US4523520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Meat processing equipment
Assignee: NORTH SIDE PACKING COMPANY 2200 SPRING GARDEN AVE PITTSBURGH PA 15212 A CORP OF
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Filing: 1984-01-17
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Granted: 1985-06-18
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Expires: 2004-01-17
Abstract
Abstract A continuous meat processing line having a patty-forming machine at the inlet end, a cooking portion, a transfer section, a quick freeze section and a packing section at the outlet end. The cooking portion has a first cooking section adjacent to the patty-forming machine and a second cooking section in line with the first cooking section. Each cooking section has a conveyor belt for moving patties through the cooking section. A plurality of heating units are spaced above the conveyor belt in each cooking section and a plurality of individual radiant heaters are located in each heating unit. A water tray is located below each conveyor belt and a drain trough is connected with the water trays.
Inventors
- 👤 Richard E. Hofmann
- 👤 Robert G. Hofmann, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:09
CPC Classifications
A; A23; A23B; A23B4/00; A23B4/06; A23B4/062; A23B4/064; A47; A47J; A47J37/00
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
273 words
In a continuous meat processing line having inlet and outlet ends, a patty-forming machine at the inlet end, a cooking portion, a transfer section having at least one conveyor belt, a freeze section and a packing section at the outlet end, the improvement comprising said cooking portion having a first cooking section aligned with said patty-forming machine and a second cooking section aligned with said first cooking section, said first cooking section having a conveyor belt with a discharge end and a receiving end for receiving patties from said patty-forming machine, means supporting said conveyor belt for movement in said first cooking section, means for driving said conveyor belt, at least one heating unit in said first cooking section located above said conveyor belt, said heating unit having a plurality of individual radiant heaters, a water tray located below said conveyor belt and said heating unit, said second cooking section having a conveyor belt with a discharge end and a receiving end for receiving patties from said discharge end of said conveyor belt in said first cooking section, means supporting said conveyor belt for movement in said second cooking section, means for driving said conveyor belt, at least one heating unit in said second cooking section located above said conveyor belt, said heating unit having a plurality of individual radiant heaters, a water tray located below said conveyor belt in said second heating section and said heating unit, said discharge end of said conveyor belt in said second cooking section discharging patties onto said conveyor belt in said transfer section for transfer to said freezer section, and means to drain said water trays.
Claim 2
Dependent Claim
273 words
In a continuous meat processing line having inlet and outlet ends, a patty-forming machine at the inlet end, a cooking portion, a transfer section having at least one conveyor belt, a freeze section and a packing section at the outlet end, the improvement comprising said cooking portion having a first cooking section aligned with said patty-forming machine and a second cooking section aligned with said first cooking section, said first cooking section having a conveyor belt with a discharge end and a receiving end for receiving patties from said patty-forming machine, means supporting said conveyor belt for movement in said first cooking section, means for driving said conveyor belt, at least one heating unit in said first cooking section located above said conveyor belt, said heating unit having a plurality of individual radiant heaters, a water tray located below said conveyor belt and said heating unit, said second cooking section having a conveyor belt with a discharge end and a receiving end for receiving patties from said discharge end of said conveyor belt in said first cooking section, means supporting said conveyor belt for movement in said second cooking section, means for driving said conveyor belt, at least one heating unit in said second cooking section located above said conveyor belt, said heating unit having a plurality of individual radiant heaters, a water tray located below said conveyor belt in said second heating section and said heating unit, said discharge end of said conveyor belt in said second cooking section discharging patties onto said conveyor belt in said transfer section for transfer to said freezer section, and means to drain said water trays.
Claim 3
Dependent Claim
121 words
In a meat processing line according to claim 1, adjustable rollers supporting said discharge end of said conveyor belt in said first cooking section, means for adjusting the vertical position of said adjustable rollers to adjust the height of said discharge end of said conveyor belt in said first cooking section, deflector means located below said discharge end of said conveyor belt in said first cooking section and above said receiving end of said conveyor belt in said second cooking section, whereby patties discharge from said discharge end of said conveyor belt in said first cooking section contact said deflector means and are turned over prior to contact with said receiving end of said conveyor belt in said second cooking section.
