BOYD LEE BUTLER
Pilots at Siesta Hl Ct, Sandy, UT

6622821, Sep 23, 2003

Aug 31, 2001

09/943819

Boyd L. Butler - Sandy UT 84093

F01N 108

181270, 181268, 181269, 181271, 181272, 138109, 138177, 138128

A flattened acoustic muffler for use on stock cars. The muffler mounts to the standard exhaust system pipes and to the lower chassis of the car, routing exhaust gasses to one or both sides of the car while providing improved ground clearance between the exhaust pipe and the surface of the race track. The muffler contains a plurality of spiral acoustic traps, which attenuate exhaust noise while producing little additional backpressure.

6283162, Sep 4, 2001

Sep 9, 1999

9/392398

Boyd L. Butler - Sandy UT

F16L 900

138177

A flattened single or dual inlet boom tube exhaust pipe for use on race cars, such as stock cars which race on oval tracks, which mounts to the standard exhaust system pipes and to the lower frame or chassis of the car, and which routes exhaust gasses to one or both sides of the car while providing improved ground clearance between the exhaust pipe and the surface of the race track. The construction of the boom tube exhaust pipes comprise single or dual slightly flattened circular inlets which lead exhaust gasses into a flattened profile body constructed of formed sheet metal half shells, with the inlets at or above the lower plane of the body. One or more formed sheet metal structural ribs extend through the body and into the inlets and one or more spacer ribs support the half shells within the body. The boom tube exhaust pipes can be made with internal baffles or spiral acoustic traps so as to also be an acoustic muffler. Exhaust systems of the invention comprise a pair of exhaust pipe header assemblies, a pair of secondary exhaust pipes, and one dual inlet or two single inlet boom tube exhaust pipes.

8256571, Sep 4, 2012

Oct 29, 2010

12/916216

Boyd L. Butler - Sandy UT, US

F01N 1/08

181268, 181270, 181275

A muffler for raising the audible pitch of an internal combustion engine's exhaust note that includes an enclosed case having an inlet and an outlet, and a plurality of flow-directing components which are adapted to subdivide an inlet flow into a plurality of interior flows, including a first interior flow providing the shortest flow length through the muffler between the inlet and the outlet, a second interior flow having a flow length at least about twice the length of the first interior flow, and one or more intermediate flows following by-pass passages to split off from the second interior flow between the inlet and the outlet and having flow lengths between the flow lengths of the first and second flows.

8186386, May 29, 2012

Oct 23, 2009

12/604666

Boyd L. Butler - Sandy UT, US

F16L 9/18

138115, 138117, 138107, 138177, 180309

A modular exhaust tube system for directing exhaust gases from an internal combustion engine. The exhaust tube system includes first and second elongate half-shells, with each half-shell comprising an elongate thin-wall body having a substantially U-shaped cross-sectional profile with a constant sideways opening along the length of the body. The exhaust tube system also includes a center brace having dimensions which span the length and height of the sideways openings. The sideways openings of the first and second half-shells are coupled together around the center brace to form a flattened elongate exhaust tube having an inlet end and an outlet end for directing exhaust gases from the internal combustion engine. In one aspect the first and second half-shells are selected from a group of interchangeable and modular half-shells having different substantially U-shaped cross-sectional profiles that are reversible top-to-bottom and end-to-end.

8181732, May 22, 2012

Dec 31, 2008

12/347757

Boyd L. Butler - Sandy UT, US

B60K 13/00, B60K 13/04

180309, 2851321, 181238, 181239

A Y-pipe splitter for use on race cars, such as stock cars which race on oval tracks and sports cars which race on road course tracks, mounts to the lower frame or chassis of the car, and routes exhaust gasses from a Y-pipe assembly to a pair of tail pipes extending to the side of the car while providing improved ground clearance. The Y-pipe splitter includes first and second splitter tail pipe sections of a generally flattened oval cross-section with a longitudinally beveled inlet portions connectable to an outlet of the Y-pipe assembly and an outlet portion connectable to one of the tail pipes. The beveled inlet portions of the splitter tail pipe sections are affixed together along a respective edge of each thereof so as to merge together with respective centerlines thereof at an oblique angle to a single inlet opening which is connectable to the outlet opening of the Y-pipe assembly by affixing thereto.

