Obstruction Beacon Patents (Class 340/983)
  • Patent number: 9013331
    Abstract: A collision avoidance system includes a sensor adapted to detect at least one vehicle in the vicinity of a predetermined area and generate target data relating to the at least one vehicle. An awareness engine receives the target data and evaluates the target data for a threat of a collision. An alerting system is adapted to alert the at least one vehicle in the event of a threat of a collision, the alerting system being activated by the awareness engine.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: April 21, 2015
    Assignee: Hughey & Phillips, LLC
    Inventor: Eric W. Wise
  • Publication number: 20140247164
    Abstract: An obstruction light system includes a light and lens configured to output light. The system further includes a plurality of sensors associated with the light, a processor configured to receive outputs from the plurality of sensors and determine a status of the light based on the output from the plurality of sensors, and a wireless transmitter configured to transmit the status from the processor.
    Type: Application
    Filed: March 4, 2014
    Publication date: September 4, 2014
    Applicant: SPX Corporation
    Inventors: Mark Lane, Russell Bruner, Scott Fulton, David Duryea, Christopher Range
  • Patent number: 8636388
    Abstract: A pod of a wind power installation is provided having an aviation obstruction lighting arrangement. The aviation obstruction lighting arrangement includes a central light device which in the erected condition of the wind power installation is arranged on the pod on the top thereof, and two lateral light devices which in the erected condition of the wind power installation are arranged at mutually opposite sides of the pod.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: January 28, 2014
    Inventor: Jochen Röer
  • Publication number: 20130278445
    Abstract: The invention relates to a method for operating a wind turbine by switching on an aircraft warning light, the luminaries of which comprise LEDs, said LEDs radiating light with a maximum intensity in the range of visible light. At least one NIR LED is switched on when the aircraft warning light is switched on, said at least one NIR light source radiating light with a maximum intensity in the NIR range.
    Type: Application
    Filed: August 17, 2011
    Publication date: October 24, 2013
    Applicant: REPOWER SYSTEMS SE
    Inventors: Peter Quell, Detlef Bolz
  • Patent number: 8482435
    Abstract: The invention concerns a wind power installation comprising a flight warning light arrangement. In accordance with the invention it is proposed that the flight warning light arrangement is switched on only when a vehicle or craft, preferably an aircraft, approaches the wind power installation to a predetermined spacing.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: July 9, 2013
    Inventor: Aloys Wobben
  • Patent number: 8275495
    Abstract: Disclosed is a method and device, which provide an enhanced ability to monitor the navigation of an aircraft during a phase of flight in which the aircraft is close to the ground in which the aircraft uses positional information supplied by a satellite positioning system for the navigation. A display screen is used to display a first characteristic sign representing a selected setpoint value for a height parameter of the aircraft. The display screen also displays a second characteristic sign representing a current auxiliary value expressed in the form of an achievable height parameter. An alert is emitted when the second characteristic sign is determined to be within a predetermined height value of the first characteristic sign, and the alert is shown in visual format on the display screen. An alarm is also emitted following a predetermined time after the alert is emitted, if the setpoint value is not replaced by a new setpoint value.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: September 25, 2012
    Assignees: Airbus Operations SAS, Airbus
    Inventors: Fabien Joyeux, Adrien Ott, Melanie Morel, Romain Merat, Stephane Dattler, Francois Barre, Armelle Seillier
  • Patent number: 8164485
    Abstract: Embodiments of the invention permit flight paths (current and planned) to be viewed from various orientations to provide improved path and terrain awareness via graphical two-dimensional or three-dimensional perspective display formats. By coupling the flight path information with a terrain database, uncompromising terrain awareness relative to the path and ownship is provided. In addition, missed approaches, path deviations, and any navigational path can be reviewed and rehearsed before performing the actual task. By rehearsing a particular mission, check list items can be reviewed, terrain awareness can be highlighted, and missed approach procedures can be discussed by the flight crew. Further, the use of Controller Pilot Datalink Communications enables data-linked path, flight plan changes, and Air Traffic Control requests to be integrated into the flight display of the present invention.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: April 24, 2012
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Lawrence J. Prinzel, III, Alan T. Pope, Steven P. Williams, Randall E. Bailey, Jarvis J. Arthur, Lynda J. Kramer, Paul C. Schutte
  • Patent number: 8130112