Claim 4
Dependent Claim
78 words
In a meat processing line as set forth in claim 1, a deflector located below said discharge end of said conveyor belt in said second cooking section and above the receiving end of said conveyor belt in said transfer section, whereby patties discharged from said discharge end of said conveyor belt in said second cooking section contact said deflector and are turned over prior to contact with the receiving end of said conveyor belt in said transfer section.
Claim 5
Dependent Claim
124 words
In a meat processing line according to claim 1, wherein said means supporting said conveyor belts in said first and second cooking sections is a plurality of substantially horizontal support rollers, a conveyor support frame in each of said cooking sections, said support frames having spaced side rails and aligned holes in said side rails, each of said support rollers extending through a pair of aligned holes in said side rails, one end of each of said support rollers formed with a flange having a diameter larger than the diameter of said holes, said flange located at the outer surface of one of said side rails, whereby said support rollers are free to expand and contract longitudinally and move relative to said side rails.
Claim 6
Dependent Claim
99 words
In a meat processing line according to claim 4, a plurality of spaced brackets supported on the exterior surface of said side rail which is adjacent to said flange on one end of said support rollers, elongated stop members supported in said brackets, whereby longitudinal expansion of said support rollers moves said flange on one end of said support rollers into contact with a stop member to prevent said support rollers from moving longitudinally to an extent that the ends of said support rollers in the opposite side rail fall out of the holes in the opposite side rail.
Claim 7
Dependent Claim
61 words
In a meat processing line as set forth in claim 1, wherein each of said heating units includes a separate frame, each of said frames including means carrying said individual radiant heaters, roller casters mounted on the bottom of each of said frames, whereby said separate frames and said heating units may be removed from said meat processing line for cleaning.
Claim 8
Dependent Claim
162 words
In a meat processing line according to claim 1, wherein each of said individual radiant heaters in said heating units has a housing, said housing having imperforate side walls, end walls and a top wall, the bottom wall of said housing comprising a first porous ceramic member and a metal grid located below and spaced from said porous ceramic member, an elongated tube extending through one of said end walls into the interior of said housing, a plurality of longitudinally and angularly spaced slots in said elongated tube, means for supplying a combustible gas-air mixture to said tube and to the interior of said housing through said slots in said tube, electric ignition means located within said housing, whereby a gas-air mixture flowing out of said plurality of slots into the interior of said housing is ignited by said electric ignition means and heats said ceramic member to radiate heat downwardly onto said conveyor belts in said first and second cooking sections.
Claim 9
Dependent Claim
130 words
In a meat processing line according to claim 7, wherein the end of said elongated tube outside of said housing is provided with flange means, means attaching said flange means to said one end wall of said housing to hold said elongated tube in place on said housing, a union attached to the outer end of said elongated tube and spaced therefrom, a gas nozzle extending from said union and axially aligned with said elongated tube and a pipe connected to said union to supply gas to said nozzle, whereby gas passing from said nozzle into the outer end of said elongated tube entrains air into said elongated tube and said gas-air mixture passes out of said tube through said elongated slots into said housing for combustion within said housing.
Claim 10
Dependent Claim
127 words
In a meat processing line according to claim 8, control means for gas flowing through said pipe to said nozzle and for said electric ignition means, said control means comprising an electric circuit having an on-off switch, a capacitor connected to said on-off switch and a solenoid control means connected to said on-off switch, a solenoid operated valve for controlling gas flow through said pipe to said nozzle, whereby when said solenoid opens said valve to permit gas to flow through said pipe to said nozzle and into said elongated tube and said housing, said electric ignition means is actuated by said capacitor in said circuit to spark within said housing and ignite the gas-air mixture flowing into said housing through said elongated slots in said tube.
Claim 11
Dependent Claim
59 words
In a meat processing line according to claim 9, wherein each of said individual radiant heaters in a heating unit has a separate control means and each of said control means includes an electric circuit having an on-off switch, a capacitor, a solenoid control means and a solenoid valve for controlling gas flow through said pipe to said nozzle.
