1
William H McMahon, Louis F Fraula, Stuart E Athey, Thomas M Johnson, Terrence W Moore: Continuous duty chemically sanitizing batch rinse system. Hobart Corporation, Biebel French & Nauman, August 25, 1981: US04285352 (21 worldwide citation)

A chemically sanitizing rinse solution is prepared in batches of variable sizes, but with a preselected substantially constant proportion of water and chemical sanitizing agent, in a rinse solution mixing tank, for demand consumption on a continuous duty basis, by delivering the sanitizing agent to, ...


2
Louis F Fraula, Stuart E Athey: Apparatus for rinsing and chemically sanitizing food ware items. Hobart Corporation, April 3, 1979: US04147559 (21 worldwide citation)

A low wash and rinse temperature (120.degree.-140.degree. F.) warewasher accomplishes the same general washing and rinsing effectiveness as a conventional high temperature (150.degree. F. minimum wash, 180.degree. F. minimum rinse) warewasher without loss of productivity resulting from time lost bet ...


3
Buddy F Lane, Louis F Fraula: Method for air transport of sanitizing liquid to a warewasher. Hobart Corporation, Biebel French & Nauman, June 24, 1980: US04209343 (9 worldwide citation)

A rapidly moving air stream transports an air unstable sanitizing agent such as sodium hypochlorite from a liquid supply thereof directly to a tank containing water, such as the wash chamber of a dishwasher. The air is driven through a venturi powered aspirator which injects the sanitizing agent int ...


4
Louis F Fraula: Thermal protection for dishwashing machine. Hobart Corporation, Biebel French & Nauman, September 28, 1976: US03982552 (8 worldwide citation)

A dishwashing machine having a gas-fired heater is provided with a flue structure having wall portions common to the tank and wash chamber of the machine. While the machine is running liquid splashes against these wall portions and exchanges heat therewith. When the water circulation system is stopp ...


5
Louis F Fraula, William H McMahon, Thomas B Heckman: Warewashing machine splashover return system. Hobart Corporation, Biebel French & Nauman, July 28, 1981: US04280520 (7 worldwide citation)

A liquid collection pan in the wash compartment below the opening thereinto from the prewash compartment has a shielded slot directed toward the opening which captures and returns liquid entering the wash compartment from the prewash compartment.


6
Louis F Fraula, Gary V Hoying: Method and apparatus for removing moisture from wet pulp. Hobart Corporation, July 15, 1980: US04212239 (5 worldwide citation)

An improved method and apparatus is provided to control the moisture content of pulp which is discharged from a press. During operation of the press, slurry containing the pulp enters the press and engages a screw which is rotated to feed the pulp upwardly in the press. As the wet pulp moves upwardl ...


7
Louis F Fraula, Stuart E Athey: Method for rinsing and chemically sanitizing food ware items. Hobart Corporation, April 3, 1979: US04147558 (4 worldwide citation)

F.) warewasher low wash and rinse temperature (120.degree.-140.degree. F.) WareWasher accomplishes the same general washing and rinsing effectiveness as a conventional high temperature (150.degree. F. minimum wash, 180.degree. F. minimum rinse) warewasher without loss of productivity resulting from ...


8
George Churley, Louis F Fraula: Warewasher sanitizer vented metering system. Hobart Corporation, Biebel French & Nauman, October 21, 1980: US04229229 (1 worldwide citation)

A liquid sanitizing agent is drawn into a capillary conduit section of defined volume, then separated from the supply thereof by opening an atmospheric back pressure vent at the lower end of the capillary section at substantially the same time said capillary section is filled. The sanitizing agent i ...


9
Louis F Fraula, Stuart E Athey: Apparatus for rinsing and chemically sanitizing food ware items. Hobart Corporation, Biebel French & Nauman, January 13, 1981: USRE030478

A low wash and rinse temperature (120.degree.-140.degree. F.) warewasher accomplishes the same general washing and rinsing effectiveness as a conventional high temperature (150.degree. F. minimum wash, 180.degree. F. minimum rinse) warewasher without loss of productivity resulting from time lost bet ...


10
Louis F Fraula, Stuart E Athey: Method for rinsing and chemically sanitizing food ware items. Hobart Corporation, Biebel French & Nauman, March 3, 1981: USRE030537

A low wash and rinse temperature (120.degree.-140.degree. F.) warewasher accomplishes the same general washing and rinsing effectiveness as a conventional high temperature (150.degree. F. minimum wash, 180.degree. F. minimum rinse) warewasher without loss of productivity resulting from time lost bet ...