    Abstract: In one aspect, an alarm mask for condition monitoring in a wind turbine is automatically generated. A reference data selecting definition is selected from a control definition repository in the wind turbine. The reference data selecting definition specifies a time interval of recorded reference data. Reference data is selected from a sensor located in the wind turbine recorded during the time interval. A reference value is calculated based on the reference data. A first and a second alarm mask factor are selected from the control definition repository. A first alarm mask is calculated based on multiplying the first alarm mask factor and the reference value. A second alarm mask is calculated based on multiplying the second alarm mask factor by the reference value.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: March 6, 2012
    Assignees: Siemens Aktiengesellschaft, Gram & Juhl A/S
    Inventors: Klaus Gram-Hansen, Axel Juhl, Troels Kildemoes Moeller
  • Patent number: 7982659
    Abstract: A system for preventing light pollution includes one or more radar units that monitor for vehicles in a volume surrounding or containing one or more obstructions having one or more obstruction lights. A master radar detection processing unit receives sensed radar detection information from the one or more radar units with associated radar signal processing units and determines whether a vehicle is present within the monitored volume. A plurality of obstruction light controller units are interconnected in a network, such as a wireless network. Each obstruction light controller unit turns on an obstruction light when a vehicle enters the monitored volume or a failure condition exists, and turns off the obstruction light when the vehicle has vacated the monitored volume and no failure condition exists. The one or more radar units can transmit sensed radar detection information to a master radar detection processing unit via the network.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: July 19, 2011
    Assignee: Laufer Wind Group LLC
    Inventor: Eric David Laufer
  • Patent number: 7932838
    Abstract: A system for monitoring a volume of space surrounding an aircraft having a plurality of extremity portions includes a plurality of sensors. Each sensor is disposed at a respective corresponding one of the aircraft extremity portions. Each sensor is configured to generate an image of a monitored area covering a predetermined distance from the extremity portion at which the sensor is disposed. A processing device is configured to determine, from an image generated by a first sensor of the plurality, a characteristic of an object within the monitored area covering the predetermined distance from the extremity portion at which the first sensor is disposed. The processing device is further configured to generate a signal in response to determining the object characteristic.
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: April 26, 2011
    Assignee: Honeywell International, Inc.
    Inventors: Rida Hamza, David Pepitone
  • Patent number: 7876260
    Abstract: A system for preventing light pollution includes one or more radar units that monitor for vehicles in a volume surrounding or containing one or more obstructions having one or more obstruction lights. A master radar detection processing unit receives sensed radar detection information from the one or more radar units with associated radar signal processing units and determines whether a vehicle is present within the monitored volume. A plurality of obstruction light controller units are interconnected in a network, such as a wireless network. Each obstruction light controller unit turns on an obstruction light when a vehicle enters the monitored volume or a failure condition exists, and turns off the obstruction light when the vehicle has vacated the monitored volume and no failure condition exists. The one or more radar units can transmit sensed radar detection information to a master radar detection processing unit via the network.
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: January 25, 2011
    Inventor: Eric David Laufer
  • Publication number: 20100194603
    Abstract: The invention concerns a wind power installation comprising a flight warning light arrangement. In accordance with the invention it is proposed that the flight warning light arrangement is switched on only when a vehicle or craft, preferably an aircraft, approaches the wind power installation to a predetermined spacing.
    Type: Application
    Filed: February 12, 2007
    Publication date: August 5, 2010
    Inventor: Aloys Wobben
  • Patent number: 7497593
    Abstract: A rotational obstruction and beacon signaling apparatus, in which chip-on-board (COB) packaged light emitting diodes (LEDs) are employed to provide a flashed emission pattern with high luminous intensity. The flash sequence of individual LEDs is controlled by an electronic timing circuit to simulate a rotational or other motional signaling effect.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: March 3, 2009
    Assignee: BWT Property, Inc.
    Inventor: Sean Xiaolu Wang
  • Patent number: 7466243
    Abstract: A hardware system for passively detecting wires from a mobile transportation system is provided. The hardware system includes a main processor in the hardware system that uses plural commands to manage a preprocessor module and a linker module, wherein the pre-processing module pre-processes a digital image taken from a digital camera of the transport system and reduces non-wire like clutter from the digital image and identifies pixels that can be classified as wire like; and the linker module links the identified pixels to determine if a wire like structure is present and a binary output from the linker module is sent to an output select module that allows a user to select a video output.
