Safety door for rotary kiln

Details Safety door for rotary kiln Safety door for rotary kiln

2009-10-05

2011-11-15

Wilson, Gregory A (Department: 3749)

Heating

Heating or heat retaining work chamber structure

Door, cover or port

C432S237000, C432S242000, C110S17300B

Reexamination Certificate

active

08057225

ABSTRACT:
A safety door for covering openings in a rotary kiln during maintenance operations on the rotary kiln. The door is affixed to the exterior surface of the rotary kiln and includes a hatch pivotally secured at one side edge thereof by a pivot rod to a frame. A plurality of tension coil springs are disposed on the pivot rod and continuously bias the hatch toward the opening with a force of approximately 400 pounds.

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