8181671, May 22, 2012

Sep 15, 2009

12/560219

Boyd L. Butler - Sandy UT, US

F15D 1/04

138 39, 138 37, 138 42, 181270, 181258

An elongate flow tube having an interior cross-section surrounding a long axis, an inlet end for receiving a fluid flow and an outlet end for discharging the fluid flow, and a diffuser plate spanning the interior cross-section to separate the flow tube into an inlet chamber and an outlet chamber. The diffuser plate includes a plurality of apertures formed therein for directing the fluid flow from the inlet chamber to the outlet chamber. Furthermore, the diffuser plate is orientated longitudinally at a shallow angle with respect to the long axis of the flow tube to provide an indeterminate pulsation reflective surface, with the inlet chamber gradually decreasing in cross-sectional area and the outlet chamber gradually increasing in cross-sectional area across the length of the flow tube.

5951030, Sep 14, 1999

Aug 15, 1997

8/915524

Boyd L. Butler - Sandy UT

B62D 1700

280 86751

A bolt-on apparatus for conveniently modifying the camber curves of double wishbone suspensions on motor vehicles, for increased cornering performance includes an adaptive spacer to increase the distance between the upper and lower ball joint pivots of the wishbone control arms. The increased distance between the ball joint pivots changes the camber curve and reverses the position of the instant center point, about which the tires laterally pivot, or lean, at any given instant. This allows the tires to lean in the proper direction to maintain contact with the surface of the road while the vehicle frame rolls toward the outside of the turn resulting in improved tire wear and cornering traction.

5824972, Oct 20, 1998

May 13, 1997

8/855826

Boyd L. Butler - Sandy UT

F01N 112

181279

A muffler for reducing acoustic noise contained in a gas flow, such as created by internal combustion engines, air compressors, and blower manifolds. The muffler consists of a conventional sheet metal casing which has an inlet and an outlet at opposite ends thereof. A flow of gas containing acoustic noise flows from inlet to outlet. A plurality of spiral acoustic traps, each of which extend from bottom to top of the casing, have a central axis positioned perpendicular to the gas flow. An opening in each spiral acoustic trap extends into the gas flow to divert some gas into the trap, wherein the gas flows in a circular path so as to degrade and randomize the sound waves into heat, by utilizing a circular mixing process with increased gas retention time. Gas is drawn out of the acoustic trap through a series of vent holes in the acoustic trap on the back side of the acoustic trap opposite the opening, by utilizing a venturi effect created by part of the inlet gas flow which is split off into a peripheral gas flow to flow around the acoustic trap through a constricted area just ahead of the vent holes, created by the acoustic trap and the adjacent casing wall or adjacent trap, so as to create a low pressure zone at the vent holes to continuously draw gas out of the acoustic trap. The acoustic traps may be oriented in a single or multiple linearly extending staggered groups, with in-line or offset inlets and outlets.

8104572, Jan 31, 2012

Jan 22, 2010

12/692543

Boyd L. Butler - Sandy UT, US

F01N 1/00, F01N 1/08, F01N 1/12

181274, 181264, 181270, 181279, 181281

A muffler for attenuating acoustic noise in a gas flow which includes a casing having an inlet and an outlet, such that the gas flow passes through the casing from the inlet to the outlet. The muffler also includes an acoustic trap disposed within the casing and which spans the distance between opposing top and bottom walls of the casing. The acoustic trap further comprises a first arcuate deflector having a concave frontside surface configured to direct the gas flow from the inlet through a first segment of an expanding spiral revolution, and one or more second arcuate deflectors which are radially offset from the first arcuate deflector and configured to direct a portion of the inlet gas flow through a remainder segment of the expanding spiral revolution.

8083026, Dec 27, 2011

Jun 7, 2010

12/795543

Boyd L. Butler - Sandy UT, US

F01N 1/08

181264, 181212, 181228, 181229, 181240, 181268

A muffler for attenuating acoustic noise in a gas flow that includes a casing having a substantially-rectangular cross-section with an inlet opening in an inlet end and an outlet opening in an outlet end, so that a gas flow containing acoustic noise passes from the inlet opening to the outlet opening. The muffler also includes a V-shaped sound diffuser disposed within the casing and spanning the distance between opposing top and bottom walls of the casing. The sound diffuser comprises a pair of elongate leg plates having base ends attached to the outlet end on opposite sides of the outlet opening, and tip ends merged into an apex that is aligned with the inlet opening. Each leg plate has a plurality of apertures formed therein, and the apex splits the inlet gas flow into two side flows, with each side flow passing through the plurality of apertures in one of the leg plates to reach the outlet opening.