    Type: Grant
    Filed: October 13, 2005
    Date of Patent: December 16, 2008
    Assignee: The Boeing Company
    Inventors: Christian C. Witt, Dennis J. Yelton, James C. Hansen, Christopher J. Musial
  • Publication number: 20080231474
    Abstract: A airport runway warning system disposes a number of warning lanterns parallel to the runway by the two sides of the runway. Also, every warning lantern is at least connected to one empty sensor, to sense the nearby runway zone. All the warning lanterns and sensors are connected to a central controlling unit, disposed on the airport control tower. The central controlling unit, furthermore, connects to the main displaying light in the entrance of every communication path. By the operation in coordination via every warning lantern, sensor, central controlling unit and main displaying light, additional runway real-time information can be provided to the pilot and the people in the control tower. Particularly, the obstacles appearing on the runway abruptly can also be warned immediately.
    Type: Application
    Filed: July 6, 2007
    Publication date: September 25, 2008
    Inventors: Kun-Yuan Chang, Shing-Wei Yang
  • Patent number: 7355522
    Abstract: A warning system for a wind power installation of a wind farm. In one embodiment, the warning system comprises a visibility measuring device. In one embodiment, the warning system comprises a controller configured to synchronize flashing lights on the wind power installation with flashing lights on another wind power installation of the wind farm.
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: April 8, 2008
    Inventor: Aloys Wobben
  • Patent number: 7315037
    Abstract: An infrared identification device includes a light emitting panel member that receives light from an infrared light source for conduction within the panel member and emission from a light emitting surface area on one side of the panel member, which is relatively easy to detect at night when viewed through night vision equipment. The device may be capable of functioning in an interrogation mode, allowing the device to be activated remotely by a predetermined signal frequency, code signal or pulse signal and send out a signal response.
    Type: Grant
    Filed: January 4, 2006
    Date of Patent: January 1, 2008
    Assignee: Lumitex, Inc.
    Inventors: David J. Page, Brian M. Spahnie
  • Patent number: 7196633
    Abstract: An integrated radio tower light controller and alarm reporting device is described that is made up of solid-state current sensing modules that monitor the AC current distributed to the various lights/beacons and report various alarm modes. In addition, a solid-state flasher module is used to flash the radio tower beacons at the FAA/FCC specified rate along with reporting various alarm modes. Two mechanical relays are also included for reporting failures with the flasher module and AC power failure. Connecting terminals and testing switches are included to connect to various power leads, alarm leads, and to test the various functions of the device.
    Type: Grant
    Filed: December 31, 2001
    Date of Patent: March 27, 2007
    Assignee: AT&T Knowledge Ventures, LP
    Inventors: John Patrick Ardelan, Jr., Darrell Gene Dearing, George Lester Phelps
  • Patent number: 7136011
    Abstract: A field unit for warning of a danger of collision between an aircraft and an obstacle, in particular a topographical ground obstacle or an obstacle formed by a mast, building or aerial cable structure, comprises a multi-part tubular mast having devices for fixing a solar panel and a radar antenna; an elongate radar antenna in an environment-protective casing, which, with an electronics unit, forms a radar system for synthesized radar detection of an aircraft in a radar coverage area; a central processing unit for identifying on the basis of information from the radar system an aircraft which is in a zone of the radar coverage area and which on the basis of radar information such as direction, distance and/or speed computes a collision danger area; and a high-intensity light system and radio transmitter system that can be activated by the central processing unit upon detection of an aircraft in a collision danger area.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: November 14, 2006
    Assignee: OCAS AS
    Inventors: Morten Mørk, Rolf Bakken
  • Patent number: 7079041
    Abstract: An exemplary aircraft anticollision beacon is constructed around a faceted aluminum support cylinder and base. The support cylinder has an outside surface with ten vertically oriented substantially planar faces. An array of LEDs is mounted in thermally conductive relationship on each face of the support cylinder. Each LED is partially surrounded by a trough-shaped reflecting surface that re-directs off axis light into a horizontal plane. Axially aligned, radially adjacent reflecting troughs combine to form the circumferential reflecting troughs. The support cylinder and base are connected in thermally conductive relationship to define a thermal pathway from the LEDs to a heat radiation surface on the base. The base is also configured to act as a heat sink for heat generating components of the LED driver circuits. The exemplary beacon employs a distributed energizing circuit in which each driver is configured to energize two of the ten arrays of LEDs.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: July 18, 2006
    Assignee: Whelen Engineering Company, Inc.
