Patents Assigned to Southern California Edison
-
Patent number: 4615530Abstract: A siren comprises a compressed air supply which is deflected by stationary deflectors to exit radially through stator ports. A rotor with spaced ports rotates between the stator and deflector thereby opening and closing the stator ports. Stationary vanes are disposed at circumferentially spaced locations, and constitute together with the deflector plate and stator and rotor housing, plenums. There are fewer rotor ports than stator ports, which generates an out-of-phase acoustical pattern which creates an acoustic combination from the stator ports of an acoustic output at a distance from the siren which is more uniform spatially. The thermoplastic seal between the stator and the rotor has minimal clearance under operating conditions havign been run-in and plastically deformed at a temperature higher than for normal operation.Type: GrantFiled: August 16, 1985Date of Patent: October 7, 1986Assignee: Southern California Edison Company, Inc.Inventor: John G. Powell
-
Patent number: 4607217Abstract: Subsynchronous resonance is detected in an electric a.c. power supply system by determining changes in wave parameters of substantially successive half cycles and applying said changes as a relationship of said subsynchronous resonance. The parameter change measured is the wave period, and changes in the ratio of the difference of the period of positive and period of negative half cycles over the sum of the period positive and the period of negative half cycles is related to detection of subsynchronous resonance.Type: GrantFiled: September 28, 1983Date of Patent: August 19, 1986Assignee: Southern California Edison Company, Inc.Inventor: Bharat Bhargava
-
Patent number: 4583043Abstract: An electrical energy diversion measurement device includes a first clip-on transformer for location about the power cable at high elevation in the zone of the weather guard or at underground manhole location where power supply enters the consumer's dwelling. A second clip-on transformer is simultaneously located about a cable passing through the watt power meter housing supplying power to the consumer. A digital measurement means is responsive to the current sensed by either the current transformers or simultaneously by the transformers and digitally displays the current of each or the difference between the sensed current as a representation of current difference and energy diversion.Type: GrantFiled: February 25, 1983Date of Patent: April 15, 1986Assignee: Southern California Edison Company, Inc.Inventor: Charles E. Phillips
-
Patent number: 4558656Abstract: A siren comprises a compressed air supply which is deflected by stationary deflectors to exit radially through stator ports. A rotor with spaced ports rotates between the stator and deflector thereby opening and closing the stator ports. Stationary vanes are disposed at circumferentially spaced locations, and constitute together with the deflector plate and stator and rotor housing, plenums. There are fewer rotor ports than stator ports, which generates an out-of-phase acoustical pattern which creates an acoustic combination from the stator ports of an acoustic output at a distance from the siren which is more uniform spatially. The thermoplastic seal between the stator and the rotor has minimal clearance under operating conditions having been run-in and plastically deformed at a temperature higher than for normal operation.Type: GrantFiled: March 31, 1983Date of Patent: December 17, 1985Assignee: Southern California Edison Company, Inc.Inventor: John G. Powell
-
Patent number: 4505665Abstract: A method and burner tip for suppressing the production of oxides of nitrogen when burning a fuel in a combustion chamber containing a flame zone are described. The burner tip comprises at least one port for introducing fuel into the combustion zone and at least one port for introducing a control gas into the combustion zone, where both the fuel and control gas are introduced substantially perpendicular to the direction of introduction of combustion gas into the combustion zone. The ports are laterally spaced apart from each other. The control gas is used for controlled localized quenching of the flame zone and/or for controlled atomization of the fuel in the case of a liquid fuel to reduce the emissions of nitrogen oxides (NOx). By proper selection of the size and location of the fuel and control gas ports, and the quantity and velocity of the fuel and control gas introduced into the combustion zone, a stable flame with minimal emission of oxides of nitrogen can be obtained.Type: GrantFiled: February 19, 1980Date of Patent: March 19, 1985Assignee: Southern California EdisonInventor: Mansour N. Mansour
-
Patent number: 4462788Abstract: Nitrogen oxide emissions from burning a gas containing essentially no nitrogen such as natural gas are reduced by burning the gas simultaneously with an alcohol such as methanol.Type: GrantFiled: August 1, 1983Date of Patent: July 31, 1984Assignee: Southern California EdisonInventor: Edward A. Danko
-
Patent number: 4460945Abstract: A luminaire shield, particularly for protecting street lights from breakage by vandals includes a laminate plate mounted in spaced relationship from the lens of the luminaire. Heat can thereby escape between an air gap and between the light source housing and the shield, and the shield extends beyond the lens with a tail portion covering the electrical converter (ballast) mounted within the luminaire housing, such that this is also protected.Type: GrantFiled: September 30, 1982Date of Patent: July 17, 1984Assignee: Southern California Edison Company, Inc.Inventors: Alexius C. Chan, Phillip L. Wheeler, Lloyd H. Chandler
-
Patent number: 4456832Abstract: An energy-efficient device for managing residential loads on electrical generating systems is disclosed. The device is suitable for installation in existing circuit breaker load center panels at low labor costs, to be signalled from Load Management System(s), of various types. The device of the present invention causes the circuit breaker to disconnect and reconnect thereby controlling power consumption during peak periods of energy use. Various alternative embodiments are also disclosed.Type: GrantFiled: August 14, 1980Date of Patent: June 26, 1984Assignee: Southern California Edison CompanyInventors: Richard H. Greer, James B. Newport
-
Patent number: 4406984Abstract: A device for detecting current imbalance between phases of a polyphase alternating current generator. A detector responds to the maximum peak current in the generator, and detecting means generates an output for each phase proportional to the peak current of each phase. Comparing means generates an output when the maximum peak current exceeds the phase peak current.Type: GrantFiled: April 9, 1982Date of Patent: September 27, 1983Assignee: Southern California Edison CompanyInventor: Robert F. Karlicek
