Module builder back door latch

  • US 4,802,604 A
  • Filed: 02/24/1988
  • Issued: 02/07/1989
  • Est. Priority Date: 02/24/1988
  • Status: Expired due to Term
First Claim
Patent Images

1. In a cotton module builder having:

  • a. a rectangular top frame,b. side panels sloping outward from the top frame, andc. a back door having an outer surface hinged at its top to the top frame, and sloping outward;

    Wherein the Improvement Comprisesd. a horizontal latch shaft having two ends journaled to the lower outer surface of door,e. a lug on the shaft,f. a crank on each end of the shaft,g. a latch bolt on each of the cranks,h. a catch on the rear of each of the side panels,i. so arranged and constructed that when the door is closed rotation of the shaft will cause each of the latch bolts to engage the catches and securely latch the door closed, andj. a hydraulic cylinder interconnecting the top frame and the lug on the latch shaftk. so arranged and constructed that contraction of the cylinder will first rotate the shaft to unlatch the door and continued contraction will raise the door, andl. expansion of the cylinder will permit gravity to close the door and continued expansion will rotate the shaft to latch the door as set out above.

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