U.S. patent application number 13/468267 was filed with the patent office on 2013-06-27 for two-piece warming oven.
This patent application is currently assigned to ALLGREEN DESIGNS CO., LTD.. The applicant listed for this patent is Wen-Chang YEN. Invention is credited to Wen-Chang YEN.
Application Number | 20130160756 13/468267 |
Document ID | / |
Family ID | 46463855 |
Filed Date | 2013-06-27 |
United States Patent
Application |
20130160756 |
Kind Code |
A1 |
YEN; Wen-Chang |
June 27, 2013 |
TWO-PIECE WARMING OVEN
Abstract
A two-piece warming oven includes a base, a heat-conducting
unit, and a heating unit for heating the conducting member. The
base includes a supporting plate, and a plurality of spaced-apart
upright supporting rods disposed around the supporting plate and
having lower end portions connected fixedly to an outer periphery
of the supporting plate to define an accommodating space above the
supporting plate and among the supporting rods. The heat-conducting
unit is connected removably to the base, and is convertible between
a used position, where the heat-conducting unit is disposed above
the accommodating space, and a storage position, where the
heat-conducting unit is inverted and extends into the accommodating
space.
Inventors: |
YEN; Wen-Chang; (Kaohsiung
City, TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
YEN; Wen-Chang |
Kaohsiung City |
|
TW |
|
|
Assignee: |
ALLGREEN DESIGNS CO., LTD.
Kaohsiung City
TW
|
Family ID: |
46463855 |
Appl. No.: |
13/468267 |
Filed: |
May 10, 2012 |
Current U.S.
Class: |
126/275R ;
126/337R; 126/39B |
Current CPC
Class: |
F24C 3/14 20130101 |
Class at
Publication: |
126/275.R ;
126/39.B; 126/337.R |
International
Class: |
F24C 1/16 20060101
F24C001/16; F24C 15/16 20060101 F24C015/16; F24C 3/14 20060101
F24C003/14 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 21, 2011 |
TW |
100224151 |
Claims
1. A two-piece warming oven comprising: a base including a
supporting plate having a top surface, and a plurality of
spaced-apart upright supporting rods disposed around said
supporting plate and having lower end portions connected fixedly to
an outer periphery of said supporting plate to define an
accommodating space above said supporting plate and among said
supporting rods; a heat-conducting unit connected removably to said
base and convertible between a used position, where said
heat-conducting unit is disposed above said accommodating space,
and a storage position, where said heat-conducting unit is inverted
and extends into said accommodating space, said heat-conducting
unit including a conducting member; and a heating unit disposed on
said base for heating said conducting member when said
heat-conducting unit is at said used position; wherein, when said
heat-conducting unit is at said storage position, at least one
portion of said heat-conducting unit is removed from the remaining
portion of said heat-conducting unit, and at least one portion of
said heating unit is removed from said base.
2. The two-piece warming oven as claimed in claim 1, wherein said
heat-conducting unit further includes a positioning plate that
defines a top end of said accommodating space in said base, a top
plate disposed above said positioning plate, and a plurality of
connecting rods that are disposed around said conducting member,
that are connected fixedly to outer peripheries of said positioning
plate and said top plate, and that are locked respectively and
removably on said supporting rods of said base, said conducting
member being configured as an upright quartz glass tube connected
between said positioning plate and said top plate.
3. The two-piece warming oven as claimed in claim 1, wherein each
of said supporting rods of said base and said connecting rods of
said heat-conducting unit has an L-shaped cross-section, such that
top end surfaces of said supporting rods abut against bottom end
surfaces of said connecting rods when said heat-conducting unit is
at said used position, and such that intermediate portions of said
supporting rods abut respectively against top ends of said
supporting rods, said base further including a plurality of first
coupling members connected respectively and fixedly to said
supporting rods, each of said first coupling members being formed
with a plurality of threaded holes, said heat-conducting unit
further including a plurality of second coupling members connected
respectively and fixedly to said connecting rods, each of said
second coupling members having a plurality of through holes that
are formed therethrough and that are disposed below a corresponding
one of said connecting rods, said two-piece warming oven further
comprising a plurality of lock bolts extending respectively through
said through holes in said second coupling members and engaging
respectively said threaded holes in said first coupling members, so
that said connecting rods are locked respectively and removably on
said supporting rods.
4. The two-piece warming oven as claimed in claim 2, wherein said
heating unit includes a fuel source placed on said top surface of
said supporting plate, a heater that is heated by said fuel source
and that is attached to and disposed under said positioning plate,
and a position-limiting member hooked removably on two adjacent
ones of said supporting rods for positioning said fuel source
within said accommodating space in said base, said fuel source and
said position-limiting member constituting two said portions of
said heating unit.
