Information
-
Patent Grant
-
6352429
-
Patent Number
6,352,429
-
Date Filed
Tuesday, June 13, 200024 years ago
-
Date Issued
Tuesday, March 5, 200222 years ago
-
Inventors
-
Original Assignees
-
Examiners
- Lazarus; Ira S.
- Cocks; Josiah C.
Agents
-
CPC
-
US Classifications
Field of Search
US
- 431 153
- 431 144
- 431 277
- 431 274
- 431 273
- 431 255
- 431 138
- 431 267
- 431 276
-
International Classifications
-
Abstract
A safety lighter with improved rotary wheel hoods surrounding the striker wheel. The hoods must be urged downwardly and simultaneously rotated to engage and rotate the striker wheel. By varying the arrangement of the annular inner and outer surfaces of the hoods having either smooth surfaces or protuberances thereon with the annular unrecessed lateral portions of the striker wheel having either smooth surfaces or protuberances thereon, a multiplicity of embodiments may be achieved. Each embodiment requires a varying level of downward pressure and rotational forces to cause the lighter to spark and ignite.
Description
BACKGROUND OF THE INVENTION
The present invention relates to the field of lighters, such as cigarette lighters. More particularly the invention relates to safety lighters having rotary striker wheels. U.S. Pat. No. 5,769,625, which is incorporated herein by reference for all purposes, discloses a state of the art safety lighter with an improved striker wheel and striker wheel mounting frame. The lighter has an igniter having a striker wheel which rotates about an axis in response to force applied to the wheel by a user's finger. The annular recessed center portion of the striker wheel's outer annular surface has protuberances formed thereon (or grooves formed therein), while the annular unrecessed lateral portions of the striker wheel's outer annular surface are smooth. Further, the striker wheel is mounted to the lighter in slots. The striker wheel is pressed from a first position having insufficient spring force to cause the lighter flint to spark when the striker wheel is rotated into a second position having sufficient spring force to cause the lighter flint to spark when the striker wheel is rotated.
While the depression of the striker wheel from a first position to a second position is an effective safety mechanism, the present invention provides an improvement whereby the rotoring striker wheel remains in the same position and rotates about the same horizontal axis. There is no up or down displacement of the striker wheel. Rather, the present invention utilizes rotary hoods which are displaced from a first position to a second position to engage the outer edges of the striker wheel to translate rotary motion to the wheel and ignite the lighter.
SUMMARY OF THE INVENTION
The present invention is a lighter comprising an igniter having a striker wheel which rotates about an axis in response to force applied to the wheel by a user's thumb (or any other finger or hand part). The striker wheel has an outer annular surface having an annular recessed center portion and annular unrecessed lateral portions.
The annular recessed portion has a rough surface with protuberances formed thereon (or grooves formed therein). The annular unrecessed lateral portions of the striker wheels may be smooth or have protuberances thereon, depending upon the embodiment.
Rotary wheel hoods circumferentially surround the annular unrecessed lateral portions of the striker wheel. The hoods have inner and outer annular surfaces. The hoods also have a central opening formed therethrough to rotatably receive the central axle of the striker wheel. The central opening has a diameter greater than the diameter of the central axle. Thus, the rotary wheel hoods are movable from a first position where the inner surface of the hoods do not contact the striker wheel to a second position where the inner surface of the hoods engage the striker wheel along the annular unrecessed lateral portions and impart rotational movement to the striker wheel to create sparks. The sparks ignite the lighter when the igniter is activated. The inner and outer surfaces of the hoods may be smooth or have protuberances thereon, again, depending upon the embodiment of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1A
is an exploded view of the safety lighter of the present invention showing (a) a striker wheel with protuberances on the outer portions and (b) a striker wheel having a smooth surface on the lateral portions. The rotary wheel hoods have smooth inner and outer surfaces.
