USOO8281779B2 (12) Unlted States Patent (10) Patent 1%.: US 8,281,779 B2 Wiker et a]. (45) Date of Patent: Oct. 9, 2012 (54) CONVEYOR OVEN APPARATUS A
Sheet 7 0f 25 Oct. 9, 2012 US. Patent US 8,281,779 B2 FIG. 6A FIG. 68
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 US 8,281,779 B2 FIG. 9A FIG. 9C \l‘ 102'\ 208—12/ \102 /\I FIG. 9D
US. Patent 0a. 9, 2012 Sheet 11 0125 US 8,281,779 B2 68\ 258 /70 -/ I 255% 256 20 \_ ~ _/130 130/ [0.0 o o ooooooploooooooooocoooo o o o o] O t?j _ 2
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‘“““—-*
US. Patent 0a. 9, 2012 Sheet 13 0f 25 US 8,281,779 B2 335 Is a pizza detected on the conveyor? Y 340x, Reset Timer Fan = Low “‘370 l ¢ 345 Fan = High
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 \f'“435 410% Fan = High
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 490 4 r F 465*\~_, Temp
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 580 590 J, F
US 8,281,779 B2 Page2 U.S. PATENT DOCUMENTS 5,276,978 A 1/1994 Hopkins et a1. 3,721,805 A * 3/1973 Baiiatt ... .. 219/492 g’gg’ég
US. Patent 0a. 9, 2012 Sheet 17 0f 25 US 8,281,779 B2 r _ b _ _ _ _ _ _ _ _ - _ _ _ _ _ _-' L _ _ ? _ ~ _ _ _ _ _ _ _ _ _ _ _) Photo Sensor(s) K
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. 7,340,992 B1* 3/2008 Wolfe et al. ... .. 99
US. Patent 0a. 9, 2012 Sheet 1 0f 25 US 8,281,779 B2 20 26 \ 4‘2 FIG. 2
US 8,281,779 B2 Sheet 2 0f 25 Oct. 9, 2012 US. Patent m .QE 20 “to 20 “to 20 “to h o F D F Q mo>m>zoo 2m: mwgogm a“, ?@ x mm _ J on J 5 a“, g {V
US. Patent 0a. 9, 2012 Sheet 3 0f 25 US 8,281,779 B2 655 660 42 a a ‘\ ' Dis la s Controls : "i p y ; 650 22 a s < 5 g a? 62 Conveyor(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 L (RPM) / 0 > 71 Time FIG. 5A 60 (Left Burner) 62 (Right Burner)
Comments to this Manuals