Falls Church, VA, United States
Falls Church, VA, United States

Northrop Grumman Corporation is an American global aerospace and defense technology company formed by Northrop's 1994 purchase of Grumman. The company was the fourth-largest defense contractor in the world as of 2010. Northrop Grumman employs over 68,000 people worldwide. It reported revenues of $25.218 billion in 2012. Northrop Grumman ranks No. 72 on the 2011 Fortune 500 list of America's largest corporations and ranks in the top ten military-friendly employers. It is headquartered in West Falls Church, Virginia. Wikipedia.


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Patent
Northrop Grumman | Date: 2015-09-23

A high altitude balloon including a payload, a balloon film with lifting gas disposed within the balloon film, a sealing ring operably coupled to the balloon film, a retention element configured to retain the payload in contact with the sealing ring, and a release element configured to cause the retention element to release the payload.


Patent
Northrop Grumman | Date: 2015-09-23

A high altitude balloon including a balloon film, a lifting gas disposed within the balloon film, a payload operably coupled to the balloon film, and a heat transfer element operably coupled between the payload and the balloon film configured to transfer heat from the payload to the lifting gas causing a change in buoyancy of the high altitude balloon.


Patent
Northrop Grumman | Date: 2015-08-04

A system and method for applying coatings to an object in a spray booth. The system and method include at least one robot that is operable to spray a coating on the object and at least one robot that includes a non-contact metrology sensor that is capable of measuring the object to determine the exact location of the object and the exact shape of the object. The sensor is also capable of measuring the thickness of the coating as it is sprayed on the object. The system and method further include a computing subsystem that is programmed to receive the measurements from the non-contact metrology sensor, where the measurements are used to determine spray paths and to adjust the spray paths for the at least one robot that is operable to spray the coating such that the object is sprayed with a coating that is within predetermined coating thickness tolerances.


Patent
Northrop Grumman | Date: 2015-09-02

A system is described for reinforcing a thermoplastic workpiece including a subject surface and an underlying workpiece body volume. At least one substantially linear Z-pin having proximal and distal pin ends longitudinally separated by a pin body is provided. The proximal pin end is in direct contact with the subject surface. An ultrasonic energy source applies ultrasonic energy to the Z-pin to ultrasonically heat the Z-pin and thus locally melt the workpiece material of the subject surface and/or the workpiece body to create a melted workpiece material. The proximal pin end and at least a portion of the pin body of the Z-pin are penetrated into the melted workpiece material to create an inserted Z-pin length. The inserted Z-pin length is maintained in the workpiece body volume by solidified melted workpiece material around the inserted Z-pin length to reinforce the workpiece. A method of reinforcing a workpiece is also provided.


Patent
Northrop Grumman | Date: 2015-07-27

A propeller includes a hub coaxially surrounding a longitudinal axis. A ring shroud coaxially surrounds the longitudinal axis and is spaced radially from the hub. The ring shroud includes an inner ring surface and a radially spaced, oppositely facing outer ring surface. At least one propeller blade is fixedly attached to both the hub and the inner ring surface and extends radially therebetween for mutual rotation therewith. At least one extending blade has a first extending blade end radially spaced from a second extending blade end. The first extending blade end is fixedly attached to the outer ring surface. The second extending blade end is cantilevered from the first extending blade end and is radially spaced from the ring shroud.


Patent
Northrop Grumman | Date: 2015-07-28

A device for connecting an aircraft to a tether secured to the ground includes an attachment mechanism secured to the tether. The attachment mechanism includes a projection having at least one opening. A hoop secured to the aircraft extends through each opening in the attachment mechanism. Each hoop forms a sliding connection with the associated opening such that the attachment member slides along the hoop in response to lateral movement of the aircraft relative to the ground.


Patent
Northrop Grumman | Date: 2016-01-11

A method for fabricating a carbon fiber composite part, for example, a sun shield structural assembly on a satellite. The composite part is fabricated on a carbon fiber/bismaleimide (BMI) composite tool, where a moisture barrier is positioned on the tool prior to carbon fiber part ply layers being positioned on the tool to prevent moisture from the tool from entering the part. In one embodiment, the moisture barrier includes cross-wise strips of aluminum foil. A wrinkle barrier is positioned on the moisture barrier before the carbon fiber part ply layers so that anomalies or wrinkles in the moisture barrier are not transferred to the part layers.


Patent
Northrop Grumman | Date: 2016-11-01

One embodiment of the invention includes a method for generating a Reciprocal Quantum Logic (RQL) circuit design via a synthesis tool. The method includes providing data associated with behavior and constraints of the RQL circuit design and a component library to the synthesis tool. The method also includes generating an RQL netlist circuit comprising a flip-flop device placeholder and a circuit system coupled to at least one of an input and an output of the flip-flop device placeholder via the synthesis tool based on the data and a component library. The method also includes separating the circuit system into circuit subsystems that are each associated with a separate respective phase of a clock signal via the synthesis tool based on inputs. The method further includes removing the flip-flop device placeholder from the RQL netlist circuit via the synthesis tool to generate the RQL circuit design from the RQL netlist circuit.


Patent
Northrop Grumman | Date: 2016-11-01

A system includes a detector array having a plurality of level detectors to monitor an optical input signal. Each level detector of the detector array operates in a different operating range, and each operating range for each level detector has a different saturation level and a different cutoff level based on a power level of the optical input signal. A controller monitors the plurality of level detectors of the detector array to detect a present power level for the optical input signal by selecting the operating range that is associated with the level detector operating between its saturation level and its cutoff level.


Patent
Northrop Grumman | Date: 2017-01-18

A lift fan (100) for use in short takeoff and vertical landing (STOVL) aircraft is disclosed and claimed. The lift fan (100) is driven by bleed air from a main engine of the aircraft being directed through an inlet (20) to fan tips (28) within a slot (48) in a housing (12), and may be stabilised in rotation by an electromagnet (50) or a polytetrafluoroethylene (PTFE) coating (92) within the slot (48). This eliminates the drag and torque on the main engine and reduces fuel cost and engine wear.

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