FIG. 1B
is an exploded view of the safety lighter of the present invention showing (a) a striker wheel with protuberances on the outer portions and (b) a striker wheel having a smooth surface on the lateral portions. The rotary wheel hoods have smooth inner surfaces and protuberances on the outer surface.
FIG. 1C
is an exploded view of the safety lighter of the present invention showing (a) a striker wheel with protuberances on the outer portions and (b) a striker wheel having a smooth surface on the lateral portions. The rotary wheel hoods have protuberances on the inner surface and a smooth outer surface.
FIG. 2A
is an exploded detail view of that portion of the lighter shown in FIG.
1
A and more clearly shows the inventive aspects of the present invention.
FIG. 2B
is an exploded detail view of that portion of the lighter shown in FIG.
1
B and more clearly shows the inventive aspects of the present invention.
FIG. 2C
is an exploded detail view of that portion of the lighter shown in FIG.
1
C and more clearly shows the inventive aspects of the present invention.
FIG. 3A
a
is an assembled perspective detailed view of the portion of the lighter shown in
FIG. 2A
having protuberances on the lateral portion of the striker wheel showing no pressure being applied to the smooth inner and outer surfaces of rotary wheel hoods.
FIG. 3A
b
is an assembled perspective detailed view of the portion of the lighter shown in
FIG. 2A
having smooth lateral portion surfaces of the striker wheel showing no pressure being applied to the smooth inner and outer surfaces of the rotary wheel hoods.
FIG. 3B
a
is an assembled perspective detailed view of the portion of the lighter shown in
FIG. 2B
having protuberances on the lateral portions of the striker wheel showing no pressure being applied to the rotary wheel hoods having smooth inner surfaces and protuberances on the outer surfaces.
FIG. 3B
b
is an assembled perspective detailed view of the portion of the lighter shown in
FIG. 2B
having smooth surfaces on the lateral portion of the striker wheel showing no pressure being applied to the rotary wheel hoods having smooth inner surfaces and protuberances on the outer surfaces.
FIG. 3C
a
is an assembled perspective detailed view of the portion of the lighter shown in
FIG. 2C
having protuberances on the lateral portions of the striker wheel showing no pressure being applied to the rotary wheel hoods having protuberances on the inner surfaces and smooth outer surfaces.
FIG. 3C
b
is an assembled perspective detailed view of the portion of the lighter shown in
FIG. 2C
having smooth surfaces on the lateral portions of the striker wheel showing no pressure being applied to the rotary wheel hoods having protuberances on the inner surfaces and smooth outer surfaces.
FIG. 4A
a
is a partial side elevation view of the inventive aspects of the invention of
FIG. 3A
a
, partially broken away and sectioned.
FIG. 4A
b
is a partial side elevation view of the inventive aspects of the invention of
FIG. 3A
b
, partially broken away and sectioned.
FIG. 4B
a
is a partial side elevation view of the inventive aspects of the invention of
FIG. 3B
a
, partially broken away and sectioned.
FIG. 4B
b
is a partial side elevation view of the inventive aspects of the invention of
FIG. 3B
b
, partially broken away and sectioned.
FIG. 4C
a
is a partial side elevation view of the inventive aspects of the invention of
FIG. 3C
a
, partially broken away and sectioned.
FIG. 4C
b
is a partial side elevation view of the inventive aspects of the invention of
FIG. 3C
b
, partially broken away and sectioned.
FIG. 5A
a
is the view shown in
FIG. 3A
a
but with pressure being applied to the rotary wheel hoods.
FIG. 5A
b
is the view shown in
FIG. 3A
b
but with pressure being applied to the rotary wheel hoods.
FIG. 5B
a
is the view shown in
FIG. 3B
a
but with pressure being applied to the rotary wheel hoods.
FIG. 5B
b
is the view shown in
FIG. 3B
b
but with pressure being applied to the rotary wheel hoods.
FIG. 5C
a
is the view shown in
FIG. 3C
a
but with pressure being applied to the rotary wheel hoods.
