Darryl G. Hurmi

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Elk Grove Village, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for controlling unit ventilators
- Patent number 5,323,961
- Issue date Jun 28, 1994
- Landis & Gyr Powers, Inc.
- Darryl G. Hurmi
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Cascaded control apparatus for controlling unit ventilators
- Patent number 5,207,379
- Issue date May 4, 1993
- Landis & Gyr Powers, Inc.
- Darryl G. Hurmi
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Output pressure control apparatus
- Patent number 5,174,333
- Issue date Dec 29, 1992
- Landis & Gyr Powers, Inc.
- Darryl G. Hurmi
- F24 - HEATING RANGES VENTILATING