Claim 12
Dependent Claim
90 words
In a meat processing line according to claim 10, a closed control cabinet, said control means for each of said individual radiant heaters in a heating unit being located within said closed control cabinet to protect said control means from dirt and grease created during cooking, said closed cabinet being provided with openings for movement of air into said cabinet to cool said control means and a wire mesh filter located in each of said openings to prevent the passage of dirt and grease into the interior of said cabinet.
Claim 13
Dependent Claim
131 words
A continuous meat processing line having a patty-forming machine, at least one cooking section adjacent to said patty-forming machine and a freeze section, said cooking section having a pervious conveyor belt with a discharge end and a receiving end for receiving patties from said patty-forming machine and discharging patties, means supporting said conveyor belt for movement through said cooking section, means for driving said conveyor belt, at least one heating unit in said cooking section, said heating unit having a plurality of individual radiant heaters located above and spaced from said conveyor belt, a water tray located below said conveyor belt and said heating unit and means to drain said tray, whereby patties on said conveyor belt in said cooking section are cooked by radiant heat from said individual radiant heaters.
Claim 14
Dependent Claim
131 words
A continuous meat processing line having a patty-forming machine, at least one cooking section adjacent to said patty-forming machine and a freeze section, said cooking section having a pervious conveyor belt with a discharge end and a receiving end for receiving patties from said patty-forming machine and discharging patties, means supporting said conveyor belt for movement through said cooking section, means for driving said conveyor belt, at least one heating unit in said cooking section, said heating unit having a plurality of individual radiant heaters located above and spaced from said conveyor belt, a water tray located below said conveyor belt and said heating unit and means to drain said tray, whereby patties on said conveyor belt in said cooking section are cooked by radiant heat from said individual radiant heaters.
Claim 15
Dependent Claim
118 words
A meat processing line according to claim 12, wherein said means supporting said conveyor belt in said cooking section is a plurality of substantially horizontal support rollers, a conveyor support frame in said cooking section, said support frame having spaced side rails and aligned holes in said side rails, each of said support rollers extending through a pair of aligned holes in said side rails, one end of each of said support rollers formed with a flange having a diameter larger than the diameter of said holes, said flange located at the outer surface of one of said side rails, whereby said support rollers are free to expand and contract longitudinally and move relative to said side rails.
Claim 16
Dependent Claim
99 words
A meat processing line according to claim 13, including a plurality of spaced brackets supported on the exterior surface of said side rail which is adjacent to said flange on one end of said support rollers, elongated stop members supported in said brackets, whereby longitudinal expansion of said support rollers moves said flange on one end of said support rollers into contact with a stop member to prevent said support rollers from moving longitudinally to an extent that the ends of said support rollers in the opposite side rail fall out of the holes in the opposite side rail.
Claim 17
Dependent Claim
54 words
A meat processing line as set forth in claim 12, wherein said heating unit includes a separate frame, said frame including means carrying said individual radiant heaters, roller casters mounted on the bottom of said frame, whereby said separate frame and said heating units may be removed from said meat processing line for cleaning.
Claim 18
Dependent Claim
158 words
A meat processing line according to claim 12, wherein each of said individual radiant heaters in said heating unit has a housing, said housing having imperforate side walls, end walls and a top wall, the bottom wall of said housing comprising a first porous ceramic member and a metal grid located below and spaced from said porous ceramic member, an elongated tube extending through one of said end walls into the interior of said housing, a plurality of longitudinally and angularly spaced slots in said elongated tube, means for supplying a combustible gas-air mixture to said tube and to the interior to said housing through said slots in said tube, electric ignition means located within said housing, whereby a gas-air mixture flowing out of said plurality of slots into the interior of said housing is ignited by said electric ignition means and heats said ceramic member to radiate heat downwardly onto said conveyor belt in said cooking section.