5. The two-piece warming oven as claimed in claim 4, wherein said
base further includes two engaging rings disposed respectively and
fixedly on said two adjacent ones of said supporting rods, said
position-limiting member having two L-shaped ends inserted
respectively into said engaging rings.
6. The two-piece warming oven as claimed in claim 5, wherein said
fuel source is configured as a gas barrel, and said
position-limiting member further has a curved intermediate section
for contact with said gas barrel.
7. The two-piece warming oven as claimed in claim 4, wherein said
positioning plate has a first aperture, and said top plate has a
second aperture, said heater being aligned with said first
aperture, said quartz glass tube being in fluid communication with
said first and second apertures.
8. The two-piece warming oven as claimed in claim 7, wherein said
heat-conducting unit further includes a fireproof net disposed
fixedly on and above said top plate and around said second
aperture, a windproof shield disposed fixedly on and above said top
plate, surrounding said fireproof net, and having a plurality of
vent holes; and a top cover disposed fixedly on and above said
fireproof net, said fireproof net, said windproof shield, and said
top cover constituting three said portions of said heat-conducting
unit.
9. The two-piece warming oven as claimed in claim 8, wherein said
heat-conducting unit further includes a plurality of zigzag
retaining plates located around said windproof shield and disposed
respectively and fixedly on and extending upwardly from top ends of
said connecting rods, and said windproof shield has a plurality of
zigzag plate portions abutting respectively against said zigzag
retaining plates, so as to prevent movement of said windproof
shield relative to said zigzag retaining plates.
10. The two-piece warming oven as claimed in claim 2, wherein said
supporting plate is polygonal, and said two-piece warming oven
further comprising a roller unit disposed on a side of said
supporting plate.
11. The two-piece warming oven as claimed in claim 2, wherein said
heat-conducting unit further includes a plurality of net plates
each connected fixedly between two adjacent ones of said connecting
rods.
12. The two-piece warming oven as claimed in claim 1, wherein said
base further includes a plurality of stop plates each connected
between two adjacent ones of said supporting rods for confining
said fuel source within said accommodating space.
13. The two-piece warming oven as claimed in claim 1, wherein said
base further includes a plurality of height-adjustable supports
connected to and disposed under bottom ends of said supporting
rods, respectively.
Description
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application claims priority of Taiwanese Application
No. 100224151, filed on Dec. 21, 2011.
BACKGROUND OF THE INVENTION
[0002] 1. Field of the Invention
[0003] This invention relates to a warming oven, and more
particularly to a two-piece warming oven including two pieces, one
of which is invertible to reduce the total volume and length of the
warming oven for storage and transportation.
[0004] 2. Description of the Related Art
[0005] In a warming oven disclosed in Chinese Patent Application
No. 200730048740.3, heat is generated by a heating unit disposed
within a base, and is transmitted upwardly through a
heat-conducting tube for increasing the surrounding temperature.
During generation of the heat, a fire flame occurs in the
heat-conducting tube to have a better decorating effect. To comply
with safety regulation, such a warming oven must have a height of
at least two meters, thereby resulting in inconvenience during
storage and transportation of the warming oven.
SUMMARY OF THE INVENTION
[0006] The object of this invention is to provide a warming oven
that is convenient to store and transport.
[0007] According to this invention, a two-piece warming oven
includes a base, a heat-conducting unit, and a heating unit for
heating the conducting member. The base includes a supporting
plate, and a plurality of spaced-apart upright supporting rods
disposed around the supporting plate and having lower end portions
connected fixedly to an outer periphery of the supporting plate to
define an accommodating space above the supporting plate and among
the supporting rods. The heat-conducting unit is connected
removably to the base, and is convertible between a used position,
where the heat-conducting unit is disposed above the accommodating
space, and a storage position, where the heat-conducting unit is
inverted and extends into the accommodating space.
