U.S. patent application number 11/348397 was filed with the patent office on 2007-08-09 for tail pipe cover.
Invention is credited to Pamela J. Champney, Peter A. Champney.
Application Number | 20070181362 11/348397 |
Document ID | / |
Family ID | 38332850 |
Filed Date | 2007-08-09 |
United States Patent
Application |
20070181362 |
Kind Code |
A1 |
Champney; Peter A. ; et
al. |
August 9, 2007 |
Tail pipe cover
Abstract
A cap unit is mounted on the exhaust end of a tail pipe of a
motor vehicle and includes two tubular sections connected by a
conical transition section. One tubular section is mounted on the
tail pipe adjacent to the exhaust end of the tail pipe and a flap
is hingedly mounted on an end of the second section. The flap is
mounted to hang down when the cap unit is mounted on the tail pipe
so that gravity biases the cap into an exhaust end covering
position and exhaust gases flowing out of the tail pipe will move
the flap out of the covering position against the bias of gravity.
The cap unit provide aesthetic appeal to the tail pipe.
Inventors: |
Champney; Peter A.;
(Antioch, IL) ; Champney; Pamela J.; (Antioch,
IL) |
Correspondence
Address: |
SUNG I. OH, PROFESSIONAL LAW CORPORATION
710 QUAIL VALLEY LANE
WEST COVINA
CA
91791
US
|
Family ID: |
38332850 |
Appl. No.: |
11/348397 |
Filed: |
February 6, 2006 |
Current U.S.
Class: |
181/227 |
Current CPC
Class: |
F01N 13/20 20130101;
F01N 2260/022 20130101 |
Class at
Publication: |
181/227 |
International
Class: |
F01N 7/08 20060101
F01N007/08 |
Claims
1. A tail pipe exhaust end cap for use on an exhaust end of a tail
pipe of an automobile, the end cap comprising: A) a first tubular
section which includes (1) a first end, (2) a second end, (3) a
longitudinal axis that extends between the first end of the first
tubular section and the second end of the first tubular section,
(4) an inner surface having an inner diameter, the inner diameter
of the first tubular section being slightly greater than an outer
diameter of a tail pipe of an automobile so the first tubular
section can be accommodated on the tail pipe near an exhaust end of
the tail pipe, and (5) an outer surface having an outer diameter;
B) a second tubular section which includes (1) a first end, (2) a
second end, (3) a longitudinal axis that extends between the first
end of the second tubular section and the second end of the second
tubular section, (4) an inner surface of the second tubular section
having an inner diameter, the inner diameter of the second tubular
section being greater than the outer diameter of the first tubular
section, (5) an outer surface having an outer diameter, and (6) the
first and second sections being one piece with each other; C) a
conical transition section connecting the second end of the first
tubular section to the first end of the second tubular section; D)
a plurality of fasteners on the first tubular section near the
first end of the first tubular section, the fasteners being adapted
to mount the first tubular section on the tail pipe; E) a hinge
element mounted on the second end of the second tubular section;
and F) a cover flap mounted on the second tubular section by the
hinge element to move between a tail pipe covering position and a
tail pipe uncovering position, the cover flap being mounted so that
in the tail pipe covering position, the cover flap hangs down from
the hinge element so gravity biases the cover flap toward the tail
pipe covering position and gases flowing out of the tail pipe lift
the flap against the bias of gravity toward the tail pipe
uncovering position.
2. A tail pipe exhaust end cap for use on an exhaust end of a tail
pipe of an automobile, the end cap comprising: A) a first tubular
section which includes an inner surface having an inner diameter
which is slightly greater than an outer diameter of a tail pipe of
an automobile so the first tubular section can be accommodated on
the tail pipe near an exhaust end of the tail pipe, and an outer
surface having an outer diameter; B) a second tubular section which
includes an outer surface having an outer diameter which is greater
than the outer diameter of the first tubular section; C) a conical
transition section connecting the first and second sections
together; D) the second section being one piece with the first
section and the transition section; E) a plurality of fasteners on
the first tubular section, the fasteners being adapted to mount the
first tubular section on the tail pipe; F) a binge element mounted
on the second tubular section; and G) a cover flap mounted on the
second tubular section by the hinge element to move between a tail
pipe covering position and a tail pipe uncovering position, the
cover flap being mounted so that in the tail pipe covering
position, the cover flap hangs down from the hinge element so
gravity biases the cover flap toward the tail pipe covering
position and gases flowing out of the tail pipe lift the cover flap
against the bias of gravity toward the tail pipe uncovering
position.
3. A tail pipe exhaust end cap for use on an exhaust end of a tail
pipe of an automobile, the end cap consisting of: a cover flap
hingedly coupled to the tail pipe of the motor vehicle in a
horizontal manner, the cover flap adapted to move between a tail
pipe covering position and a tail pipe uncovering position, the
cover flap being mounted so that in the tail pipe covering
position, the flap hangs down, and in the tail pipe uncovering
position, gases flowing out of the tail pipe lift the cover flap up
to allow the gases to flow out of the tail pipe.
Description
TECHNICAL FIELD OF THE INVENTION
[0001] The present invention relates to the general art of motor
vehicles, and to the particular field of accessories for motor
vehicles.