Claim 19
Dependent Claim
129 words
A meat processing line according to claim 16, wherein the end of said elongated tube outside of said housing is provided with flange means, means attaching said flange means to said one end wall of said housing to hold said elongated tube in place on said housing, a union attached to the outer end of said elongated tube and spaced therefrom, a gas nozzle extending from said union and axially aligned with said elongated tube and a pipe connected to said union to supply gas to said nozzle, whereby gas passing from said nozzle into the outer end of said elongated tube entrains air into said elongated tube and said gas-air mixture passes out of said tube through said elongated slots into said housing for combustion within said housing.
Claim 20
Dependent Claim
116 words
A meat processing line according to claim 17 including, control means for gas flowing through said pipe to said nozzle and for said electric ignition means, said control means comprising an electric circuit having an on-off switch, a capacitor connected to said on-off switch and a solenoid control means connected to said on-off switch, a solenoid operated valve for controlling gas flow through said pipe to said nozzle, whereby when said solenoid opens said valve to permit gas to flow through said pipe to said nozzle and into said elongated tube and said housing, said electric ignition means is actuated by said capacitor in said circuit to spark within said housing and ignite the gas-air mixture.
Claim 21
Dependent Claim
58 words
A meat processing line according to claim 18, wherein each of said individual radiant heaters in said heating unit has a separate control means and each of said control means includes an electric circuit having an on-off switch, a capacitor, a solenoid control means and a solenoid valve for controlling gas flow through said pipe to said nozzle.
Claim 22
Dependent Claim
91 words
A meat processing line according to claim 19, including a closed control cabinet, said control means for each of said individual radiant heaters in said heating unit being located within said closed control cabinet to protect said control means from dirt and grease created during cooking, said closed control cabinet being provided with openings for movement of air into said cabinet to cool said control means and a wire mesh filter located in each of said openings to prevent the passage of dirt and grease into the interior of said cabinet.
Claim 23
Dependent Claim
196 words
Equipment for cooking patties in a meat processing line, said equipment comprising a first cooking section and a second cooking section aligned with said first cooking section, said first cooking section having a conveyor belt with a discharge end and a receiving end for receiving patties, means supporting said conveyor belt for movement in said first cooking section, means for driving said conveyor belt, at least one heating unit in said first cooking section located above said conveyor belt, said heating unit having a plurality of individual gas fired radiant heaters, a water tray located below said conveyor belt, said second cooking section having a conveyor belt with a discharge end and a receiving end for receiving patties from said discharge end of said conveyor belt in said first cooking section, means supporting said conveyor belt for movement in said second cooking section, means for driving said conveyor belt, at least one heating unit in said second cooking section located above said conveyor belt, said heating unit having a plurality of individual gas fired radiant heaters, a water tray located below said conveyor belt in said second heating section, and means to drain said water trays.
Claim 24
Dependent Claim
196 words
Equipment for cooking patties in a meat processing line, said equipment comprising a first cooking section and a second cooking section aligned with said first cooking section, said first cooking section having a conveyor belt with a discharge end and a receiving end for receiving patties, means supporting said conveyor belt for movement in said first cooking section, means for driving said conveyor belt, at least one heating unit in said first cooking section located above said conveyor belt, said heating unit having a plurality of individual gas fired radiant heaters, a water tray located below said conveyor belt, said second cooking section having a conveyor belt with a discharge end and a receiving end for receiving patties from said discharge end of said conveyor belt in said first cooking section, means supporting said conveyor belt for movement in said second cooking section, means for driving said conveyor belt, at least one heating unit in said second cooking section located above said conveyor belt, said heating unit having a plurality of individual gas fired radiant heaters, a water tray located below said conveyor belt in said second heating section, and means to drain said water trays.
Claim 25
Dependent Claim
120 words
Equipment as set forth in claim 21 including, adjustable rollers supporting said discharge end of said conveyor belt in said first cooking section, means for adjusting the vertical position of said adjustable rollers to adjust the height of said discharge end of said conveyor belt in said first cooking section, deflector means located below said discharge end of said conveyor belt in said first cooking section and above said receiving end of said conveyor belt in said second cooking section, whereby patties discharged from said discharge end of said conveyor belt in said first cooking section contact said deflector means and are turned over prior to contact with said receiving end of said conveyor belt in said second cooking section.
