George C. Briley
Engineering in San Antonio, TX

6796139, Sep 28, 2004

Feb 27, 2003

10/375521

George Briley - San Antonio TX
Joe Sopko - Cedar Grove WI

Layne Christensen Company - Mission Woods KS

F25D 2312

62260, 62235, 62335

A ground freezing method and system which circulates refrigerated heat transfer fluid through freeze pipes in the ground at a low temperature of at least -52° C. (-62° F. ) to minimize drilling for the freeze pipe installation. The heat transfer fluid is preferably aqua ammonia (ammonium hydroxide) because of its beneficial characteristics in this application. The circulating heat transfer fluid is preferably cooled by a refrigeration system that includes low and high stage cycles arranged in a cascade relationship and using ammonia or another refrigerant in the high stage refrigeration system and carbon dioxide as the refrigerant in the low stage refrigeration system.

4612780, Sep 23, 1986

Dec 20, 1985

6/811340

George C. Briley - San Antonio TX
Peter Y. M. Pao - San Antonio TX

Refrigeration Engineering Corporation - San Antonio TX

F25D 2502

62381

An apparatus for the air treating of articles such as comestibles carried on a spiral conveyor has air deflecting baffles, and the housing in which the conveyor is mounted has air reentrant chambers associated with the baffles so that the flow of air through the housing traverses the belt when impeded from flowing directly through the belt by large articles to be cooled or frozen lying thereon.

4301659, Nov 24, 1981

Sep 10, 1980

6/185997

Walter H. Martin - San Antonio TX
George C. Briley - San Antonio TX
Peter Y. M. Pao - San Antonio TX

Refrigeration Engineering Corporation - San Antonio TX

F25D 1700

62 57

Articles of food to be frozen are delivered to an article conditioning conveyor and are maintained in a fluidized state by refrigerated air flowing upwardly therethrough. The conveyor is driven forwardly but is interrupted by at least one downward stepping movement, causing a thinning of the product bed and a rapid increase in air velocity to thus cool and separate the food articles preventing them from freezing to one another. The food articles are thereafter subjected to deep bed mass fluidization by flowing freezing air therethrough in a fluidized state.

4281521, Aug 4, 1981

Dec 5, 1979

6/100527

Walter H. Martin - San Antonio TX
George C. Briley - San Antonio TX
Peter Y. Pao - San Antonio TX

Refrigeration Engineering Corporation - San Antonio TX

F25D 2504

62380

Articles of food to be frozen are delivered to an article conditioning conveyor and are maintained in a fluidized state by refrigerated air flowing upwardly therethrough. The conveyor is driven forwardly but is interrupted by at least one downward stepping movement, causing a thinning of the product bed and a rapid increase in air velocity to thus cool and separate the food articles preventing them from freezing to one another. The food articles are thereafter subjected to deep bed mass fluidization by flowing freezing air therethrough in a fluidized state.

4401449, Aug 30, 1983

Apr 29, 1982

6/373054

Walter H. Martin - San Antonio TX
George C. Briley - San Antonio TX

Refrigeration Engineering Corporation - San Antonio TX

F25C 100

62 59

A slush ice maker includes a fluid chiller having water circulation tubes in which water flowing therethrough is deeply cooled to about 32. degree. F. , a water conduit system coupled with the chiller and including a high pressure pump for pumping water through the tubes at a pressure of about 2 to 4 atmospheres and at a velocity in excess of 9 ft. per second to effect the formation of ice crystals in the water so as to define the slush ice. The ice and water mixture is discharged into an ice accumulation tank maintained at atmospheric pressure so that the formation of ice crystals are enhanced when the pressure of the slush ice is reduced to atmospheric at the tank.