William Lee Topper

Address:

1600 Trigg City Rd, Cornersville, TN 37047

VIN:

1HD1JB5177Y033148

Year:

2007

US Patent:

8037595, Oct 18, 2011

Filed:

Jun 16, 2009

Appl. No.:

12/485370

Inventors:

Dan Dees - Houston TX, US
Eric Garza - Houston TX, US
Stephen Merschat - Houston TX, US
Sean Mosser - Spring TX, US
Andrew Overturff - Katy TX, US
Dale Stetson - Houston TX, US
William Topper - Pinehurst TX, US

Assignee:

Goodman Global, Inc. - Houston TX

International Classification:

B23P 15/26
B21D 39/08

US Classification:

297265, 29726, 29727, 29523, 2989004, 29890044

Abstract:

An improved hairpin expander machine equipped with a closed-loop-controlled hydraulically positioned bolster plate and a heat exchanger-holding fixture characterized by a full-length, continuous front plate, back plate, and side rails. The hairpin expander includes a novel heat exchanger bottom end plate clamping mechanism as part of the fixture. These features enable the hairpin expander to provide larger expansion ratios and exert greater forces with tighter control, which is required for producing heat exchangers with reduced diameter hairpin tubes according to a preferred embodiment of the invention.

US Patent:

20090308583, Dec 17, 2009

Filed:

Jun 13, 2008

Appl. No.:

12/139379

Inventors:

Dan Dees - Houston TX, US
Eric Garza - Houston TX, US
Stephen Merschat - Houston TX, US
Sean Mosser - Spring TX, US
Andrew Overturff - Katy TX, US
Dale Stetson - Houston TX, US
William Topper - Pinehurst TX, US

International Classification:

F28F 1/20
B21D 53/06

US Classification:

165181, 29890046

Abstract:

According to a preferred embodiment, an improved method and apparatus for manufacturing tube and fin heat exchangers that includes a step for reducing the outer diameter of stock tubing to a value well below nominal prior to bending the tubing into hairpins. The reduced diameter increases the stiffness of the resultant hairpins and allows for efficient lacing of the heat exchanger fins and end plates. The method uses pre-size rollers that are adjustable for reducing the diameter of the tubing. The invention also includes a hairpin and heat exchanger manufactured according to the method.

US Patent:

20110314675, Dec 29, 2011

Filed:

Sep 1, 2011

Appl. No.:

13/224203

Inventors:

Dan Dees - Houston TX, US
Eric Garza - Houston TX, US
Stephen Merschat - Houston TX, US
Sean Mosser - Spring TX, US
Andrew Overturff - Katy TX, US
Dale Stetson - Houston TX, US
William Topper - Pinehurst TX, US

International Classification:

B23P 15/26

US Classification:

29890046

Abstract:

According to a preferred embodiment, an improved method and apparatus for manufacturing tube and fin heat exchangers that includes a step for reducing the outer diameter of stock tubing to a value well below nominal prior to bending the tubing into hairpins. The reduced diameter increases the stiffness of the resultant hairpins and allows for efficient lacing of the heat exchanger fins and end plates. The method uses pre-size rollers that are adjustable for reducing the diameter of the tubing.