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Larry J. Ashton
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Thousand Oaks, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Dual fuel boiler
Patent number
6,904,873
Issue date
Jun 14, 2005
Rheem Manufacturing Company
Larry J. Ashton
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information
Patent Grant
Securement of heat exchanger surfaces to tubes by lock seaming and...
Patent number
4,160,476
Issue date
Jul 10, 1979
Raypak, Inc.
Larry J. Ashton
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Securement of heat exchanger surfaces to tubes and method of fabric...
Patent number
4,158,908
Issue date
Jun 26, 1979
Raypak, Inc.
Leo Block
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Temperature control of heat exchanger with bypass
Patent number
4,086,956
Issue date
May 2, 1978
Raypak, Incorporated
Leo Block
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Control valve means particularly adapted for swimming pool heater i...
Patent number
4,061,132
Issue date
Dec 6, 1977
Larry Ashton
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Servo modulating regulating control system
Patent number
3,997,107
Issue date
Dec 14, 1976
Raypak, Inc.
Leo Block
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Patents Applications
last 30 patents
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Patent Application
Dual fuel boiler with backflow-preventing valve arrangement
Publication number
20070154856
Publication date
Jul 5, 2007
Raymond Hallit
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES