(12) Unlted States Patent (10) Patent 1%.: US 8,281,779 B2

USOO8281779B2
(12) Unlted States Patent
(10) Patent 1%.:
Wiker et a].
(54)
US 8,281,779 B2
(45) Date of Patent:
CONVEYOR OVEN APPARATUS AND
(56)
Oct. 9, 2012
References Cited
METHOD
(75)
U.S. PATENT DOCUMENTS
2 340 354 A
2/1944 Wells
3,162,430 A
12/1964 Wilkerson
Inventors: John H. Wiker, Lockport, IL (US);
MOhan K- Panicker’ Damn, IL (Us);
Magdy A-Albert, Sleepy Hollow, IL
3,570,391 A
3/1971 Rejler
(US); William S. Schjerven, Sr.,
Schaumburg, IL (US)
3,580,164 A
3,589,848 A
5/1971 Baker
6/1971 Potts
3,646,880 A
3/1972 Norris
(73) Assignee: Middleby Corporation, Elgin, IL (US)
(*)
Notice:
(Continued)
Subject to any disclaimer, the term of this
patent is extended or adjusted under 35
U.S.C. 154(b) by 26 days.
FOREIGN PATENT DOCUMENTS
AU
2098970
_ 6/1971
(Cont1nued)
(21) Appl.No.: 12/233,969
OTHER PUBLICATIONS
(22)
(65)
Flled:
sep' 19’ 2008
Prior Publication Data
us 2009/0075224 A1
US. Patent and Trademark Non-Final Of?ce Action, received for
US. Appl. No. 11/526,133, mailed Nov. 23, 2009.
Mar. 19, 2009
(Continued)
Related U-s- Application Data
(63)
(60)
Primary Examiner * Steven B McAllister
Continuation of application No. 11/526,133, ?led on
Sep. 22, 2006, Which is a continuation of application
No. PCT/US2006/ 022304, ?led on Jun. 8, 2006, and a
continuation-in-part
of
application
No.
contlnuatlon-ln-part
of
appllcatlon
No.
1455131111” Examiner * AVinaSh savani
(74) Attorney, Agent, or Firm * Michael Best & Friedrich
LLP
PCT/US2005/009546, ?led on Mar. 23, 2005.
An oven according to some embodiments includes an oven
Provisional application NO' 60/5 5 5 47 4 ?led on Man
chamber in Which food is cooked, a heating element, a fan, a
23 200 4
’
'
sensor for sensing the temperature of the oven chamber, a
remote input device, and a controller con?gured to receive a
’
’
(51)
Int_ CL
F24C 15/32
(200601)
(52) U_s_ CL
126/21 A; 432/126; 432/195; 99/443 C;
signal from the remote input device and to change the fan or
heating element based at least in part upon the signal received
from the remote input device. In a method of operating the
99/443 R; 99/360; 99/327; 99/389
Field of Classi?cation Search .............. .. 126/21 A;
C
R
oven according to some embodiments, the oven enters an
Operating mode from an energy-savings mode responsive to
receiving an signal from a remote device.
(58)
99/389
See application ?le for complete search history.
61 Claims, 25 Drawing Sheets
US 8,281,779 B2
Page2
U.S. PATENT DOCUMENTS
3,721,805 A *
3,861,854 A
3941553 A
3,943,910 A
4,055,677 A
3/1973 Baiiatt ........................ .. 219/492
1/1975
Walbridge
5,276,978 A
1/1994 Hopkins et a1.
g’gg’égg A
$33: Ergélgtegfl'
’
’
3/1976 B df d
5,310,978 A
3/1976
5,321,229 A
or
10/1977 W15“?
-
'
5/1994 Sm1thetal.
6/1994 Hollingetal.
5,351,416 A
10/1994 Witkin
4,131,412 A
12/1978
5,361,749 A
11/1994 Smithetal.
4,176,589 A
12/1979 Sta kews
5,365,918 A
11/1994 Smithetal.
4,189,680 A
4,201,924 A
4,242,079 A
4,245,978 A
4,281,358 A
4321857 A
4,359,315 A
4,377,109 A
4,389,562 A
4,403,942 A
2/1980 Clck
5/1980 Um
5,379,752 A
5,398,666 A
12/1980
1/1995 Virgil, Jr. eta1.
3/1995 Smithetal.
5,401,940 A
3/1995 Smithetal.
M981 defv?l‘gs
5,404,808 A
4/1995 Smit11etal.
7/1981 Plouffeetal.
5’431’181 A
3/1982 B
5,449,888 A
11/1982 Mestth
3/1983 Bat ewsl
6/1983 Cargo?”
9/1983 Copenhaver
5,492,055 A
5’509’403 A
12/1995 Corliss, 11eta1.
2/1996 Nevinetal.
“996 Kahlke etal'
M984 K
M984 H2323
5,520,533 A
5/1996 Vrolijk
4,462,383 A
7/1984 Henke eta1.
5539487 A
7/1996 Sm‘th “31'
4,519,771 A
4,554,437 A
4,601,743 A
4,610,886 A
4,615,014 A
5,510,601 A
9/1995 Sm1thetal.
4438 572 A
4479776 A
ki
5,471,972 A
7/1995 Sathetal'
10/1995 Coxetal.
4,457,291 A
4,492,839 A
4,516,012 A
4,517,447 A
.
5,454,295 A
10/1984 S .th
5,547,373 A
1/1985 Smth
5/1985 Smth 1
5/1985 HITHk “’1'
5/1985 S.1° S 1
11/1985 “llxeta't 1
7/1986 Cfngggde 3'
9/1986 Bullei-c61thiiist
9/1986
Gigandetetal.
5,560,952 A
5,568,802 A
5,582,758 A
4/1996 Sm1thetal.
8/1996 Snell
10/1996 Milleretal.
10/1996 Budayetal.
12/1996 Smithetal.
5,630,408 A
5/1997 Versluis
5,655,511 A
5,671,660 A
8/1997 Prabhuetal.
9/1997 Meshenas
2????8‘2‘ A
’
’
li?gg; 153211121231
-
'
4615 282 A
10/1986 B
5,724,244 A
4,626,661 A
12/1986 Hro‘l‘in
5,818,014 A
10/1998 Smithetal.
5,819,721 A
10/1998 carietai.
’
’
5,864,120 A
1171222
1/1999 Vroometal.
4,662,838 A
5/1987 Rigel;
4,676,151 A
4700 685 A
6/1987 Gorsuch etal.
10/1987 Miller
437013340 A
10/1987 Bram)“ etal'
A
4,739,154 A
4/1988 Bhararaet al.
5906485 A
4,749,581 A
6/1988
Gorsuchetal.
’
3/1998 Yabuk1
2133 5:108, t 1
219/700
5/1999 Gg?fret
’
m
""""""""" "
e 3'
4750276 A
6/1988 Smithetal
5,919,039 A
7/1999 Shawetal.
4,753,215 A
6/1988 Kaminski eta1.
5958274 A
9/1999 DOb‘e etal'
4757 800 A
7/1988 Sheietal
5,964,044 A
10/1999 Lauersdorfetal.
4,760,911 A
8/1988 Bacigalupe eta1.
g’g?’jég A
ligggg gi?ggr’h'etal'
4,781,169 A
11/1988 Henkeetal.
6026036 A
20000 Sk.
4,787,842 A
11/1988 Stewartetal.
6’037’580 A
3/2000 Rin‘gaeta'
4,792,303 A
12/1988
4834 063 A
Stewartetal.
’
’
1
5/1989 Hwangetal
6,080,972 A
6/2000 May ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~ 219/494
4,846,143 A
7/1989 Csadenyi
6’121’593 A
9,2000 M
4,846,647 A
7/1989
4,881,519 A
Stewart eta1.
11/1989 Henke
’
’
b
31
ans. “Y et
21%;? 2
'
135888 goerlestal
4,882,981 A
11/1989 Bacigalupeetal.
