Tamper-proof weather cover device for exhaust pipes

Details Tamper-proof weather cover device for exhaust pipes Tamper-proof weather cover device for exhaust pipes

1974-12-11

1976-06-22

O'Dea, William F.

F23L 1702

Patent

active

039643760

ABSTRACT:
A hinged lid closes the upper end of the vertical exhaust pipe of an internal combustion engine to keep rain and snow from entering the engine when it is shut down. A latch prevents vandals from manually opening the lid, but the latch is automatically released by the force of the exhaust gases striking a pivotal vane carried on the underside of the lid when the engine is started. The escaping exhaust gases also act against the lid to open it, and the lid remains open as long as the engine continues to operate. However, each time the engine is shut down the lid is again automatically latched closed and cannot be manually opened. This prevents the pouring of water, sand or other debris into the exhaust pipe by vandals, and has the added advantage of keeping the lid from being blown open by the wind. Provision is made for utilizing a conventional padlock so as to externally lock the lid closed or, if desired, to lock the lid open.

REFERENCES:
patent: 641028 (1900-01-01), Meehan
patent: 3274917 (1966-09-01), Tolbery, Sr.
patent: 3407720 (1968-10-01), Westerman
patent: 3667260 (1972-06-01), Foote

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