Amos R Jackson
Engineers in Salt Lake City, UT

4197435, Apr 8, 1980

Feb 24, 1978

5/880911

Amos R. Jackson - Salt Lake City UT
Thomas C. Jackson - Salt Lake City UT

H04B 346

1791753R

A novel circuit and method are described for monitoring a telephone line of a switched telephone system. The line monitoring circuit is interposed in the telephone system between the local subscriber-line from the central office and the on-premise continuation of that line at the subscriber's location. The line monitoring circuit has component circuitry for sensing both line-to-ground faults and extraneous AC voltages of a predetermined magnitude and frequency. Upon sensing a line-to-ground fault or an extraneous AC voltage of the predetermined magnitude and frequency, a control signal is transmitted to a relay control element which operates to disconnect the on-premise portion of the line from the portion of the line which extends from the subscriber's premise to the central office of the utility company. Visual indicators are also provided with the circuit. The indicators show whether a line-to-ground fault or an extraneous AC voltage fault has caused the relay to operate.

4096832, Jun 27, 1978

Aug 26, 1976

5/717970

Don C. Casull - Salt Lake City UT
James M. Dalton - Salt Lake City UT
Calvin W. Jackson - Salt Lake City UT
Amos R. Jackson - Salt Lake City UT

F02B 1910

123 32SP

An improved ignition device wherein a spark plug is provided with a torch chamber surrounding the spark gap. A first mixture of fuel-rich fuel and air is supplied to the torch chamber where it is ignited by a spark and propelled as a jet of burning fuel into the combustion zone of a cylinder of an internal combustion engine. The burning fuel from the torch chamber provides suitable ignition of a relatively lean second mixture of fuel and air in the combustion chamber which mixture is leaner than would otherwise be suitably ignited with a spark from a conventional spark plug. A porous plug in the fuel line acts as a one-way valve by allowing liquid fuel to pass by capillary and/or seepage action while resisting backflow caused by periodic high pressures within the combustion chamber. A cooling and heat-shielding system protects the fuel supply system against excessive heat absorption which would tend to prematurely vaporize the fuel and interfere with the valving apparatus.

4086439, Apr 25, 1978

Dec 17, 1976

5/751490

Sandra Rae Vowles - Denver CO
Michael Alan Jacobs - Denver CO
Amos Ray Jackson - Salt Lake City UT

H04M 518

179 27DA

An apparatus identifying a class of called telephone lines by extending an identity signal back over the called line to a calling central operator or control. The identifier apparatus includes a signal identity generator connected to the called line, a signal decoder located at a calling central control such as an operator cordboard or traffic service position (TSPS), and a time-out for deactivating the generator after a predetermined time period has elapsed. A method is also set forth where a uniquely coded signal is extended over the communication line to an operator when an "OFF HOOK" condition appears from the called line to warn the operator that the called line is not authorized to receive collect calls.