FIG. 5C
b
is the view shown in
FIG. 3C
b
but with pressure being applied to the rotary wheel hoods.
FIG. 6A
a
is the side view shown in
FIG. 4A
a
but with pressure being applied to the rotary wheel hoods.
FIG. 6A
b
is the side view shown in
FIG. 4A
b
but with pressure being applied to the rotary wheel hoods.
FIG. 6B
a
is the side view shown in
FIG. 4B
a
but with pressure being applied to the rotary wheel hoods.
FIG. 6B
b
is the side view shown in
FIG. 4B
b
but with pressure being applied to the rotary wheel hoods.
FIG. 6C
a
is the side view shown in
FIG. 4C
a
but with pressure being applied to the rotary wheel hoods.
FIG. 6C
b
is the side view shown in
FIG. 4C
b
but with pressure being applied to the rotary wheel hoods.
DETAILED DESCRIPTION OF THE INVENTION
The preferred embodiment of the invention is illustrated in the attached drawings which are referred to herein. The same reference numeral will be used to identify identical elements throughout the drawings.
FIGS. 1A-1C
illustrate components commonly mounted on a lighter body
601
in which lighter fuel is contained. Such components include nozzle
608
having a head and a downwardly extending tube disposed toward the front of the lighter body
601
, flame adjustment wheel
607
and thumb adjustment actuator
615
which is connected to the flame adjustment wheel, mounting frame
614
, windshield
621
, nozzle actuating lever
616
, and an igniter comprising flint spring
617
, flint
618
, and striker wheel
620
.
The tube of the nozzle is connected in communication relationship with the interior of the lighter body where, as mentioned above, fuel is stored. The nozzle may be moved from a lower position to an upper position. When the nozzle is in its lower position, fuel cannot be ejected from it. When the nozzle is in the upper position, fuel is ejected from it. In normal operation, a lighter's striker wheel is rotated and the rear of lever
616
is depressed virtually simultaneously, which causes the nozzle to be raised and a spark to be created when the teeth of the striker wheel fictionally engage the flint
618
. The spark ignites the fuel and a flame is maintained so long as the rear of the lever is continued to be depressed downward.
Frame
614
is mounted on the lighter body with hollow frame stem
614
D inserted in hole
601
A of the lighter body. Nozzle actuating lever
616
is mounted on the frame with pivots
616
A inserted into slots
614
B. Striker wheel
620
is formed in the shape of a wheel having an annular center portion
619
of its outer annular surface recessed relative to the annular lateral portions
620
A of the striker wheel's outer annular surface. The striker wheel is mounted on frame
614
with the wheel's axle
620
B fitting into holes
614
C. Flint
618
and flint spring
617
are mounted in hole
614
A of the mounting frame in the conventional fashion so as to urge the flint
618
toward protuberances
619
A which are disposed on the annular recessed surface
619
of the striker wheel.
The protuberances
619
A on annular recessed center portion
619
are a series of saw-tooth-shaped teeth, each having a first surface which is substantially perpendicular to the tangent of the circle from which the protuberances extend. This first surface faces in the clockwise direction as the lighter is viewed from the side shown in
FIG. 4A
a
. Each tooth also has a second surface, which slopes toward the counter-clockwise direction of the wheel when the lighter is viewed from its side with the front (or nozzle) end of the lighter toward the left as shown in
FIG. 4A
a.
FIGS. 1A-1C
illustrate that same general arrangement may be utilized in each embodiment of the invention. The principal difference with each embodiment relates to the rotary wheel hoods
922
and the annular unrecessed lateral portions
620
A of striker wheel
620
.
