Portable, free-standing exhaust system

• US 9,719,680 B2
• Filed: 05/02/2014
• Issued: 08/01/2017
• Est. Priority Date: 05/02/2014
• Status: Active Grant

• Current Assignee: Todd Staller
• Original Assignee: Todd Staller
• Inventors: Staller, Todd
• Primary Examiner(s): McAllister, Steven B
• Assistant Examiner(s): COTOV, JONATHAN J
• Application Number:
  US14/268,807
• Publication Number:
  US 20150316258A1
• Time in Patent Office: 1,187 Days
• Field of Search: 454 1
• CPC Class Codes: F23J 11/08 for portable apparatus
• CPC Class Codes: F23J 2213/20 Joints; Connections
• CPC Class Codes: F23J 2213/203 between stack/duct and combustion apparatus

Abstract

Devices, systems, and methods for portable, free-standing exhaust systems for exhausting gases from internal combustion type engines, including portable generators. Portable, free-standing exhaust system comprising a plurality of metal exhaust stack sections, forming a continuous hollow column; a housing stand with legs holding the column; a hanger bracket connecting the housing stand and a connector tube, including a separation space, which is connected to an exhaust pipe for exhausting gases.

Claims

1. A system for exhausting gases from one or more generators or engines, comprising:

a plurality of metal exhaust stack sections, slidably joined and in fluid communication, one to another, to form a continuous hollow column having an upper end with an opening and a lower end with an opening;

a metal stand comprising a housing having a top, a bottom, an interior channel connecting an opening on the top to an opening on the bottom, the top opening configured to receive internally the lower end of the continuous hollow column and support the column in an upright vertical position, and three or more legs attached to the exterior of the housing that support the housing;

a hanger bracket fixed to and extending below the bottom opening of the housing; and

a metal connector tube having a first end adapted to collect exhaust gases from one or more exhaust pipes on the one or more generators or engines, and a second end releasably secured to the hanger bracket and forming a separation space between the second end and the opening on the bottom of the housing;

wherein the system is configured so the exhaust gases from the one or more exhaust pipes flow into and through the connector tube and into and through the separation space and into the bottom opening of the housing in such a manner as to form a vacuum drawing ambient air into the separation space to mix with and cool the exhaust gases flowing through the channel and into and through the continuous hollow column for cooling and exhaustion from the upper end of the continuous hollow column; and

each metal exhaust stack section has an outer surface that is grooved, serrated, ribbed, fluted/scalloped, or notched to increase the outer circumferential surface area of each exhaust stack section to displace heat.

2. The system of claim 1, wherein the system is portable and free-standing, and each leg is configured to be adjustable to be raised or lowered to a desired height and is connected to the housing by a way of a hinge so the leg is collapsible.

3. The system of claim 2, further comprising feet fixed to the end of each leg, which feet are configured to be releasably anchored to the ground.

4. The system of claim 3, wherein each metal exhaust stack section, the housing and the legs are made from aluminum.

5. The system of claim 4, wherein the housing has a tripod body made from a cylindrical aluminum tube.

6. The system of claim 1, wherein each metal exhaust stack section has a top, a bottom, and a fitted sleeve extending from the top configured to slide into the bottom of another metal exhaust stack section positioned above it to form the continuous hollow column.

7. The system of claim 1, wherein each metal exhaust stack surface is a ribbed cylindrical aluminum tube.

8. The system of claim 1, wherein the separation space between the second connector tube end and the bottom opening is selected from the group consisting of about 0.25, 0.5, 0.75, 1.0, 1.25, 1.5, 1.75, 2.0, and 2.25 inches.

9. The system of claim 1, wherein the one or more generators or engines is a portable generator or an engine attached to a recreational vehicle, camper, motor home, house, or building.

10. The system of claim 1, wherein the first connector tube end is fitted with a flared nipple.

11. The system of claim 1, wherein the first connector tube end is releasably attached to one end of a flexible tube and the other end of the flexible tube is fitted with a flared nipple.

12. The system of claim 1, wherein the first connector tube end is configured to split into two or more ends each adapted to collect exhaust gases from an exhaust pipe.

13. The system of claim 1, wherein the connector tube is chosen from a flexible tube, a straight rigid pipe, an angled or bent rigid pipe, an L-shaped pipe, and a curved rigid pipe, and wherein the connector tube is made from aluminum, galvanized steel, or stainless steel.

14. The system of claim 13, wherein the connector tube is a galvanized stainless steel pipe or an aluminum pipe configured so the first connector tube end is positioned 90°

relative to the second connector tube end.

15. The system of claim 1, wherein the first connector tube end attaches directly to the one or more exhaust pipes, or is spaced at a distance from the one or more exhaust pipes, or is configured to engage an adapter that slides over and is clamped onto the one or more exhaust pipes.

16. The system of claim 1, wherein:

each metal exhaust stack section is a cylindrical ribbed aluminum tube, having a top, a bottom, and a fitted sleeve extending from the top configured to slide into the bottom of another exhaust stack section positioned above it;

the housing comprises an aluminum tube tripod body with three adjustable aluminum legs and having a top opening and a bottom opening, the top opening configured to receive internally the lower end of the column and support the column in an upright vertical position;

the connector tube is a steel pipe with a 90°

bend, the first connector tube end has a flared nipple attached to it, and the second connector tube end is configured to insert into and be secured to the hanger bracket by a pin; and

the separation space is about 1.0 inch.