BACKGROUND OF THE INVENTION
[0002] Generally the exhaust systems of internal combustion engines
particularly of motor vehicles have hitherto comprised the exhaust
manifold which collects the exhaust gases from the cylinders of the
engine, a muffler forming an acoustic damping device connected to
this manifold, e.g. via an exhaust pipe, and a tail pipe connected
to the muffler and discharging the exhaust gases into the
atmosphere.
[0003] A conventional tail pipe adapted for use on a standard
vehicle is made from a metal material, and is made to guide waste
gas produced by the engine and the cylinder into the air. Typical
prior art tail pipes are purely functional and not aesthetically
pleasing.
SUMMARY OF THE INVENTION
[0004] In one form of this invention, an end cap is adapted to be
attached to the exhaust end of the tail pipe of numerous sizes,
types, and kinds of vehicles, normally an automobile or truck, and
is secured to an outer end of the tail pipe as by welding, clamps,
or the like and is positioned to be extended below and adjacent a
rear fender portion of the subject vehicle.
[0005] The end cap of the present invention can be utilized on
motorcycles, motor boats, or any place in which it is desired to
have an aesthetically pleasing tail pipe member extended rearwardly
therefrom to provide an attractive appearance and cooling
efficiency in a subject exhaust pipe system.
[0006] Other systems, methods, features, and advantages of the
invention will be, or will become, apparent to one with skill in
the art upon examination of the following figures and detailed
description. It is intended that all such additional systems,
methods, features, and advantages be included within this
description, be within the scope of the invention, and be protected
by the following claims.
BRIEF DESCRIPTION OF THE DRAWING FIGURES
[0007] The invention can be better understood with reference to the
following drawings and description. The components in the figures
are not necessarily to scale, emphasis instead being placed upon
illustrating the principles of the invention. Moreover, in the
figures, like referenced numerals designate corresponding parts
throughout the different views.
[0008] FIG. 1 is a rear end elevational view of a motor vehicle
having a tail pipe exhaust end cap embodying the present
invention.
[0009] FIG. 2 is a perspective view of a tail pipe exhaust end cap
embodying the present invention in a tail pipe covering
condition.
[0010] FIG. 3 is a perspective view of a tail pipe exhaust end cap
embodying the present invention in a tail pipe uncovering
condition.
DETAILED DESCRIPTION OF THE INVENTION
[0011] Referring to the figures, it can be understood that the
present invention is embodied in a tail pipe exhaust end cap 10 for
use on an exhaust end 14 of a tail pipe 16 of a motor vehicle
20.
[0012] End cap 10 comprises a first tubular section 24 which
includes a first end 26, a second end 28 and a longitudinal axis 30
that extends between first end 26 and second end 28. First section
24 further includes an inner surface 30 having an inner diameter
34. Inner diameter 34 of the first tubular section is slightly
greater than outer diameter 36 of tail pipe 16 so the first tubular
section can be accommodated on the tail pipe near exhaust end 38 of
the tail pipe. First section 24 further includes an outer surface
40 having an outer diameter 42. The end cap 10 is mounted to the
tail pipe 16 in a substantially horizontal manner.
[0013] A second tubular section 50 includes a first end 52, a
second end 54 and a longitudinal axis 56 that extends between first
end 52 and second end 54 of the second tubular section. An inner
surface 58 of the second tubular section has an inner diameter 60
which is greater than outer diameter 42 of the first tubular
section, and an outer surface 62 having an outer diameter 64.
[0014] A conical transition section 70 connects second end 28 of
the first tubular section to first end 52 of the second tubular
section. The first and second sections are one piece with each
other so the overall end cap is quite strong and easy to
manufacture.
[0015] A plurality of fasteners, such as set screw 80, are located
on first tubular section 24 near first end 26 of the first tubular
section, and are adapted to mount the first tubular section on the
tail pipe as shown in FIGS. 2 and 3. A hinge element 90 is mounted
on second end 54 of second tubular section 50.
[0016] A cover flap 94 is mounted on second tubular section 50 by
the hinge element to move between a tail pipe covering position
shown in FIG. 2 and a tail pipe uncovering position shown in FIG.
3. The flap is mounted so that in the use position shown in FIGS. 2
and 3, the flap hangs down from the hinge element whereby gravity
will bias the flap into the tail pipe covering position. When
exhaust gases flow out of the tail pipe, these gases generate
sufficient pressure to lift the flap from the tail pipe covering
position toward the tail pipe uncovering position. This allows the
flap to cover the tail pipe when the engine is not in use so dirt
and debris will not get into the tail pipe but will not interfere
with the flow of exhaust gases out of the engine during operation
of the engine.
[0017] The end cap 10 can be formed in various colors and patterns
so enhance the overall aesthetic appearance of the tail pipe. The
end cap is easily mounted on the tail pipe so it can be easily
retrofitted as desired or removed if necessary. The flap moves so
operation of the engine is not affected by the presence of the end
cap.
[0018] While various embodiments of the invention have been
described, it will be apparent to those of ordinary skill in the
art that many more embodiments and implementations are possible
within the scope of this invention. Accordingly, the invention is
not to be restricted except in light of the attached claims and
their equivalents.
* * * * *