter F. Prillinger, Dunlap, IL (US);
David A. Young, Sunderland, GB;
Caterpillar S.A.R.L., Geneva, CH;
Abstract
An over-center ejector blade retaining system which automatically locks the ejector blade in a loading position when the ejector blade has been retracted into the load position by operation of the hydraulic cylinder or ram to which it is attached. Movement of the ejector blade into the load position rotates a lock plate attached to the vehicle body into engagement with a locking roller attached to the ejector blade thereby compressing a spring attached to the lock plate. Upon movement of the connection between the lock plate and the spring over the center of rotation of the lock plate, the compressive force on the spring is released and the ejector blade held in the load position. When the ejector blade is moved from the load position to discharge materials, the process is reversed and the lock plate held in an open position for again receiving the locking rollers upon the return of the ejector blade to the load position.