6’141’967 A
11/2000 Aflmlse 1'
4,886,044 A
12/1989 B t
'
6,149,065 A
11/2000 Whlte eta1.
4,928,663 A
5/1990 Naiinetal
6,157,002 A
12/2000 Schjerven, 81.61211.
4,941,819 A
4964392 A
7/1990 Stewart eta1.
10/1990 Brunoetal
6’157’014 A
6,171,630 B1
12/2000 Goranson
1/2001 Stangeretal.
4884 552 A
12/1989 We11seta1
’
’
5e “3'
4,981,416 A
1/1991 Nevin eta1.
6’216’683 B1
“001 Maqghan
5012071A
4/1991 H k
6,217,312 B1
4/2001 Lev1ns0netal.
5,013,563 A
5/1991 Sting
6,250,296 B1
6/2001 Norrisetal.
5,016,606 A
5025 775 A
5/1991 Himmel et al.
6/1991 Cris
6252201 B1
6,408,223 B1
600‘“ Nevarez
6/2002 Skyumetal.
5,033,366 A
7/1991 Sung“
6,462,319 B1
10/2002 Uyetai.
5’045’658 A
9/1991 S .th
6,481,433 B1
11/2002 Schjerven,Sr.etal.
5’078’050 A
5,112,630 A
5,131,841A
5,134,263 A
5’147’994 A
1/1992
5/1992
7/1992
M992
9/1992
6,526,961
6,552,309
6,576,874
6,624,396
6,630,650
3/2003
4/2003
6/2003
9/2003
10/2003
5,154,160 A
5161889 A
5,179,265 A
Sml?l
Sn“
SCQttth t 1
Smithetar
S?thztgl'
10/1992 Burteaetal.
11/1992 Smith eta1.
1/1993 Sheridanetal‘
B1
B1
B2
B2
B2
6,655,373 B1
6,684,657 B1
6,684,875 B1
Hardenburger
Kishetal.
Zapataetal.
Witteta1.
Bassi11eta1.
12/2003 W‘ker
2000“ DOQgherty
2/2004 SChJGI'VGIl, Sr. etal.
5,189,944 A *
3/1993 Rasmussen eta1. .......... .. 99/334
6,707,014 B1
3/2004 Corey etal~
5,197,375 A
3/1993 Rosenbrocketal.
6,723,961 B2
4/2004 ChoatetaL
5,205,274
5,210,387
5,234,196
5,249,739
5,253,564
A
A
A
A
A
4/1993
5/1993
8/1993
10/1993
10/1993
Smith etal,
Smith etai,
Harris
Bartels et a1.
Rosenbrock et 31.
6,730,890
6,799,712
6,817,283
6,860,734
6,920,820
B2
B1
B2
B2
B2
5/2004
10/2004
11/2004
3/2005
7/2005
K1sh etal.
Austenet a1.
Jones eta1.
Zia eta1.
Meggison et a1.
US 8,281,779 B2
Page 3
6,933,473 B2
8/2005 Henke et al.
7,091,452 B2
8/2006 Kingdon et al.
Written Opinion of the International Searching Authority, Interna
tional Patent Application No. PCT/US05/38783, mailed Jun. 14,
3/2008 Wolfe et al. ................... .. 99/386
2006.
7,340,992 B1*
7,541,559 B2
2001/0038876 A1
6/2009 MilZ
11/2001 Anderson
2002/0013819 A1*
1/2002
2002/0070099 A1
6/2002 Neely
2003/0213371
2004/0237741
2005/0021407
2005/0109216
2005/0132899
2007/0006865
2007/0012307
2007/0272228
2008/0092754
2008/0124668
2008/0245359
2008/0289619
2009/0223503
2010/0001087
A1
A1
A1*
A1
A1
A1
A1
A1
A1
A1
A1
A1
A1
A1
Lim et al. .................... .. 709/208
1 1/ 2003 Saunders
12/2004 Stinnett et al.
1/2005
Kargman ...................... .. 705/15
5/2005 Jones et a1.
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1/2007 Wiker et al.
1/2007 Wiker et al.