Turning now to the inventive rotary wheel hoods
922
, it may be seen that the hoods are cap-like shrouds which circumferentially surround the annular unrecessed lateral portions
620
A of the striker wheel
620
. The hoods have inner
922
D and outer
922
C annular surfaces. Each hood has a central axle opening
922
A formed therethrough to rotatably receive the central axle
620
B of the striker wheel. The diameter of the axle opening
922
A is greater than the diameter of the axle
620
B. Further, the inner diameter d
i
of the rotary wheel hood
922
is greater than the diameter d
w
of the annular unrecessed lateral portions
620
A of the striker wheel
620
. Thus, the striker wheel
620
cannot be actuated or rotated even if the rotary wheel hoods
922
are rotated. Only by pressing or urging downwardly upon the outer annular surface
922
C of the hoods
922
while simultaneously rotating the hoods may the striker wheel
620
be rotated about its axle
620
B.
As may be seen in the various figures, the inner annular surface
922
D may be smooth or may have protuberances thereon. In the same way the outer annular surface
922
C may be smooth or may have protuberances thereon. Likewise, the annular unrecessed lateral portions
620
A of the striker wheel
620
may have protuberances (arrangement b,
FIG. 1A
) or be smooth (arrangement a, FIG.
1
A).
FIG. 1A
illustrates both inner and outer annular surfaces of the hoods
922
as being smooth, but the annular unrecessed lateral portion
620
A of the striker wheel
620
may be smooth (b) or have protuberances (a). The amount of pressure which must be applied to the hoods
922
to cause rotation of the striker wheel
620
will vary depending upon the arrangement of the smoother versus protuberanced surfaces of the hoods and the smooth versus protuberanced surfaces of the annular unrecessed lateral portions
620
A of the striker wheel
620
.
FIG. 1B
illustrates hoods
922
having smooth inner surfaces
922
D and outer surfaces
922
C having protuberances. Again, the striker wheel is shown having protuberances in arrangement (a) while in arrangement (b) these unrecessed lateral portions
620
A are smooth. Flint
618
and spring
617
are assembled into hole
614
A of the mounting frame. Under action of spring
617
, the upper end of the flint
618
is urged against the under side of the recessed portion
619
of the striker wheel
620
. In this first position, if a child rotates outer surface
922
C of the hood
922
in the clockwise direction, only the hood
922
will rotate while the striker wheel
620
will not rotate because the diameter of the axle opening
922
A of the hood
922
is larger than that of the axle
620
A and the inner diameter d
i
of the hood
922
is greater than the diameter d
w
of the annular unrecessed lateral portions
620
A.
FIG. 1C
shows hoods
922
having protuberances on the annular inner surfaces
922
D and annular outer surfaces
922
C being smooth. Arrangement (a) of the striker wheel
620
shows lateral portions with protuberances and arrangement (b) shows lateral portions being smooth. Operation in the first position of the hoods, with no downwardly urging pressure, is the same as in
FIGS. 1A and 1B
.
FIGS. 2A-2C
illustrate detailed views of the upper portion of the lighters of
FIGS. 1A-1C
, respectively, and more clearly show the inventive aspects of the hoods
922
. Operation has been discussed previously.
FIG.
3
A(
a
) shows an assembled perspective detailed view of the portion of the lighter shown in
FIG. 2A
(arrangement (a)) illustrating smooth outer hood surfaces
922
C, smooth inner hood surfaces
922
A, and protuberances on annular unrecessed lateral portions
620
A of striker wheel
620
. Further shown are the frame
614
and the ignition lever
616
. FIG.
3
A(
b
) illustrates an assembled perspective detailed view of the portion of the lighter shown in
FIG. 2A
arrangement (b) showing smooth outer hood surfaces
922
C, smooth inner hood surfaces
922
A, and smooth surfaces on annular unrecessed lateral portions
620
A of striker wheel
620
.
FIG.
3
B(
a
) corresponds as noted above with
FIG. 2B
arrangement (a), and FIG.
3
B(
b
) corresponds with
FIG. 2B
arrangement (b). FIG.
3
C(
a
) corresponds as noted above with
FIG. 2C
arrangement (a), and FIG.
3
C(
b
) corresponds with
FIG. 2C
arrangement (b).
FIGS.
