Sergio J Espinoza

US Patent:

20070290067, Dec 20, 2007

Filed:

Jun 20, 2006

Appl. No.:

11/455967

Inventors:

Sergio Espinoza - Fullerton CA, US

International Classification:

A01G 27/00

US Classification:

239 69

Abstract:

An individually controlled sprinkler system includes a water source providing water at a suitable pressure for a sprinkler system. A piping system including at least two sprinkler heads is connected to the water source at locations remote from the water source. Each of the sprinkler heads has an electrically controllable valving system. A microprocessor control system is electrically connected to each of the sprinkler heads. The control system is programmable and provides controllable input signals to the sprinkler heads allowing an individually adjusted flow to be produced by each sprinkler head. The control system also provides programmed input signals to lighting fixtures. The sprinkler heads and lighting fixtures are connected to the control system with wires or using a radio frequency transmitter connected to the control system and suitable receivers connected to the sprinkler heads and lighting fixtures. The control system is accessed remotely over a network or telephone system.

US Patent:

20180183085, Jun 28, 2018

Filed:

Feb 20, 2018

Appl. No.:

15/900223

Inventors:

- Chicago IL, US
SERGIO ESPINOZA - Huntington Beach CA, US

International Classification:

H01M 8/18
H01M 8/04664
H01M 8/04828
H02J 3/38
H01M 8/04537
H01M 8/124

Abstract:

A Reversible Solid Oxide Fuel Cell (RSOFC) system includes a Reversible Solid Oxide Fuel Cell (RSOFC) unit, a bi-directional alternating current/direct current (AC/DC) converter, coupled to the RSOFC unit, a common bus, coupled to the bi-directional AC/DC converter and to a power grid, and a plurality of RSOFC subsystems, coupled to receive power only through the common bus. The RSOFC unit has a fuel cell mode, wherein the RSOFC unit produces electrical power from fuel, and an electrolysis mode, wherein the RSOFC unit consumes electrical power to produce the fuel. The bi-directional AC/DC converter is coupled to the RSOFC unit, and is configured to convert direct current (DC) electrical power produced by the RSOFC unit into outgoing alternating current (AC) power, and to convert incoming AC power into DC power for consumption by the RSOFC unit in electrolysis mode.

US Patent:

20170005357, Jan 5, 2017

Filed:

Jul 1, 2015

Appl. No.:

14/788944

Inventors:

- Chicago IL, US
SERGIO ESPINOZA - Huntington Beach CA, US

International Classification:

H01M 8/18
H01M 8/04664
H02J 3/38
H01M 8/04828

Abstract:

A Reversible Solid Oxide Fuel Cell (RSOFC) system includes a Reversible Solid Oxide Fuel Cell (RSOFC) unit, a bi-directional alternating current/direct current (AC/DC) converter, coupled to the RSOFC unit, a common bus, coupled to the bi-directional AC/DC converter and to a power grid, and a plurality of RSOFC subsystems, coupled to receive power only through the common bus. The RSOFC unit has a fuel cell mode, wherein the RSOFC unit produces electrical power from fuel, and an electrolysis mode, wherein the RSOFC unit consumes electrical power to produce the fuel. The bi-directional AC/DC converter is coupled to the RSOFC unit, and is configured to convert direct current (DC) electrical power produced by the RSOFC unit into outgoing alternating current (AC) power, and to convert incoming AC power into DC power for consumption by the RSOFC unit in electrolysis mode.

US Patent:

20160369416, Dec 22, 2016

Filed:

Jun 19, 2015

Appl. No.:

14/745250

Inventors:

- Chicago IL, US
SERGIO ESPINOZA - Huntington Beach CA, US

International Classification:

C25B 15/02
H01M 8/18
H01M 8/04

Abstract:

A method for transitioning between fuel cell and electrolysis modes in a Reversible Solid Oxide Fuel Cell (RSOFC) system includes measuring and recording sensor data indicating a status of components associated with an RSOFC system coupled to an electrical power grid, the system comprising an RSOFC unit, a hydrogen compression system, a hydrogen storage system, and a water supply, determining a state of the RSOFC system based on the sensor data through a conditional logic algorithm, and transitioning the RSOFC system between the fuel cell mode and the electrolysis mode based upon the sensor data and the system state.