Rainproof exhaust pipe
AssigneeDeere & Company
InventorsAllan J. Kruger, James P. Lob
Life of this patent
Estimating the term…
Abstract
A vertical exhaust pipe having an inner pipe with an upper opening. An outer pipe is positioned around the inner pipe and has an end portion that extends beyond the upper opening in the inner pipe, said end portion defining an outlet through which exhaust gas exits the outer pipe. A mechanism is coupled with the inner pipe for blocking rain that has entered the outer pipe from falling through the opening in the inner pipe. A ledge mechanism is positioned beneath the upper opening in the inner pipe and between the inner and outer pipes for forming a chamber within which is held rainwater that has entered the outer pipe. A drainage mechanism allows rainwater in the chamber to pass to the exterior of the outer pipe.
Claims24
An exhaust pipe coupled with a vehicle operable in an environment, and through which exhaust gases from a vehicle power source flow into the environment, comprising:
- an inner pipe extending a vertical length and through which exhaust gas flows, said inner pipe having an upper opening through which exhaust gas exits the inner pipe;
- an outer pipe positioned around the inner pipe and having an upper end portion that extends beyond the upper opening in the inner pipe, said upper end portion of the outer pipe defining an outlet through which exhaust gas exits the outer pipe generally directly after exiting the inner pipe's upper opening, said outer pipe generally extending the entire vertical length of the inner pipe for generally surrounding the entire vertical length of the inner pipe;
- means coupled with the inner pipe for blocking rain that has entered the outer pipe from falling through the opening in the inner pipe;
- ledge means positioned beneath the upper opening in the inner pipe and between the inner and outer pipes, said ledge means, inner pipe and outer pipe forming a chamber within which is held rainwater that has entered the outer pipe;
- and
- drainage means for allowing rainwater in the chamber to pass to the environment.
An exhaust pipe coupled with a vehicle operable in an environment, and through which exhaust gases from a vehicle power source flow into the environment, comprising:
- an inner pipe extending a generally vertical length and through which exhaust gas flows, said inner pipe having an upper opening formed in a side of the inner pipe and through which exhaust gas exits the inner pipe;
- an outer pipe positioned around the inner pipe and having an upper end portion that extends beyond the upper opening in the inner pipe, said upper end portion forming a bend and defining an outlet that opens to the side of the outer pipe for allowing exhaust gas to exit the outer pipe generally directly after passing through the inner pipe's upper opening, said outer pipe extending the entire vertical length of the inner pipe for generally surrounding the entire vertical length of the inner pipe;
- a ledge means positioned between the inner and outer pipes and positioned a distance beneath the upper opening in the inner pipe, said ledge means, inner pipe and outer pipe forming a chamber within which is held rainwater that has entered the outer pipe;
- an orifice formed in the outer pipe and adjacent the ledge means, said orifice allowing rainwater held in the chamber to pass to the environment;
- a plate positioned to form a cover for the upper portion of the inner pipe, said plate also extending laterally over the upper opening of the inner pipe for blocking rainwater that has entered the outer pipe from falling through the opening in the inner pipe.
An exhaust pipe coupled with a vehicle operable in an environment, and through which exhaust gases from a vehicle power source flow into the environment, comprising:
- an inner pipe having a lower end portion coupled with the vehicle power source for receiving exhaust fumes therefrom, and an upper portion vertically spaced from the lower end portion, said inner pipe extending a vertical length and having an upper opening formed in the upper end portion through which exhaust gas exits the inner pipe;
- an outer pipe positioned around the inner pipe and having a lower end portion that generally surrounds and encloses the entire lower end portion of the inner pipe, and an upper end portion that extends beyond the inner pipe's upper end portion and upper opening, said outer pipe's upper end portion defining an outlet through which exhaust gas exits the outer pipe, said outer pipe extending for the entire vertical length of the inner pipe for generally surrounding the entire vertical length of the inner pipe;
- means coupled with the inner pipe for blocking rain that has entered the outer pipe from falling through the upper opening in the inner pipe;
- ledge means positioned beneath the upper opening in the inner pipe and between the inner and outer pipes, said ledge means, inner pipe and outer pipe forming a chamber within which is held rainwater that has entered the outer pipe;
- and
- drainage means for allowing rainwater in the chamber to pass to the environment.
An exhaust pipe coupled with a vehicle operable in an environment, and through which exhaust gases from a vehicle power source flow into the environment, comprising:
- an inner pipe extending a vertical length and through which exhaust gas flows, said inner pipe having an upper opening through which exhaust gas exits the inner pipe;
- an outer pipe positioned around the inner pipe and having an upper end portion that extends beyond the upper opening in the inner pipe, said upper end portion of the outer pipe defining an outlet through which exhaust gas exits the outer pipe generally directly after exiting the inner pipe's upper opening;
- means coupled with the inner pipe for blocking rain that has entered the outer pipe from falling through the opening in the inner pipe;
- ledge means positioned beneath the upper opening in the inner pipe and between the inner and outer pipes, said ledge means, inner pipe and outer pipe forming a chamber within which is held rainwater that has entered the outer pipe;
- and
- drainage means for allowing rainwater in the chamber to pass to the environment.
Dependencies are inferred from the claim text.