[0008] An assembly of the base and the heating unit acts as one of
the two pieces, and the heat-conducting unit acts as the other of
the two pieces. When the heat-conducting unit is disposed at the
storage position, since a major portion thereof extends into the
accommodating space to reduce significantly the total volume and
length of the warming oven, the warming oven is convenient to store
and transport.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] These and other features and advantages of this invention
will become apparent in the following detailed description of a
preferred embodiment of this invention, with reference to the
accompanying drawings, in which:
[0010] FIG. 1 is a perspective view of the preferred embodiment of
a warming oven according to this invention;
[0011] FIG. 2 is a side view of the preferred embodiment;
[0012] FIG. 3 is an exploded perspective view of the preferred
embodiment;
[0013] FIG. 4 is a fragmentary exploded perspective view of the
preferred embodiment;
[0014] FIG. 5 is a schematic view of the preferred embodiment,
illustrating a used position of a heat-conducting unit; and
[0015] FIG. 6 is a side view of the preferred embodiment,
illustrating a storage position of the heat-conducting unit.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0016] Referring to FIGS. 1 and 2, the preferred embodiment of a
two-piece warming oven 1 according to this invention includes a
base 2, a heat-conducting unit 3 connected removably to the base 2,
a heating unit 4 (see FIG. 3) for heating the heat-conducting unit
3, and a roller unit 5 disposed on a lateral side of the base 2. In
this embodiment, an assembly of the base 2, the heating unit 4, and
the roller unit 5 acts as one of the two pieces, and the heating
unit 4 acts as the other of the two pieces.
[0017] With further reference to FIGS. 3 and 4, the base 2 includes
a supporting plate 21, a plurality of spaced-apart upright
supporting rods 22 of L-shaped cross-section disposed around the
supporting plate 21 and having lower end portions connected fixedly
to an outer periphery of the supporting plate 21, a plurality of
first coupling members 23 connected respectively and fixedly to top
ends of the supporting rods 22 and each formed with two threaded
holes 231, two engaging rings 24 disposed respectively and fixedly
on two adjacent ones of the supporting rods 22, a plurality of stop
plates 25 each connected between two adjacent ones of the
supporting rods 22, and a plurality of height-adjustable supports
26 connected to and disposed under bottom ends of the supporting
rods 22, respectively. The supporting plate 21 cooperates with the
supporting rods and the stop plates 25 to define an accommodating
space 27 above the supporting plate 21 and among the supporting
rods 22 and the stop plates 25. In this embodiment, the supporting
plate 21 is square, and has four upright side plate portions 210
disposed respectively at four sides thereof. Each of the side plate
portions 210 is formed with an inverted U-shaped slot 211
therethrough that has a horizontal slot section and two upright
slot sections extending respectively and downwardly from two ends
of the horizontal slot section to define a projecting plate portion
212 among the horizontal slot section and the upright slot
sections. Each of the stop plates 25 has a plate body 250 and two
retaining rings 251 welded to the plate body 250. Since each of the
retaining rings 251 is sleeved on the corresponding plate portion
212, and since each of the lateral side surfaces of each of the
stop plates 25 is in intimate contact with the corresponding
supporting rod 22, the stop plates 25 can be positioned relative to
the supporting plate 21 and the supporting rods 22.
[0018] The heat-conducting unit 3 includes: a positioning plate 31
defining a top end of the accommodating space 27 and having a first
aperture 311; a top plate 32 spaced apart from and disposed above
the positioning plate 31 and having a second aperture 321; a
conducting member 33 configured as an upright quartz glass tube,
connected between the positioning plate 31 and the top plate 32,
and in fluid communication with the first and second apertures 311,
321; a plurality of upright connecting rods 34 disposed around the
conducting member 33, connected fixedly to outer peripheries of the
positioning pate 31 and the top plate 32, locked respectively and
removably on the supporting rods 22 by a plurality of first lock
bolts 6 (see FIG. 4); a plurality of second coupling members 35
connected respectively and fixedly to the connecting rods 34 and
having bottom ends disposed below the connecting rods 34; a
fireproof net 36 disposed on and above the top plate 32 and around
the second aperture 321; a windproof shield 37 disposed around the
fireproof net 36 and having a plurality of vent holes 371; a top
cover 38 disposed fixedly on and above the fireproof net 36; a
plurality of net plates 39 each connected fixedly between two
adjacent ones of the connecting rods 34; and a plurality of zigzag
retaining plates 30 located around the windproof shield 37 and
disposed fixedly on and extending respectively and upwardly from
top ends of the connecting rods 34. The windproof shield 37 further
has a plurality of zigzag plate portions 372 abutting respectively
against the zigzag retaining plates 30, so as to prevent movement
of the windproof shield relative to the zigzag retaining plates 30.
The cross-section shape of each of the connecting rods 34 is the
same as that of each of the supporting rods 22, such that bottom
end surfaces of the connecting rods 34 abut respectively against
top end surfaces of the supporting rods 22. Each of the second
coupling members 35 is configured as a flat plate, and has two
through holes 351 formed therethrough.