4
A(
a
) and (
b
);
4
B(
a
) and (
b
); and
4
C(
a
) and
4
(
b
) illustrate partial side elevation views of the inventive aspects of the invention shown in FIGS.
3
A(
a
) and (
b
);
3
B(
a
) and (
b
); and
3
C(
a
) and (
b
), respectively. It should be noted in these partial side elevation views that no downward pressure has been applied to the hoods
922
. The figures simply illustrate that the axle
620
B is smaller in diameter than the axle opening
922
A allowing the hoods to freely rotate without causing rotation of the striker wheel
620
. The inner surface
922
D of the hood does not urge against annular unrecessed lateral portions
620
A of the striker wheel
620
. Flint
618
may be seen pressing against striker wheel
620
as a result of the compressive force of spring
617
. Nozzle
608
and lever
616
are also shown.
FIGS.
5
A(
a
) through
6
C(
b
) illustrate the operation of the present inventive safety lighter in a second operative position. The reference symbol P designates a downward force vector being applied to the annular outer surfaces
922
C of hoods
922
. FIGS.
5
A(
a
)-
5
C(
b
) are detailed perspective views which correspond to FIGS.
3
A(
a
)-
3
C(
b
), respectively, but show the application of pressure P. FIGS.
6
A(
a
)-
6
C(
b
) illustrate partial side elevation views of the inventive aspects of the invention of
3
A(
a
)-
3
C(
b
), respectively, partially broken away and sectioned, showing pressure being applied to the rotary wheel hoods.
To ignite a flame, it is necessary to press downwardly upon the annular outer surfaces
922
C of the rotary wheel hood
922
while simultaneously rotating the hoods in a clockwise direction. As a result of the downward force vector upon the hoods, the annular inner surfaces
922
D of the hoods
922
are moved to a second position and urged against the annular unrecessed lateral portions
620
A of the striker wheel
620
. The striker wheel
620
will rotate in this second position against the flint
618
and generate sparks. The simultaneous action of pressing lever
616
raises nozzle
608
to release gas to ignite a flame. Release of pressure on the hoods allows them to rebound to the first safety position away from the unrecessed lateral portions of the striker wheel as shown in FIGS.
3
A(
a
)-
4
C(
b
).
Above there has been described a unique safety lighter. It should be understood that various changes of the details, materials, arrangements of parts and uses which have been herein described and illustrated in order to explain the nature of the invention will occur to and may be made by those skilled in the art upon the reading of this disclosure, and such changes are intended to be included within the principles and scope of this invention.
Claims
- 1. A lighter comprising:a lighter body having a top end; a striker wheel, said striker wheel having a central axle and an outer annular surface, said outer annular surface of said striker wheel further comprising: an annular recessed center portion with a rough surface formed thereon and annular unrecessed lateral portions disposed beside said annular recessed center portion; rotary wheel hoods circumferentially surrounding said annular unrecessed lateral portions of said striker wheel, said hoods having an outer surface and an inner surface, and a central opening formed therethrough to rotatably receive said central axle, said opening having a diameter greater than said axle, said rotary wheel hoods movable from a first position to a second position to impart rotational movement to said striker wheel to create sparks, wherein said inner and outer surfaces of said hoods are smooth and the surfaces of said annular unrecessed lateral portions have protuberances thereon; a mounting frame attached to said top end of said lighter body, said mounting frame having openings formed therethrough to rotatably receive said axle of said striker wheel, and a spring receptacle; a spring received within said spring receptacle; and a flint; said spring exerting a compressive force against said flint and urging said flint into contact with said rough surface of said annular recessed center portion of said striker wheel.
