Cover assembly for vertical exhaust pipes

Details Cover assembly for vertical exhaust pipes Cover assembly for vertical exhaust pipes

F - Mech Eng,Light,Heat,Weapons

01

N

172/41, 98/47

F01N 13/08 (2010.01) F23L 17/02 (2006.01)

Patent

CA 1197787

IMPROVED COVER ASSEMBLY FOR VERTICAL EXHAUST PIPES ABSTRACT OF THE DISCLOSURE A pivotally mounted cover assembly for the end of an upstanding exhaust pipe has a pivot structure constructed to include a plastic sleeve-type bearing pivotally mounted directly on a pivot shaft; the plastic bearing provides a seat for a flange member formed on the pivotal support arm of the cover member. A cover support arm including a pair of the aligned annular flanges mounted on separate, aligned plastic bearings facilitates assembly and replacement of the pivot structure and eliminates the need for an inner bearing. The cover assembly can further include notches on a pivot support member to receive locking tabs formed on a plastic bumper member which is engaged by stop members formed on the cover support arm to absorb the impact and reduce the noise as the pivotal cover reaches open and closed positions on the end of the pipe stack. -1-

426089

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