1 1/ 2007 Slaby
4/2008
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1/2010
Noman
Schultz et a1.
Williamson
Schjerven, Sr. et al.
Wiker et al.
Gum
FOREIGN PATENT DOCUMENTS
DE
FR
GB
JP
WO
WO
W0
WO
WO
WO
WO
WO
3536008
2454596
2215177
2004329107
0122823
2004076928
WO 2005/023006
2005/094647
2005112650
2006/101531
2007/050136
2010080160
4/1987
11/1980
9/1989
11/2004
4/2001
9/2004
3/2005
10/2005
12/2005
9/2006
5/2007
7/2010
OTHER PUBLICATIONS
US. Patent and Trademark Final Of?ce Action, received for US.
Appl. No. 11/526,133, mailed Apr. 29, 2009.
US. Patent and Trademark Non-Final Of?ce Action, received for
US. Appl. No. 11/526,133, mailed Aug. 6, 2008.
International Search Report, International Patent Application No.
PCT/US05/09546, mailed Sep. 2, 2005.
Written Opinion of the International Searching Authority, Interna
tional Patent Application No. PCT/US05/09546, mailed Sep. 2, 2005.
International Preliminary Report on Patentability, International
Patent Application No. PCT/US05/09546, completed Jan. 8, 2006.
International Search Report, International Patent Application No.
PCT/US05/38783, mailed Jun. 14, 2006.
International Preliminary Report on Patentability, International
Patent Application No. PCT/US05/38783, completed Dec. 30, 2008.
International Search Report, International Patent Application No.
PCT/US06/22304, mailed Apr. 27, 2007.
Written Opinion of the International Searching Authority, Interna
tional Patent Application No. PCT/US06/22304, mailed Apr. 27,
2007.
International Preliminary Report on Patentability, International
Patent Application No. PCT/US06/22304, completed Dec. 3, 2007.
US. Patent and Trademark Final Of?ce Action, received for US.
Appl. No. 11/526,133, mailed Jul. 20, 2010.
Canadian Intellectual Property Of?ce Action, Canadian Patent Appli
cation No. 2,625,621, mailed Mar. 5, 2010.
7.4 Electrical Diagram, 3270-TS-D Left Hand Side, XLT-3200-TS-D
Installation & Operation Manual, p. 48.
7.5 Electrical Diagram, 3270-TS-D- Right Hand Side, XLT-3200
TS-D Installation & Operation Manual, p. 49.
Owner’s Operating & Installation Manual for Gas Oven Models
Series PS360EWB; Middleby Marshall; Apr. 1996.
Selectra, A200 Signal Conditioner Bulletin MS2036-01/96; Jan.
1996; Maxitrol Company; South?eld, MI, USA.
Selectra, AP300 Signal Conditioner Bulletin MS2036A-03/00; Mar.
2000; Maxitrol Company; South?eld, MI, USA.
Bakers Pride Oven Company, Inc.; APC-18 Electric Conveyor Oven;
Jul. 2000.
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Forced Air Counter Top Conveyor Ovens; Mar. 2003.
