Richard P Beaulieu, 8691 Leavitt Rd, Hampton Beach, NH 03842

5986597, Nov 16, 1999

Jun 22, 1998

9/102068

Francis V. Stemporzewski - Salem NH
Arthur W. Shea - W. Somerville MA
Gary R. Cadman - Norwell MA
Richard O. Beaulieu - Danville NH
Stephen F. Tougas - Framingham MA

Scully Signal Company - Wilmington MA

H03M 100

341142

A fail-safe fluid transfer control apparatus has full redundancy in the response to various inputs such as overfill probe signals, ground detection signals, and the like. Independent microprocessor controllers independently evaluate the inputs and each output control signals to close a respective relay when the inputs indicate that fluid transfer may commence. The relays are arranged in series such that both must be closed for a fluid transfer to commence. The control signals from each controller include a static signal and an alternating signal, both of which must be properly output to close its respective relay. Each controller monitors the state of each relay, and discontinues its control signals if either relay appears to be malfunctioning. Each controller runs an different, independently written firmware program to process the detected inputs to prevent a common firmware error. An optical bypass key replaces conventional mechanical keys and transmits an optically encoded signal to the controller for establishing a bypass condition.

5966311, Oct 12, 1999

Jun 22, 1998

9/102154

Francis V. Stemporzewski - Salem NH
Arthur W. Shea - W. Somerville MA
Gary R. Cadman - Norwell MA
Richard O. Beaulieu - Danville NH
Stephen F. Tougas - Framingham MA

Scully Signal Company - Wilmington MA

G06F 1116
B67D 500

36452816

A fail-safe fluid transfer control apparatus has full redundancy in the response to various inputs such as overfill probe signals, ground detection signals, and the like. Independent microprocessor controllers independently evaluate the inputs and each output control signals to close a respective relay when the inputs indicate that fluid transfer may commence. The relays are arranged in series such that both must be closed for a fluid transfer to commence. The control signals from each controller include a static signal and an alternating signal, both of which must be properly output to close its respective relay. Each controller monitors the state of each relay, and discontinues its control signals if either relay appears to be malfunctioning. Each controller runs an different, independently written firmware program to process the detected inputs to prevent a common firmware error. An optical bypass key replaces conventional mechanical keys and transmits an optically encoded signal to the controller for establishing a bypass condition.

5771178, Jun 23, 1998

Jun 12, 1995

8/489220

Francis V. Stemporzewski - Salem NH
Arthur W. Shea - W. Somerville MA
Gary R. Cadman - Norwell MA
Richard O. Beaulieu - Danville NH
Stephen F. Tougas - Framingham MA

Scully Signal Company - Wilmington MA

G06F 1116
B67D 532
H03K 1914
H04B 1000

364510

A fail-safe fluid transfer control apparatus has full redundancy in the response to various inputs such as overfill probe signals, ground detection signals, and the like. Independent microprocessor controllers independently evaluate the inputs and each output control signals to close a respective relay when the inputs indicate that fluid transfer may commence. The relays are arranged in series such that both must be closed for a fluid transfer to commence. The control signals from each controller include a static signal and an alternating signal, both of which must be properly output to close its respective relay. Each controller monitors the state of each relay, and discontinues its control signals if either relay appears to be malfunctioning. Each controller runs an different, independently written firmware program to process the detected inputs to prevent a common firmware error. An optical bypass key replaces conventional mechanical keys and transmits an optically encoded signal to the controller for establishing a bypass condition.