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6921327 |
Exhaust pipe cover
An exhaust pipe cover adapted to resist wind-induced uplift and entry of any accompanying and/or independent rain, snow, dirt, dust, and/or other foreign matter, into the exhaust pipe and...
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6699118 |
Vent apparatus
A vent apparatus for an enclosed space such as that within a structure or a vehicle, including a vent tube having a first end that extends outside of the closed space and a second end that is...
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6206774 |
Roof environmental exhaust duct
An environmental exhaust duct adapted to be mounted on a roof allows for exhaust gases to escape while preventing water and debris from entering the building. The exhaust duct has a flap which is...
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5267894 |
Vent pipe termination with flapper and side vent
A vent termination assembly for a vertical pipe, stack or tube including a hinged flapper to normally close the end of said vent termination assembly and at least one downwardly sloping normally...
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5092226 |
Incinerator chimney stack valve mechanism
An incinerator chimney stack valve mechanism which normally prevents the flow of fluid from the chimney stack. The incinerator chimney stack valve mechanism is mounted upon the chimney stack...
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4989503 |
Wind controlled roof ventilation system
A wind-directed ventilator hood assembly for a narrow elongated air exit opening in the roof of a farm building spanning a long portion of the roof, including hood supporting uprights projecting...
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4727796 |
Weather cap for upstanding exhaust pipes
A weather cap for upstanding exhaust pipes for gasoline and diesel engines and the like having an improved mechanism for securing the cap to the pipe. The mechanism comprises an elongated post to...
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4671171 |
Aerodynamically operated rain cap
A rain cap or protective cover device for an exhaust stack of an internal combustion engine is disclosed that is movable between a standby protective position and an operating position. In the...
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4667582 |
Dynamically balanced exhaust pipe cap
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...
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4580488 |
Weather caps for exhaust pipes
A weather cap for an exhaust pipe includes a mounting collar adapted to surround the exhaust pipe and including supporting arms extending therefrom. A resilient bumper is supported on a clamping...
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4497310 |
Flue box with adjustable counterbalance cap
There is disclosed an improved flue box assembly for use in conjunction with a heating plant, the flue box having a housing with an interior diametric opening substantially greater than the exhaust...
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4495859 |
Cover assembly for vertical exhaust pipes
A gravity actuated protective cover assembly to be secured upon the upstanding exhaust stack of an internal combustion engine overlying the open end of the stack. The cover assembly includes a...
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4483315 |
Fireplace chimney cap and damper combination
A chimney cap pivotally mounted at one end to allow secure closure of the cap or opening for operation. The lower end of the chimney is connected to a fireplace which has its own manually operated...
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4383478 |
Rain cap with pivot support means
A pivotal connection between a gravity-actuated protective cover and a bracket structure for supporting the cover device on an exhaust conduit includes a center spacer that has a chrome hardened...
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4380952 |
Cover assembly for vertical exhaust pipes
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;...
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4255928 |
Swingable rain cover for vertical exhaust pipes with stop means
A cover assembly is provided to be secured to the upper end of an exhaust pipe of an internal combustion engine maintained outdoors in such a manner such that a cap forming part of the assembly...
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4226173 |
Protective cap for an exhaust pipe
A protective cap for an exhaust pipe. A U-shaped clamp is disposed around the exhaust pipe adjacent its outer end and an arm which carries a lid is pivoted to the free ends of the clamp. The lid is...
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4205706 |
Protective cap for an exhaust pipe
A temperature responsive protective cap for a gas exhaust pipe. The cap includes a base portion which is connected to the upper end of the exhaust pipe of an internal combustion engine, and a lid...
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3964376 |
Tamper-proof weather cover device for exhaust pipes
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...
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3847297 |
RAIN CAP GUARD AND LOCK FOR EXHAUST PIPES
This is an attachment for vertical exhaust pipes embodying a lid or cover to prevent accidental entry of foreign matter into the exhaust systems of engines, a counterbalance feature to minimize...
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3791282 |
WEATHER CAP FOR EXHAUST PIPE
A weather cap for an upstanding exhaust pipe includes a cover flap which, in the absence of gas pressure within the exhaust pipe, covers the exhaust port and, in the presence of gas pressure,...
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3788072 |
RAIN CAP FOR EXHAUST PIPE
A rain cap for a vertical exhaust of an internal combustion engine is formed of an open-ended cylindrical body larger than the exhaust pipe and having a pivotally mounted cover opened by exhaust...
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3667260 |
EXHAUST PIPE PROTECTOR LOCK
For the protection of the outer end portion of an internal combustion engine exhaust pipe, a protector is available which includes a collar secured to the outer end portion of the exhaust pipe...
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3626984 |
VENTING ARRANGEMENT FOR STORAGE TANKS
Petroleum storage tanks or the cargo tanks of a tank ship have an upwardly directed minimum velocity escape valve in the vent line or lines. During filling this ensures that no flammable...
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3523499 |
WEATHER CAP CONSTRUCTION
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3407720 |
Exhaust cover
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3356007 |
Exhaust protective cover
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3334932 |
Transport-storage latch
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3274917 |
Protective cover for exhaust pipes
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3251336 |
Gas safety vent cover with indicating means
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2983216 |
Engine exhaust rain cap
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2832585 |
Air cooled damper construction for foundry cupola cooling towers
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