Claim 26
Dependent Claim
47 words
Equipment as set forth in claim 22 including, a deflector located below said discharge end of said conveyor belt in said second cooking section, whereby patties discharged from said discharge end of said conveyor belt in said second cooking section contact said deflector and are turned over.
Claim 27
Dependent Claim
123 words
Equipment as set forth in claim 21, wherein said means for supporting said conveyor belts in said first and second cooking sections is a plurality of substantially horizontal support rollers, a conveyor support frame in each of said cooking sections, said support frames having spaced side rails and aligned holes in said side rails, each of said support rollers extending through a pair of aligned holes in said side rails, one end of each of said support rollers formed with a flange having a diameter larger than the diameter of said holes, said flange located at the outer surface of one of said side rails, whereby said support rollers are free to expand and contract longitudinal and move relative to said side rails.
Claim 28
Dependent Claim
98 words
Equipment as set forth in claim 24 including, a plurality of spaced brackets supported on the exterior surface of said side rail which is adjacent to said flange on one end of said support rollers, elongated stop members supported in said brackets, whereby longitudinal expansion of said support rollers moves said flange on one end of said support rollers into contact with a stop member to prevent said support rollers from moving longitudinally to an extent that the ends of said support rollers in the opposite side rail fall out of the holes in the opposite side rail.
Claim 29
Dependent Claim
57 words
Equipment as set forth in claim 21, wherein each of said heating units includes a separate frame, each of said frames including means carrying said individual radiant heaters, roller casters mounted on the bottom of each of said frames, whereby said separate frames and said heating units may be removed from said meat processing line for cleaning.
Claim 30
Dependent Claim
160 words
Equipment as set forth in claim 21, wherein each of said individual radiant heaters in said heating units has a housing, said housing having imperforate side walls, end walls and a top wall, the bottom wall of said housing comprising a first porous ceramic member and a metal grid located below and spaced from said porous ceramic member, an elongated tube extending through one of said end walls into the interior of said housing, a plurality of longitudinally and angularly spaced slots in said elongated tube, means for supplying a combustible gas-air mixture to said tube and to the interior of said housing through said slots in said tube, electric ignition means located within said housing, whereby a gas-air mixture flowing out of said plurality of slots into the interior of said housing is ignited by said electric ignition means and heats said ceramic member to radiate heat downwardly onto said conveyor belts in said first and second cooking sections.
Claim 31
Dependent Claim
103 words
Equipment as set forth in claim 27 including, control means for gas flowing to said tube and for said electric ignition means, said control means comprising an electric circuit having an on-off switch, a capacitor connected to said on-off switch and a solenoid control means connected to said on-off switch, a solenoid operated valve for controlling the flow of gas to said tube, whereby when said solenoid opens said valve to permit gas to flow to said tube and said housing, said electric ignition means is actuated by said capacitor in said circuit to spark within said housing and ignite the gas-air mixture.
Claim 32
Dependent Claim
54 words
Equipment as set forth in claim 28, wherein each of said individual radiant heaters in a heating unit has a separate control means and each of said control means includes an electric circuit having an on-off switch, a capacitor, a solenoid control means and a solenoid valve for controlling gas flow to said tube.
Claim 33
Dependent Claim
88 words
Equipment as set forth in claim 29 including a closed control cabinet, said control means for each of said individual radiant heaters in a heating unit is located within said closed control cabinet to protect said control means from dirt and grease created during cooking, said closed control cabinet being provided with openings for movement of air into said cabinet to cool said control means and a wire mesh filter located in each of said openings to prevent dirt and grease from entering the interior of said cabinet.
References Cited (Backward Citations)
US2529253A
Cited
US3041959A
Cited
US3491679A
Cited
US3721178A
Cited
GB1403490A
Cited
US4213380A
Cited
US4444558A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-17 | 1988-12-17 | 1989-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-17 | 1992-12-17 | 1993-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-17 | 1996-12-17 | 1997-06-18 | $7700.00 | Window Closed / Lapsed |