Bakers Pride Oven Company, Inc.; Model VHVA-1828E DualAir
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* cited by examiner
US. Patent
20
\
0a. 9, 2012
26
Sheet 1 0f 25
4‘2
FIG. 2
US 8,281,779 B2
US. Patent
Oct. 9, 2012
US 8,281,779 B2
Sheet 2 0f 25
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US. Patent
0a. 9, 2012
42
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Sheet 3 0f 25
US 8,281,779 B2
655
660
Dis la s
Controls
a
'
"i
a
p y
:
; 650
22
a
s
<
5
g
Conveyor(s) \g
'
i
CPU
i
Photo
Sensor(s)
a? 62
"""""""""""""""""" ~ “
79, 81,
83, 85
Temperature
Sensor(s)
FIG. 3A
Burner(s)
US. Patent
0a. 9, 2012
Sheet 4 0f 25
US 8,281,779 B2
FIG.4
US. Patent
0a. 9, 2012
Sheet 5 0f 25
US 8,281,779 B2
73
‘ (
Blower Velocity 1
/
‘i
(RPM) / 0
L
>
71
Time
FIG. 5A
60 (Left Burner)
62 (Right Burner)
Burner Output
(Percentage of Capacity)
>
Time
FIG. SB
80
L
_
_
_
_
82
—
_
_
_
_
_
_
_
_
-
_
_
-
_
_
_
_
_
FIG. 5C
_
_
_
_
_
_
-
_
_
_
-J
US. Patent
Oct. 9, 2012
Sheet 7 0f 25
FIG. 6A
FIG. 68
US 8,281,779 B2
US. Patent
0a. 9, 2012
Sheet 8 0f 25
US 8,281,779 B2
US. Patent
0a. 9, 2012
Sheet 9 0f 25
US 8,281,779 B2
102
FIG.8
US. Patent
0a. 9, 2012
Sheet 10 0f 25
FIG. 9A
US 8,281,779 B2
FIG. 9C
\l‘
102'\ 208—12/
/\I
FIG. 9D
\102
US. Patent
0a. 9, 2012
Sheet 11 0125
68\
-/
258
255%
US 8,281,779 B2
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I
256
20
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254
152
——'—Q’
172 253
251 170
FIG. 1 1
154
155
US. Patent
0a. 9, 2012
Sheet 12 0125
US 8,281,779 B2
IS a pizza
detected on the
conveyor?
305'“"'---
Reset Timer
320
1'
310‘“““—-*
315mg
Fan = High
Fan = Low
Jr
J,
Temp = High
Temp = Low
FIG. 12
“325
“330
US. Patent
0a. 9, 2012
Sheet 13 0f 25
US 8,281,779 B2
335
Is a pizza
detected on the
conveyor?
Y
340x,
345
Reset Timer
Fan = Low
“‘370
l
¢
Fan = High
Burner 2 = Off
“k375
Temp = Low
“5380
350w
l
355
360%
Conveyor = Off
Conveyor = On
FIG. 13
“‘385
US. Patent
0a. 9, 2012
Sheet 14 0f 25
US 8,281,779 B2
400
Is a pizza
detected on the
conveyor?
405w
Reset Timer
Fan = Low
410%
Fan = High
Burner = Off
415%
Temp = High
Conveyor = Off
420
425%
Conveyor = On
FIG. 14
\f'“435
~440
“"445
US. Patent
0a. 9, 2012
Sheet 15 of 25
US 8,281,779 B2
450—
detected on the
conveyor?
470
455,\_/
Reset Timer
460%“;
Fan = High
4
465*\~_,
Temp = High
r
F
Fan = Low
Burner 2 = Off
1,
J,
Temp = Low
490
495
Conveyor = Off /
Is a pizza
detected on the
conveyor?
505
Reset Timer
l
510,\_/
Fan = High
‘L
515'\,
Temp = High
525w
Conveyor = On
1
FIG. 15
US. Patent
0a. 9, 2012
Sheet 16 0f 25
US 8,281,779 B2
550—
Is a pizza
detected on the
conveyor?
570
555K”
Reset Timer
l
560‘“
Fan = High
580
J,
565‘“
Temp = High
F
Fan = Low
Burner 2 = Off
l
T
Temp = Low
Conveyor = Off
590
595
Is a pizza
detected on the
conveyor?
605M
610'"\/
Reset Timer
Blowers = Off
l
T
Fan = High
Burner 1 = on
i
615'\-/
625
Temp = High
l__4
640
Conveyor = On
FIG. 16
US. Patent
0a. 9, 2012
Sheet 17 0f 25
r
_
b
_
_
_
_
_
_
L
_
_
?
_
~
_
_
_
_
US 8,281,779 B2
_
-
_
_
_
_
_
_-'
_
_
_
_
_
_
_
_)
650
22
(
42:
~ ~ _ _.'
5
Conveyor(s)\i\\
'
a? 62
E
CPU
}
Photo
Sensor(s)
K
79, 81,
Temperature
83, 85
Sensor(s)
FIG. 17
Burner(s)