Refrigeration – Article moving means – Continuous longitudinal-type conveyor
Reexamination Certificate
2005-12-20
2005-12-20
Tyler, Cheryl (Department: 3744)
Refrigeration
Article moving means
Continuous longitudinal-type conveyor
C062S378000
Reexamination Certificate
active
06976369
ABSTRACT:
A spiral freezer for continuous duty in continuous food process lines has a freezer compartment enclosing a double-helix arrangement, of which there is a helical run of a food-carrying conveyor in combination with a helical ramp or slideway for the food-carrying conveyor's helical run to ascend or descend on. The helical ramp is an assembly of numerous heat exchanger tubes, each wound helically and positioned in set lanes in the overall assembly of the ramp. An external refrigerant-circulating system is connected to circulate refrigerant through the heat exchanger tubes in order that hot components like compressors and condensers be kept outside of the freezer compartment for better energy efficiency. The foregoing conveyor and heat exchanger arrangement provides close proximity between the source(s) of heat in the food product on the conveyor and the sink of that heat to the refrigerant flowing inside the heat exchanger tubes.
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Product Brochure of Advanced Food Processing Equipment, Inc., entitled “Advanced I.Q.F. Spiral Freezer” (2 ledger-size sheets), undated.
Product Brochure of Frigoscandia Equipment, AB. entitled “Frigoscandia Classic Line” (5 sheets), undated.
EP Search Report, Appln. No. EP 04 00 0248 Date of Completion: Apr. 15, 2004 Date of Mailing: May 6, 2004.
EP Search Report Appln. No. EP 04 000 249 Date of Completion: Oct. 26, 2004: Date of Mailing: Nov. 5, 2004.
EP Search Report Appln. No. EP 04 000 249.5 Date of Completion: Oct. 26, 2004.
Bay Jonathan A.
Tyler Cheryl
Zec Filip
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