Dynamically balanced exhaust pipe cap

Details Dynamically balanced exhaust pipe cap Dynamically balanced exhaust pipe cap

1986-05-12

1987-05-26

Joyce, Harold

98119, F23L 1702

Patent

active

046675825

ABSTRACT:
A dynamically balanced protective cap for exhaust pipes, including a tubular element having an angulated bias cut defining a slanted opening at one end thereof. A closure flap assembly is pivotally secured to the tubular element for pivotation about a horizontal axis. The closure flap assembly includes a closure plate configured to lie across the close the slanted opening at one end of the pipe. The flap assembly also has a pair of parallel, trapezoidally shaped balancing plates, each secured along one edge to one edge of the closure plate. The parallel balancing plates are disposed on opposite sides of the tubular element, and each carries a bearing sleeve which receives a stub axel secured to the tubular element. A pair of horizontally spaced, monoplanar wind vanes are secured to aligned edges on the two balancing plates, and each wind vane extends normal to the respective balancing plate to which it is secured.

REFERENCES:
patent: 1291184 (1919-01-01), Schulz
patent: 1944321 (1934-01-01), Huxter
patent: 2396876 (1946-03-01), Olsen
patent: 2508615 (1950-05-01), Lukes
patent: 2983216 (1961-05-01), Stade et al.
patent: 3363537 (1968-01-01), De Penning
patent: 3446010 (1969-05-01), Hopkins
patent: 3523499 (1970-08-01), Bauerschmidt
patent: 3788072 (1974-01-01), Burger

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