Patrick Daniel Bailey

US Patent:

7290402, Nov 6, 2007

Filed:

Dec 29, 2003

Appl. No.:

10/747460

Inventors:

Patrick M. Bailey - Snellville GA, US

Assignee:

Heatcraft Refrigeration Products LLC - Stone Mountain GA

International Classification:

F25B 41/04

US Classification:

62225, 236 92 B

Abstract:

An expansion valve control system, a method of controlling an expansion valve and a refrigeration unit incorporating the same. In one embodiment, the expansion valve control system includes (1) a superheat error circuit configured to derive a superheat error for a fluid associated with the expansion valve and (2) a valve position circuit, associated with the superheat error circuit, configured to reposition the expansion valve proportionally based on both a current position thereof and the superheat error.

US Patent:

7511505, Mar 31, 2009

Filed:

Dec 17, 2003

Appl. No.:

10/738319

Inventors:

Patrick M. Bailey - Snellville GA, US
Raynald C. Clarke - Snellville GA, US

Assignee:

Heatcraft Refrigeration Products LLC - Stone Mountain GA

International Classification:

G01R 31/14
G01R 31/04
G08B 21/00
H01R 3/00
H02H 5/04
F25B 49/00

US Classification:

324511, 324538, 340638, 439489, 361104, 62125

Abstract:

A centralized connector module, a refrigeration unit and a method of assembling a refrigeration unit. In one embodiment, the centralized connector module includes (1) a dielectric body having interconnected terminal sets corresponding to components connectable thereacross and (2) continuity indicator circuits associated with at least some of the terminal sets and configured to indicate continuity faults with respect to connected ones of the components.

US Patent:

7716936, May 18, 2010

Filed:

Jun 26, 2006

Appl. No.:

11/475295

Inventors:

Patrick M. Bailey - Snellville GA, US
Ira Zelman Richter - Lilburn GA, US
Donald Victor McNemar - Lawrenceville GA, US

Assignee:

Heatcraft Refrigeration Products, L.L.C. - Stone Mountain GA

International Classification:

F25D 21/06
F25D 21/00
F25D 19/00

US Classification:

62151, 62 80, 62155, 62298

Abstract:

A method for affecting a scheduled defrost operation for a refrigeration system includes the steps of: (a) after an extant the scheduled defrost operation commences, evaluating at least one predetermined parameter relating to operation of the refrigeration system; (b) if the at least one predetermined parameter manifests a behavior of at least one first predetermined nature over at least one first time interval, continuing the extant scheduled defrost operation; and (c) if the at least one predetermined parameter manifests a behavior of at least one second predetermined nature over at least one second time interval, discontinuing the extant scheduled defrost operation.