- 2. A lighter comprising:a lighter body having a top end; a striker wheel, said striker wheel having a central axle and an outer annular surface, said outer annular surface of said striker wheel further comprising: an annular recessed center portion with a rough surface formed thereon and annular unrecessed lateral portions disposed beside said annular recessed center portion; rotary wheel hoods circumferentially surrounding said annular unrecessed lateral portions of said striker wheel, said hoods having an outer surface and an inner surface, and a central opening formed therethrough to rotatably receive said central axle, said opening having a diameter greater than said axle, said rotary wheel hoods movable from a first position to a second position to impart rotational movement to said striker wheel to create sparks, wherein said inner and outer surfaces of said hoods are smooth and the surfaces of said annular unrecessed lateral portions are smooth; a mounting frame attached to said top end of said lighter body, said mounting frame having openings formed therethrough to rotatably receive said axle of said striker wheel, and a spring receptacle; a spring received within said spring receptacle; and a flint; said spring exerting a compressive force against said flint and urging said flint into contact with said rough surface of said annular recessed center portion of said striker wheel.
- 3. A lighter comprising:a lighter body having a top end; a striker wheel, said striker wheel having a central axle and an outer annular surface, said outer annular surface of said striker wheel further comprising: an annular recessed center portion with a rough surface formed thereon and annular unrecessed lateral portions disposed beside said annular recessed center portion; rotary wheel hoods circumferentially surrounding said annular unrecessed lateral portions of said striker wheel, said hoods having an outer surface and an inner surface, and a central opening formed therethrough to rotatably receive said central axle, said opening having a diameter greater than said axle, said rotary wheel hoods movable from a first position to a second position to impart rotational movement to said striker wheel to create sparks, wherein said inner surface of said hoods is smooth, the outer surface of said hoods has protuberances thereon, and the surfaces of said annular unrecessed lateral portions have protuberances thereon; a mounting frame attached to said top end of said lighter body, said mounting frame having openings formed therethrough to rotatably receive said axle of said striker wheel, and a spring receptacle; a spring received within said spring receptacle; and a flint; said spring exerting a compressive force against said flint and urging said flint into contact with said rough surface of said annular recessed center portion of said striker wheel.
- 4. A lighter comprising:a lighter body having a top end; a striker wheel, said striker wheel having a central axle and an outer annular surface, said outer annular surface of said striker wheel further comprising: an annular recessed center portion with a rough surface formed thereon and annular unrecessed lateral portions disposed beside said annular recessed center portion; rotary wheel hoods circumferentially surrounding said annular unrecessed lateral portions of said striker wheel, said hoods having an outer surface and an inner surface, and a central opening formed therethrough to rotatably receive said central axle, said opening having a diameter greater than said axle, said rotary wheel hoods movable from a first position to a second position to impart rotational movement to said striker wheel to create sparks, wherein said inner surface of said hoods is smooth, the outer surface of said hoods has protuberances thereon, and the surfaces of said annular unrecessed lateral portions are smooth; a mounting frame attached to said top end of said lighter body, said mounting frame having openings formed therethrough to rotatably receive said axle of said striker wheel, and a spring receptacle; a spring received within said spring receptacle; and a flint; said spring exerting a compressive force against said flint and urging said flint into contact with said rough surface of said annular recessed center portion of said striker wheel.
- 5. A method for manufacturing a safety lighter comprising:providing a lighter body having a top end; providing a striker wheel, said striker wheel having a central axle and an outer annular surface, said outer annular surface of said striker wheel further comprising: an annular recessed center portion with a rough surface formed thereon and annular unrecessed lateral portions disposed beside said annular recessed center portion; attaching rotary wheel hoods circumferentially surrounding said annular unrecessed lateral portions of said striker wheel, said hoods having an outer surface and an inner surface, and a central opening formed therethrough to rotatably receive said central axle, said opening having a diameter greater than said axle, said rotary wheel hoods movable from a first position to a second position to impart rotational movement to said striker wheel to create sparks, wherein said inner and outer surfaces of said hoods are smooth and the surfaces of said annular unrecessed lateral portions have protuberances thereon; attaching a mounting frame to said top end of said lighter body, said mounting frame having openings formed therethrough to rotatably receive said axle of said striker wheel, and a spring receptacle; inserting a spring received within said spring receptacle; and inserting a flint between said spring and said striker wheel such that said spring exerts a compressive force against said flint and urges said flint into contact with said rough surface of said annular recessed center portion of said striker wheel.