[0019] With further reference to FIG. 5, the heating unit 4
includes a fuel source 40 configured as a gas barrel and placed on
the top surface of the supporting plate 21, a heater 41 that is
heated by the fuel source 40, that is attached to and disposed
under the positioning plate 31 of the heat-conducting unit 3, and
that is aligned with the first aperture 311, and a
position-limiting member 42 hooked removably on two adjacent ones
of the supporting rods 22 for positioning the fuel source 40 within
the accommodating space 27 in the base 2. The heater 41 is used for
heating the conducting member 33 of the heat-conducting unit 3. The
position-limiting member 42 has a curved intermediate section 421
for contact with the fuel source 40, and two L-shaped ends 422
inserted respectively into the engaging rings 24.
[0020] In this embodiment, the roller unit 5 is attached to a side
of the supporting plate 21.
[0021] The heat-conducting unit 3 is convertible between a used
position shown in FIG. 5, where the heat-conducting unit 3 is
connected fixedly to and disposed above the base 2, and a storage
position shown in FIG. 6, where the heat-conducting unit 3 is
inverted and received partially within the accommodating space 27
in the base 2. At the used position, the heat-conducting unit 3 is
disposed above the accommodating space 27, the connecting rods 34
are connected respectively to the supporting rods 22 by the first
lock bolts 6 extending respectively through the through holes 351
in the second coupling members 35 and engaging respectively the
threaded holes 231 in the first coupling member 23, and each of the
stop plates 25 is connected fixedly to the positioning plate 31 by
two second lock bolts 7 (see FIG. 3), such that the fuel source 40
can be placed on the supporting plate 21. When the heat-conducting
unit 3 is at the used position and when it is desired to move the
two-piece warming oven 1 from one place to another place, the
two-piece warming oven 1 is reclined in a direction (A) (see FIG.
5) until the roller unit 5 comes into contact with the ground.
Hence, the two-piece warming oven 1 acts as a wheeled device, and
can be pushed easily and conveniently. When the wheeled device is
moved, since the curved portion 421 of the position-limiting member
42 is concave away from the fuel source 40, as shown in FIGS. 3 and
5, the fuel source 40 can be supported stably by the curved portion
421 of the position-limiting member 42.
[0022] When use of the two-piece warming oven 1 is intended, the
height adjustable supports 26 are first adjusted so as to allow the
two-piece warming oven 1 stand stably. Next, the heater 41 is
operated so that a fire flame is produced in the quartz glass tube
33 and goes upwardly out of the quartz glass tube 33 through the
second aperture 321. Hence, the quartz glass tube 33 is heated so
that the surrounding temperature arises. During heating, the
fireproof net 36 and the windproof shield 37 disposed above the
quartz glass tube 33 cooperate to prevent the fire flame to go out
laterally, and the vent holes 371 in the windproof shield 37 permit
supplementation of fresh air into the quartz glass tube 33
therethrough to prevent incomplete combustion due to lack of oxygen
gas.
[0023] When a reduction in the total volume or total length of the
two-piece warming oven 1 is desired, e.g., for a manufacturer to
transport the two-piece warming oven 1 to a distributor, the first
lock bolts 6 are first removed so that the heat-conducting unit 3
can be removed from the base 2. Next, the fuel source 40, the
position-limiting member 42, the top cover 38, the windproof shield
37, the fireproof net 36, and the second lock bolts 7 are removed.
Subsequently, the heat-conducting unit 3 can be inverted and
inserted into the accommodating space 27 until the intermediate
portions of the connecting rods 34 come into contact with the top
ends of the supporting rods 22, so that the heat-conducting unit 3
is disposed at the storage position. At the storage position, the
two-piece warming oven 1 can also be changed to a wheeled device
for convenience of transportation. During such a transportation,
since the zigzag structure of the connecting rods 34 and the
supporting rods 22, the connecting rods 34 can be supported stably
by the supporting rods 22.
[0024] It should be noted that, the number and shape of each of the
connecting rods 34 and the supporting rods 22 can be changed
according to actual needs.
[0025] As such, since the base 2 is connected removably to the
heat-conducting unit 3, the two-piece warming oven 1 is convenient
to store and transport. Thus, the object of this invention is
achieved. Furthermore, the fuel source 40 is supported stably by
the position-limiting member 42. Further, since the windproof
shield 37 can be positioned by the zigzag retaining plates 30, no
positioning means is required to maintain the position of the
windproof shield 37 relative to the top plate 32.
[0026] With this invention thus explained, it is apparent that
numerous modifications and variations can be made without departing
from the scope and spirit of this invention. It is therefore
intended that this invention be limited only as indicated by the
appended claims.
* * * * *