U.S. patent application number 10/376065 was filed with the patent office on 2004-08-26 for bag for use in gas can.
Invention is credited to Lin, Arlo H. T..
Application Number | 20040164083 10/376065 |
Document ID | / |
Family ID | 32869078 |
Filed Date | 2004-08-26 |
United States Patent
Application |
20040164083 |
Kind Code |
A1 |
Lin, Arlo H. T. |
August 26, 2004 |
Bag for use in gas can
Abstract
A gas-containing apparatus includes a can, a bag and a cover.
The bag is installed in the can. The bag includes a tube formed
thereon and with an internal side and an external side, a thread
formed on the external side of the tube and a boss formed on the
external side of the tube. The cover is mounted on the can. The
cover includes a valve with an external side and an internal side,
a thread formed on the internal side of the valve for engagement
with the thread of the bag and a recess defined in the valve for
receiving the boss, thus avoiding rotation of the tube relative to
the valve.
Inventors: |
Lin, Arlo H. T.; (Road Town,
VG) |
Correspondence
Address: |
NIKOLAI & MERSEREAU, P.A.
900 SECOND AVENUE SOUTH
SUITE 820
MINNEAPOLIS
MN
55402
US
|
Family ID: |
32869078 |
Appl. No.: |
10/376065 |
Filed: |
February 26, 2003 |
Current U.S.
Class: |
220/495.06 |
Current CPC
Class: |
B65D 83/62 20130101 |
Class at
Publication: |
220/495.06 |
International
Class: |
B65D 025/14; B65D
035/14; B65D 090/00 |
Claims
What is claimed is:
1. A gas-containing apparatus includes: a can; a bag installed in
the can, the bag including a tube formed thereon and with an
internal side and an external side, a thread formed on the external
side of the tube and a boss formed on the external side of the
tube; and a cover mounted on the can, the cover including a valve
with an external side and an internal side, a thread formed on the
internal side of the valve for engagement with the thread of the
bag and a recess defined in the valve for receiving the boss, thus
avoiding rotation of the tube relative to the valve.
2. The gas-containing apparatus according to claim 1 wherein the
boss includes an inclined side for facilitating the boss entering
the recess in a direction and an upright side for avoiding the boss
escaping the recess in an opposite direction.
3. The gas-containing apparatus according to claim 1 wherein the
can includes an upper rim, and the cover includes a rim for
engagement with the upper rim of the can.
4. The gas-containing apparatus according to claim 3 including a
seal installed between the upper rim of the can and the rim of the
cover.
5. A gas-containing apparatus includes: a can; a bag installed in
the can, the bag including a tube formed thereon and with an
internal side and an external side, a thread formed on the external
side of the tube and a recess defined in the tube; and a cover
mounted on the can, the cover including a valve with an external
side and an internal side, a thread formed on the internal side of
the valve for engagement with the thread of the bag and a boss
formed on the valve for insertion in the recess, thus avoiding
rotation of the tube relative to the valve.
6. The gas-containing apparatus according to claim 5 wherein the
boss includes an inclined side for facilitating the boss entering
the recess in a direction and an upright side for avoiding the boss
escaping the recess in an opposite direction.
7. The gas-containing apparatus according to claim 5 wherein the
can includes an upper rim, and the cover includes a rim for
engagement with the upper rim of the can.
8. The gas-containing apparatus according to claim 7 including a
seal installed between the upper rim of the can and the rim of the
cover.
Description
BACKGROUND OF INVENTION
[0001] 1. Field of Invention
[0002] The present invention relates to a bag for use in a gas
can.
[0003] 2. Related Prior Art
[0004] Referring to FIG. 5, a conventional valve 2 of a gas can.
The valve 2 includes a hole 3 defined therein and an annular flange
4 formed on the wall of the hole 3. A bag 5 includes a nozzle 6 on
which an annular flange 7 is formed. The bag 5 is put in the gas
can. The nozzle 6 is inserted in the hole 3. The annular flange 7
is engaged with the annular flange 4. However, this engagement is
not firm. The annular flange 7 can be disengaged from the annular
flange 4 when the pressure in the bag 5 is high.
[0005] The present invention is therefore intended to obviate or at
least alleviate the problems encountered in prior art.
SUMMARY OF INVENTION
[0006] It is the primary objective of the present invention to
provide a secure gas-containing apparatus.
[0007] According to the present invention, a gas-containing
apparatus includes a can, a bag and a cover. The bag is installed
in the can. The bag includes a tube formed thereon and with an
internal side and an external side, a thread formed on the external
side of the tube and a boss formed on the external side of the
tube. The cover is mounted on the can. The cover includes a valve
with an external side and an internal side, a thread formed on the
internal side of the valve for engagement with the thread of the
bag and a recess defined in the valve for receiving the boss, thus
avoiding rotation of the tube relative to the valve.
[0008] Other objects, advantages, and novel features of the
invention will become more apparent from the following detailed
description when taken in conjunction with the attached
drawings.
BRIEF DESCRIPTION OF DRAWINGS
[0009] The present invention will be described through detailed
illustration of embodiments referring to the attached drawings
wherein:
[0010] FIG. 1 is a perspective view of a gas-containing apparatus
according to the preferred embodiment of the present invention.
[0011] FIG. 2 is an exploded view of the gas-containing apparatus
shown in FIG. 1.
[0012] FIG. 3 is a partial cutaway of the gas-containing apparatus
shown in FIG. 1.
[0013] FIG. 4 is a cross-sectional view of the gas-containing
apparatus shown in FIG. 1.
[0014] FIG. 5 is a partial cutaway of a conventional gas-containing
apparatus.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENT
[0015] FIG. 1 shows a gas-containing apparatus 1 according to the
preferred embodiment of the present invention. The gas-containing
apparatus 1 includes a can 10 and a cover 20 mounted on the can
10.
[0016] Referring to FIG. 2, the can 10 defines a space 11 for
containing gas and includes an upper rim 12.
[0017] The cover 20 includes a rim 21 engaged with the upper rim 12
of the can 10. For adequate sealing, a seal 22 is often sandwiched
between the rim 21 of the cover 20 and the upper rim 12 of the can
10. A valve 23 is mounted on the cover 20. The valve 23 is a
tubular element with an external side and an internal side. A
thread 24 is formed on the internal side of the valve 23. The valve
23 defines a recess 25 at a lower end thereof.
[0018] A bag 30 filled with gas is installed in the can 10. The bag
30 includes a tube 31 formed thereon and with an internal side and
an external side. On the external side of the tube 31 is formed a
thread 32 for engagement with the thread 24. Also on the external
side of the tube 31 is formed a boss 33 for insertion in the recess
25 as clearly shown in FIGS. 3 and 4, thus avoiding rotation of the
tube 31 relative to the valve 23. The boss 33 includes an inclined
side 34 for facilitating the boss 33 entering the recess 25 in a
direction and an upright side 35 for avoiding the boss 33 escaping
the recess 25 in an opposite direction. Thus, the engagement of the
tube 31 with the valve 23 is firm.
[0019] The present invention has been described through detailed
illustration of the preferred embodiment. Those skilled in the art
can derive variations from the preferred embodiment without
departing from the scope of the present invention. Therefore, the
preferred embodiment shall not limit the scope of the present
invention defined in the claims.
* * * * *