Combustion – Correlation of fuel or power supply with component movements...
Reexamination Certificate
2002-05-07
2003-09-02
Price, Carl D. (Department: 3743)
Combustion
Correlation of fuel or power supply with component movements...
C431S131000, C431S132000, C431S130000
Reexamination Certificate
active
06612832
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a lighter having a two-stage locking type safety switch, and more particularly to a lighter having a two-stage locking type safety switch, wherein the slide knob has to proceed a substantially L-shaped movement to trigger the igniter and light the lighter, so that the lighter cannot be operated easily and unintentionally, thereby providing a double safety effect.
2. Description of the Related Art
A conventional press arm type lighter in accordance with the prior art shown in
FIGS. 1 and 2
comprises a liquid gas container
90
, and a press arm
91
rotatably mounted on the top of the liquid gas container
90
and having a pivot arm
92
pivotally mounted in the liquid gas container
90
. When the press arm
91
is pressed and rotated, the pivot arm
92
may be pivoted to open a gas open/close valve
93
and an igniter
94
, so that the gas contained in the liquid gas container
90
may be conveyed to the opening of the liquid gas container
90
, and may be ignited by the ignition coil
941
. When the press arm
91
is returned to the original position to cover the opening of the liquid gas container
90
, the gas open/close valve
93
may be closed, so as to shutoff conveyance of the gas contained in the liquid gas container
90
, thereby distinguishing the lighter. However, the press arm
91
is easily pressed unintentionally to ignite the lighter, thereby easily causing danger to the user or the children.
A conventional press type lighter in accordance with the prior art is disclosed in the applicant's U.S. Pat. No. 6,186,772B1 and U.S. Pat. No. 6,231,335B1. However, the conventional press type lighter disclosed in the applicant's U.S. Pat. No. 6,231,335B1 has a complicated construction with many parts, thereby increasing costs of fabrication.
SUMMARY OF THE INVENTION
The present invention has arisen to mitigate and/or obviate the disadvantage of the conventional lighter.
The primary objective of the present invention is to provide a lighter having a two-stage locking type safety switch, wherein the slide knob has to proceed a substantially L-shaped movement to trigger the igniter and light the lighter, so that the lighter cannot be operated easily and unintentionally, thereby providing a double safety effect.
Another objective of the present invention is to provide a lighter having a two-stage locking type safety switch, wherein the lighter has a simple construction, thereby saving cost of fabrication.
In accordance with the present invention, there is provided a lighter having a two-stage locking type safety switch, comprising a liquid gas container, a press member pivotally mounted on the liquid gas container, and a first-stage safety switch structure including a clutch structure mounted in the press cover, for controlling the press cover and the liquid gas container to be disposed at a first-stage locking or free state.
The lighter having a two-stage locking type safety switch further comprises a second-stage safety switch structure mounted between the slide knob, the control member and the top cover, wherein the second-stage safety switch structure includes a locking recess formed in the guide slot of the top cover, so that the locking recess and the guide slot of the top cover may form a substantially L-shaped structure, and the slide knob may slide in the locking recess to move into the guide slot of the top cover.
Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
REFERENCES:
patent: 2283909 (1942-05-01), Bolle
patent: 2701459 (1955-02-01), Williams
patent: 3442598 (1969-05-01), Halm
patent: 5310336 (1994-05-01), Segawa
patent: 5531591 (1996-07-01), Yamazaki
patent: 6135761 (2000-10-01), Chen
patent: 6186772 (2001-02-01), Huang
patent: 6231335 (2001-05-01), Huang
patent: 6431853 (2002-08-01), Sher
patent: 1030915 (1953-06-01), None
patent: 05-157235 (1993-06-01), None
Price Carl D.
Rosenberg , Klein & Lee
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