17. The system of claim 1, further comprising:

a first metal support tube, a second metal support tube, and a metal adaptor tube;

wherein

the connector tube is a flexible metal tube, and

the first metal support tube releasably attaches at one end to the hanger bracket and releasably attaches at the other end to one end of the flexible metal, and the other end of the flexible metal tube releasably attaches to one end of the second metal support tube and the other end the second metal support tube releasably attaches to a metal adaptor that releasably attaches to the exhaust pipe.

18. A system for exhausting gases from one or more generators or engines, comprising:

one or more stack sections forming a continuous hollow column having an upper end with an opening and a lower end with an opening;

a metal stand comprising a housing having a top, a bottom, an interior channel connecting an opening on the top to an opening on the bottom, the top opening configured to receive internally the lower end of the continuous hollow column and support the column in an upright vertical position, and a plurality of legs attached to the exterior of the housing;

a hanger bracket fixed to and extending below the lower end of the lowermost stack section;

a metal connector tube having a first end adapted to collect exhaust gases from one or more exhaust pipes on one or more generators or engines, and a second end secured to the hanger bracket and forming a separation space between the second end and the opening on the lower end of the column;

wherein the system is configured so the exhaust gases from the one or more exhaust pipes flow into and through the connector tube and into and through the separation space and into the opening on the lower end of the column in such a manner as to form a vacuum drawing ambient air into the separation space to mix with and cool the exhaust gases as they flow through the continuous hollow column for cooling and exhaustion from the upper end of the continuous hollow column; and

each exhaust stack section has an outer surface that is smooth, grooved, serrated, ribbed, fluted/scalloped, or notched to increase the outer circumferential surface area of each exhaust stack section to displace heat.

19. A method of exhausting gases from one or more generators or engines, comprising:

attaching a plurality of exhaust stack sections to each other so the stack sections are slidably joined and in fluid communication, one to another, to form a continuous hollow exhaust column having an upper end with an opening and a lower end with an opening;

attaching the continuous hollow exhaust column to a metal stand having a housing with a top, a bottom, an interior channel connecting an opening on the top to an opening on the bottom, and three or more legs attached to the exterior of the housing that support the housing in an upright vertical position, wherein the lower end of the continuous hollow exhaust column is inserted into the top opening of the housing and supported by the housing in an upright vertical position;

attaching a metal connector tube to a hanger bracket fixed to the housing and extending below the bottom opening of the housing in such a manner to form a separation space between the connector tube and the bottom opening of the housing;

attaching the other end of the metal connector tube to an exhaust pipe from one or more generators or engines; and

venting exhaust gases from the exhaust pipe into and through the connector tube, the separation space, the housing, and the stack sections, whereby the exhaust gases flowing through the separation space and into the bottom opening of the housing form a vacuum drawing ambient air into the separation space to mix with and cool the exhaust gases flowing through the channel and into and through the continuous hollow column for cooling and exhaustion from the upper end of the continuous hollow column.

20. The method of claim 19, wherein each exhaust stack section is made of metal and has an outer surface that is grooved, serrated, ribbed, fluted/scalloped, or notched to increase the outer circumferential surface area of each exhaust stack section to displace heat.

21. A method of exhausting gases from one or more generators or engines, comprising:

attaching a plurality of exhaust stack sections to each other so the stack sections are slidably joined and in fluid communication, one to another, to form a continuous hollow exhaust column having an upper end with an opening and a lower end with an opening;

attaching a coupler tube to the lower end of the continuous hollow exhaust column in such a manner as to form a separation space between the coupler tube and the opening on the lower end of the continuous hollow exhaust column;

attaching the continuous hollow exhaust column to a metal stand having a housing with a top, a bottom, an interior channel connecting an opening on the top to an opening on the bottom, and three or more legs attached to the exterior of the housing that support the housing in an upright vertical position, wherein the lower end of the continuous hollow exhaust column having the coupler tube attached thereto is inserted into the top opening of the housing and slid through the channel and extends from the bottom opening of the housing and the remainder of the continuous hollow exhaust column is supported by the housing in an upright vertical position;

attaching a metal connector tube to other end of the coupler tube;

attaching the other end of the metal connector tube to an exhaust pipe from one or more generators or engines; and

venting exhaust gases from the exhaust pipe into and through the connector tube, the coupler tube, the separation space, the housing, and the stack sections, whereby the exhaust gases flowing through the separation space and into the bottom opening of the continuous hollow exhaust column form a vacuum drawing ambient air into the separation space to mix with and cool the exhaust gases flowing through the continuous hollow column for cooling and exhaustion from the upper end of the continuous hollow column.

22. The method of claim 21, wherein each exhaust stack section is made of metal or plastic and has an outer surface that is grooved, serrated, ribbed, fluted/scalloped, or notched to increase the outer circumferential surface area of each exhaust stack section to displace heat.