WILLIAM BRIAN GRIFFIN
Engineers in Kinderhook, PA

License number
Pennsylvania PE085059
Category
Engineers
Type
Professional Engineer
Address
Address
Kinderhook, PA 17512

Professional information

William Griffin Photo 1

Kitchen Hood Assembly With Fire Suppression Control System Including Multiple Monitoring Circuits

US Patent:
8378834, Feb 19, 2013
Filed:
Dec 7, 2009
Appl. No.:
12/632063
Inventors:
William E. Glaub - Raleigh NC, US
William Brian Griffin - Columbia PA, US
Assignee:
Captive-Aire Systems, Inc. - Raleigh NC
International Classification:
G08B 21/00
US Classification:
340635, 340540, 169 56
Abstract:
A kitchen exhaust hood assembly having a fire suppression system with built-in redundancy and monitoring capabilities is presented. The fire suppression system includes one or more fire suppression devices associated with the kitchen hood for extinguishing a fire within the vicinity of the exhaust hood. The fire suppression devices can be triggered by a series of manual actuators or fire sensors. A switching circuit including a plurality of switches operatively connected to the manual actuators or fire sensors triggers the fire suppression devices by enabling either a first or second actuating circuit. The switching circuit and first and second actuating circuits are configured such that a break in the electrical connection between the switches and actuating circuits does not cause a failure in the operation of the fire suppression system. A supervision module is included in the assembly for monitoring the elements of the fire suppression system. The supervision module includes a plurality of monitoring circuits for monitoring the integrity of the electrical connections and the correct physical placement of various fire suppression system devices.


William Griffin Photo 2

Heated Makeup Air Unit

US Patent:
2011007, Apr 7, 2011
Filed:
Oct 2, 2009
Appl. No.:
12/572787
Inventors:
William Brian Griffin - Columbia PA, US
Brandon Charles Wellington - Philadelphia PA, US
Assignee:
Captive-Aire Systems, Inc. - Raleigh NC
International Classification:
F24D 5/02, F23N 5/00, F24D 19/10
US Classification:
237 53, 110191, 237 81
Abstract:
A heated air makeup unit comprising a heating chamber with a modulated furnace one or more non-modulated furnaces air temperature control and efficient furnace operation over a wide heating rate range. The utilization of indirect fired furnaces in the heated air makeup unit is disclosed. A control system is included to provide control of heated air temperature to within +/−1 F.° using continuous control of the heating rate of the modulated furnace and stepwise activation and de-activation of the non-modulated furnaces in response to heating demand. A programmed combustion air flow controller programmed to provide optimal airflow for any gas flow in a flow range of a modulating gas valve is provided to assure combustion efficiencies of at least %.


William Griffin Photo 3

Kitchen Hood Assembly With Fire Suppression Control System And Built-In Redundancy

US Patent:
8610601, Dec 17, 2013
Filed:
Sep 14, 2012
Appl. No.:
13/616301
Inventors:
William E. Glaub - Raleigh NC, US
William Brian Griffin - Columbia PA, US
Assignee:
Captive-Aire Systems, Inc. - Raleigh NC
International Classification:
G08B 21/00
US Classification:
340999, 340540, 340635, 169 56
Abstract:
A kitchen exhaust hood assembly having a fire suppression system with built-in redundancy and monitoring capabilities is presented. The fire suppression system includes one or more fire suppression devices associated with the kitchen hood for extinguishing a fire within the vicinity of the exhaust hood. The fire suppression devices can be triggered by a series of manual actuators or fire sensors. A switching circuit including a plurality of switches operatively connected to the manual actuators or fire sensors triggers the fire suppression devices by enabling either a first or second actuating circuit.