Dallas L Guilford, 6614213 County Road J, Wauseon, OH 43567

2013024, Sep 19, 2013

Mar 13, 2013

13/801277

Bruce Allen Eppink - Sylvania OH, US
Frederick David Morrison - Sylvania OH, US
Antonio Richard Galvan - Adrian MI, US
Christopher L. Schultz - Onsted MI, US
Dallas Guilford - Delta OH, US
James Byron Pickett - Portland IN, US
Richard Paul Muhlenkamp - Bryant IN, US
Stephen Dwayne Fouch - Portland IN, US
Tony D. Anderson - Berne IN, US

BLISSFIELD MANUFACTURING COMPANY - Blissfield MI

F28F 1/00

16510411

A heat exchanger assembly includes at least first and second coils adapted to contain a fluid therein and at least two support members securing the coils. Each of the first and second coils are individually formed of at least one tube including an inlet at an uppermost extent thereof and an outlet at a lowermost extent thereof and include a vertical column containing a plurality of horizontal rows and a plurality of bends at opposite ends of the horizontal rows and fluidically interconnecting the horizontal rows thereof in series to define a serpentine configuration. The first and second coils are adjacent each other and nested so that the horizontal rows of the first coil are parallel to the horizontal rows of the second coil and at least some of the horizontal rows of the first coil are disposed between adjacent pairs of the horizontal rows of the second coil.

2013029, Nov 14, 2013

May 13, 2013

13/892597

Dallas Guilford - Delta OH, US

Blissfield Manufacturing Company - Blissfield MI

F28F 1/00
B23P 15/26

165 67, 2989003

Heat exchanger assemblies and manufacturing methods that are capable of promoting continuously downward and/or horizontal flow of fluids through a coolant tube of a heat exchanger assemble to reduce the risk of internal clogging. The heat exchanger assembly includes at least one coil adapted to contain a fluid therein and at least two support members supporting the coil. The coil is formed of at least one tube having an inlet at an uppermost extent thereof, an outlet at a lowermost extent thereof, a plurality of parallel horizontal rows, and a plurality of bends at opposite ends of the horizontal rows and fluidically interconnecting the horizontal rows thereof in series to define a serpentine configuration. The coil is adapted to achieve a continuously downward and/or horizontal flow of the fluid therein.

5535820, Jul 16, 1996

Jul 18, 1995

8/503649

Gerald R. Beagle - Blissfield MI
Dallas L. Guilford - Delta OH
Charles E. Southward - Adrian MI
Dale C. Bellman - Pittsford MI

Blissfield Manufacturing Company - Blissfield MI

F28D 1047
F28F 132

165150

An improved method is provided for assembling a heat exchanger by mechanically joining one or more pairs of tubes with fins arranged in a fin pack. The method involves a novel external expansion technique that is performed between pairs of tubes and internally of the fin pack, in a manner that enhances the mechanical joint strength and metal-to-metal contact between the tubes and fins of the heat exchanger, while enabling the assembly process to be reduced to a single operation. Consequently, the method of this invention avoids the shortcomings of internal expansion techniques, and provides a significant improvement over prior art external expansion techniques. The method of this invention also yields a novel heat exchanger configuration, in which only facing surfaces of the tube within the fin pack are deformed in order to expand and mechanically join the tube to the fins. Finally, the present invention also encompasses a unique expansion tool for externally expanding the tube portions within the fin pack.