Rear-end hydraulic loader for tractor

• US 3,362,554 A
• Filed: 07/14/1966
• Issued: 01/09/1968
• Est. Priority Date: 07/14/1966
• Status: Expired due to Term

• Current Assignee: Laurent Fortier
• Original Assignee: Laurent Fortier
• Inventors: LAURENT FORTIER
• Application Number:
  US04/565,257
• Time in Patent Office: 544 Days
• US Class Current: 414/703
• CPC Class Codes: A01C 3/04 Manure loaders

Claims

1. IN A REAR-END HYDRAULIC LOADER FOR A TRACTOR HAVING A PAIR OF LIFTING LEVERS AT THE BACK THEREOF AND POWER MEANS FOR RAISING AND LOWERING SAID LIFTING LEVERS AND WHEREIN THE LOADER COMPRISES A MAIN ARM HAVING A TRANSVERSE LEG AT THE INNER END THEREOF, THE OUTER ENDS OF SAID TRANSVERSE LEG BEING PIVOTALLY CONNECTED TO SAID PAIR OF LIFTING LEVERS A LOADING DEVICE BEING MOUNTED AT THE OUTER END OF SAID MAIN ARM, AN UPSTANDING MEMBER BEING PIVOTALLY CONNECTED TO SAID MAIN ARM AT ITS LOWER END ON SAID TRANSVERSE LEG, A LINK BEING PIVOTALLY CONNECTED TO THE UPPER END OF SAID UPSTANDING MEMBER AND TO SAID TRACTOR AT A POINT ABOVE THE POINTS OF ATTACHMENTS OF SAID LIFTING LEVERS TO SAID TRACTOR, A FIRST COLLAPSIBLE TENSION MEMBER BETWEEN SAID UPSTANDING MEMBER AND SAID MAIN ARM AND A SECOND COLLAPSIBLE TENSION MEMBER ATTACHED AT ONE END THEREOF TO SAID MAIN ARM AT A POINT BETWEEN THE INNER END OF SAID MAIN ARM AND THE POINT OF ATTACHMENT OF SAID FIRST COLLAPSIBLE TENSION MEMBER ON SAID MAIN ARM, SAID SECOND COLLAPSIBLE TENSION MEMBER BEING ADAPTED TO BE CONNECTED AT THE OTHER END THEREOF IN AN INOPERATIVE FREELY EXTENSIBLE POSITION ON SAID UPSTANDING MEMBER WHEN SAID LIFTING LEVERS ARE CAUSED TO RAISE AND LOWER SAID MAIN ARM AND UPSTANDING MEMBER BETWEEN A LOWERED AND A RAISED UPWARDLY INCLINED POSITION FOR NORMAL LOADING OPERATION, SAID SECOND COLLAPSIBLE TENSION MEMBER BEING ADAPTED TO BE CONNECTED AT THE OTHER END THEREOF IN AN OPERATIVE STRETCHED POSITION, TO SAID TRACTOR AT A POINT ABOVE THE POIINTS OF ATTACHMENT OF SAID LIFTING LEVERS TO SAID TRACTOR, TO CUASE STRETCHING OF SAID SECOND COLLAPSIBLE TENSION MEMBER AND PIVOTING OF SAID MAIN ARM INTO AN INOPERATIVE UPRIGHT POSITION.