-
Patent number: 4390876Abstract: An electric utility demand limiting device and method for disconnecting and reconnecting a load, such as a residential customer load, from a utility company power system. The device may include a preset demand limit against which power consumption is compared when the device is remotely enabled in response to a remote control signal from the utility company. The demand limit may be variable.Type: GrantFiled: July 25, 1980Date of Patent: June 28, 1983Assignee: Southern California Edison Co., Inc.Inventors: Glenn J. Bjorklund, Charles E. Phillips
-
Patent number: 4386887Abstract: An improved blade rotor structure for an axial flow turbine substantially reduces vibratory stress at resonant frequencies by rigidly connecting the blades to each other in groups equal in number to an integer multiple of the resonant frequency of the blades (i.e. a harmonic frequency) divided by the rotor running speed. Flexible tie means are used for connecting adjacent groups of blades together for substantially reducing axial-torsional vibration of the blades.Type: GrantFiled: June 30, 1980Date of Patent: June 7, 1983Assignee: Southern California Edison CompanyInventor: Ralph J. Ortolano
-
Patent number: 4346345Abstract: A theft resisting device for use as part of an electric watthour meter includes a moveable slide bar positioned in a housing within the base plate of the meter. The slide bar is normally retracted, but when unauthorized removal of the meter from its socket occurs, the bar extends thereby preventing reinstallation of the meter in the socket in any position. Locking means engages the slide bar to prevent retraction of the bar. An access aperture to the housing permits a tool to be inserted to reset the locking means and permit slide bar retraction.Type: GrantFiled: April 25, 1980Date of Patent: August 24, 1982Assignee: Southern California Edison CompanyInventor: Ronald C. Welz
-
Patent number: 4327324Abstract: A watthour meter with a rotatable metering movement responsive to the flow of energy through the meter includes a gravity activatable contact or stop element to engage the metering movement when the meter is inverted for preventing deregistration of consumed energy. Latching means can lock the element in a position showing that the meter had been inverted.Type: GrantFiled: May 6, 1980Date of Patent: April 27, 1982Assignee: Southern California Edison CompanyInventor: Ronald C. Welz
-
Patent number: 4183908Abstract: By the process of the invention a unique crystalline calcium sulfate dihydrate product is precipitated from an aqueous solution of calcium sulfate and a combination of molecularly dehydrated inorganic phosphates. Also within the scope of the invention is a wallboard manufacturing process and a gypsum wallboard which comprises the gypsum of the invention.Type: GrantFiled: June 24, 1977Date of Patent: January 15, 1980Assignee: Southern California Edison CompanyInventor: Richard B. Rolfe
-
Patent number: 4135385Abstract: A method for determining the location of underwater pipeline leaks comprising first measuring the resulting pressure within the pipeline, calculating depth of pipeline at the site of the leak and then determining the location of the leak by reference to a graph of the profile of the pipeline which plots the depth of the pipeline against the distance of the pipeline from shore.Type: GrantFiled: August 26, 1976Date of Patent: January 23, 1979Assignee: Southern California Edison CompanyInventor: John H. Watkins
-
Patent number: 4126529Abstract: An apparatus and method for removing oxides of nitrogen and sulfur from flue gases. The apparatus comprises an enclosure wherein the flue gases are washed with a scrubbing solution, preferably containing ferrous chelates and sulfite ions, and an electrochemical cell for regenerating the spent scrubbing solution. The electrochemical cell preferably comprises a plurality of cathode and anode compartments separated by ion transfer membranes. The spent scrubbing solution is regenerated by passing the solution through the cathode compartments of the electrochemical cell. The regeneration process involves the removal of the sulfate ions from the scrubbing solutions through the ion transfer membranes and the reduction of the nonreactive ferric chelate to the reactive ferrous chelate.Type: GrantFiled: August 5, 1977Date of Patent: November 21, 1978Assignee: Southern California Edison CompanyInventor: David W. DeBerry
-
Patent number: 4095928Abstract: A process for the simultaneous combustion of nitrogen-rich fuels and nitrogen-poor fuels which results in the production of less nitrogen oxide emissions.Type: GrantFiled: February 14, 1977Date of Patent: June 20, 1978Assignee: Southern California Edison CompanyInventors: Dale A. Jones, Mansour N. Mansour
-
Patent number: 4064048Abstract: An improved water intake system with fish control means includes a watercourse through which water is drawn from a body of water containing fish and debris, a fish diversion structure mounted across the watercourse for diverting fish unavoidably sucked therein and fish removal means located at one end of the fish diversion structure for removing the diverted fish from the water in the watercourse for return to the body of water.Type: GrantFiled: January 23, 1974Date of Patent: December 20, 1977Assignee: Southern California Edison CompanyInventors: Dallas I. Downs, Lory E. Larson, Victor J. Schuler
-
Patent number: 3944846Abstract: A relay for detecting sustained subsynchronous current on a power system. The relay includes a filter network for separating subsynchronous current from synchronous current and a detector network for measuring the detected subsynchronous current.Type: GrantFiled: March 19, 1974Date of Patent: March 16, 1976Assignee: Southern California Edison CompanyInventors: Maxwell A. Thompson, Tak S. Ning
-
Patent number: 3938340Abstract: A fish holding chamber for use with a water intake system which includes a watercourse through which water is drawn from a body of water containing fish and debris and a fish diversion or debris removal structure mounted across the watercourse, the fish holding chamber being located at one end of the diversion or removal structure for receiving and maintaining fish diverted from the water in the watercourse for return to the body of water.Type: GrantFiled: January 23, 1974Date of Patent: February 17, 1976Assignee: Southern California Edison CompanyInventor: Dallas I. Downs