초록 ▼

A dynamically balanced exhaust pipe cap which includes an elongated tubular member having an upper end defined by an upper edge lying in a plane extending an an acute angle to the longitudinal axis of the tubular member. A closure flap assembly is pivotally secured to the upper end of the tubular me

A dynamically balanced exhaust pipe cap which includes an elongated tubular member having an upper end defined by an upper edge lying in a plane extending an an acute angle to the longitudinal axis of the tubular member. A closure flap assembly is pivotally secured to the upper end of the tubular member and includes a closure plate having a pair of balancing plates which extend downwardly from the closure plate on opposite sides of the tubular member. A pair of wind vanes are secured to the two balancing plates.

대표청구항 ▼

A protective closure cap for an exhaust pipe comprising: an annular clamping band for extending around, and mounting the cap upon, an exhaust pipe; hook means connected to the clamping band and projecting therefrom for hooking over the upper edge of an exhaust pipe around which the clamping band ext

A protective closure cap for an exhaust pipe comprising: an annular clamping band for extending around, and mounting the cap upon, an exhaust pipe; hook means connected to the clamping band and projecting therefrom for hooking over the upper edge of an exhaust pipe around which the clamping band extends; and a closure flap assembly pivotally connected to said annular clamping band for pivotation about a horizontal axis, said closure flap assembly comprising: a closure plate of a size to fit across, and close by covering, the upper end of said exhaust pipe, said closure plate defining a carbon-relief indentation at a location aligned with said hook and adapted to bridge across the upper edge of said exhaust pipe when said clamping band is placed therearound and said hook is engaged with said upper edge of the exhaust pipe whereby exhaust gas from the exhaust pipe can bleed through said carbon-relief indentation sufficiently to avoid carbon build up on the upper edge of said exhaust pipe; a pair of balancing plates connected to opposite sides of the closure plate and projecting downwardly on opposite sides of said clamping band; a metallic stop element extending between said balancing plates; axle means pivotally supporting the balancing plate on the clamping band for pivotation about a horizontal axis; damping means dynamically and yieldingly cooperating with said closure flap assembly, and yieldingly resisting the pivotal movement of said balancing plates and closure plate about said horizontal axis to slow the opening and closing movement of said closure plate, and reduce the noise level of contact of the closure plate with the upper edge of the exhaust pipe upon closing; and means arresting the upward pivoting movement of said closure plate.