- 6. A method for manufacturing a safety lighter comprising:providing a lighter body having a top end; providing a striker wheel, said striker wheel having a central axle and an outer annular surface, said outer annular surface of said striker wheel further comprising: an annular recessed center portion with a rough surface formed thereon and annular unrecessed lateral portions disposed beside said annular recessed center portion; attaching rotary wheel hoods circumferentially surrounding said annular unrecessed lateral portions of said striker wheel, said hoods having an outer surface and an inner surface, and a central opening formed therethrough to rotatably receive said central axle, said opening having a diameter greater than said axle, said rotary wheel hoods movable from a first position to a second position to impart rotational movement to said striker wheel to create sparks, wherein said inner and outer surfaces of said hoods are smooth and the surfaces of said annular unrecessed lateral portions are smooth; attaching a mounting frame to said top end of said lighter body, said mounting frame having openings formed therethrough to rotatably receive said axle of said striker wheel, and a spring receptacle; inserting a spring received within said spring receptacle; and inserting a flint between said spring and said striker wheel such that said spring exerts a compressive force against said flint and urges said flint into contact with said rough surface of said annular recessed center portion of said striker wheel.
- 7. A method for manufacturing a safety lighter comprising:providing a lighter body having a top end; providing a striker wheel, said striker wheel having a central axle and an outer annular surface, said outer annular surface of said striker wheel further comprising: an annular recessed center portion with a rough surface formed thereon and annular unrecessed lateral portions disposed beside said annular recessed center portion; attaching rotary wheel hoods circumferentially surrounding said annular unrecessed lateral portions of said striker wheel, said hoods having an outer surface and an inner surface, and a central opening formed therethrough to rotatably receive said central axle, said opening having a diameter greater than said axle, said rotary wheel hoods movable from a first position to a second position to impart rotational movement to said striker wheel to create sparks, wherein said inner surface of said hoods is smooth, the outer surface of said hoods has protuberances thereon, and the surfaces of said annular unrecessed lateral portions have protuberances thereon; attaching a mounting frame to said top end of said lighter body, said mounting frame having openings formed therethrough to rotatably receive said axle of said striker wheel, and a spring receptacle; inserting a spring received within said spring receptacle; and inserting a flint between said spring and said striker wheel such that said spring exerts a compressive force against said flint and urges said flint into contact with said rough surface of said annular recessed center portion of said striker wheel.
- 8. A method for manufacturing a safety lighter comprising:providing a lighter body having a top end; providing a striker wheel, said striker wheel having a central axle and an outer annular surface, said outer annular surface of said striker wheel further comprising: an annular recessed center portion with a rough surface formed thereon and annular unrecessed lateral portions disposed beside said annular recessed center portion; attaching rotary wheel hoods circumferentially surrounding said annular unrecessed lateral portions of said striker wheel, said hoods having an outer surface and an inner surface, and a central opening formed therethrough to rotatably receive said central axle, said opening having a diameter greater than said axle, said rotary wheel hoods movable from a first position to a second position to impart rotational movement to said striker wheel to create sparks, wherein said inner surface of said hoods is smooth, the outer surface of said hoods has protuberances thereon, and the surfaces of said annular unrecessed lateral portions are smooth; attaching a mounting frame to said top end of said lighter body, said mounting frame having openings formed therethrough to rotatably receive said axle of said striker wheel, and a spring receptacle; inserting a spring received within said spring receptacle; and inserting a flint between said spring and said striker wheel such that said spring exerts a compressive force against said flint and urges said flint into contact with said rough surface of said annular recessed center portion of said striker wheel.
US Referenced Citations (12)
Foreign Referenced Citations (1)
Number |
Date |
Country |
WO 9804869 |
Feb 1998 |
WO |