    Inventors: Thomas M. Fredericks, Todd J. Smith
  • Patent number: 7019619
    Abstract: A power line warning light apparatus is installed on power lines (electric power transmission lines), and uses the electro-magnetic coupled power from the power line to generate a periodical flashing light as a warning signal to the nearby flying vehicles to prevent collisions.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: March 28, 2006
    Inventor: Yu-Tuan Lee
  • Patent number: 6992597
    Abstract: A symbology system uses programmable software in a computerized system interacting with the altitude, attitude, air speed, and other flight indicators of an aircraft to create symbology in the pilot's display seen in the field of view of the pilot. The symbology represents a virtual geometric solid form, such as a vertical cylinder, always appearing perpendicular to the horizon and moving across the terrain with the aircraft in the center of the form. The pilot sees a front portion of a virtual series of horizontal circles or other shapes, spaced by a programmable distance, symbolizing the geometric solid form appearing to surround the aircraft. The geometric form references the world as-ground for use in recognizing the attitude of the aircraft-as-figure. On landing, the form appears to stop at the ground and the aircraft appears to descend within it. A virtual bank indicator line changes orientation to the geometric solid corresponding to the attitude change of the aircraft relative to the horizon.
    Type: Grant
    Filed: March 22, 2003
    Date of Patent: January 31, 2006
    Inventors: Steven P. Rogers, Charles N. Asbury
  • Patent number: 6900742
    Abstract: The present invention involves a lighting control module for at least one aviation obstruction light including a microcontroller, and switching means for selectively coupling the aviation obstruction light to a power source, the microcontroller coupled to the switching means and selectively activating the aviation obstruction light. The microcontroller has programming for sensing a master light controller such that if a master light controller is sensed, then the microcontroller coordinates activation of the aviation obstruction light with the master light controller, and if a master light controller is not sensed, then the microcontroller sends activation signals as a master light controller.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: May 31, 2005
    Assignee: Little Circuits, Inc.
    Inventor: Charles B. Chesney, II
  • Patent number: 6867710
    Abstract: The object of the invention is to improve a flight warning light arrangement of wind power installations and in particular to make the operation thereof as effect as possible. Disclosed is a flight warning light arrangement for a wind power installation, comprising at least one light means which is mounted on the wind power installation, wherein there is provided a device for detecting the brightness value, for example a twilight switch which detects the level of daytime brightness in the area around the wind power installation, and the device for detecting the brightness value is connected to a switching device which evaluates the measured data and switches on the flight warning light arrangement when the brightness value falls below a given value.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: March 15, 2005
    Inventor: Aloys Wobben
  • Patent number: 6762695
    Abstract: A radio tower light system utilizes a ground-level semiconductor optical light source and includes fiber optic cabling that is strung along the tower to the various desired locations for the beacon light. A lens system, at each beacon site, is coupled to the termination of a fiber optic cable and used to magnify and radiate the optical signal in the desired direction. The use of a ground-based light source eliminates the need for a technician to climb the tower (or lower the beacon) upon failure of the light source.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: July 13, 2004
    Assignee: AT&T Corp.
    Inventors: Hossein Eslambolchi, John Sinclair Huffman, Bradley Tihinen
  • Publication number: 20040113817
    Abstract: An infrared beacon includes a plurality of infrared emitters disposed on a support and a power supply providing power to the infrared emitters. The infrared beacon emits a flashing infrared signature to allow identification or classification of a target in low light conditions. The beacon may be viewed with a thermal infrared viewing device.
    Type: Application
    Filed: August 2, 2002
    Publication date: June 17, 2004
    Inventors: Harvey M. Novak, Chad Sample, Paul R. Baity
  • Publication number: 20040085226
    Abstract: A power line warning light apparatus is installed on power lines (electric power transmission lines), and uses the electromagnetic coupled power from the power line to generate a periodical flashing light as a warning signal to the nearby flying vehicles to prevent collisions.
    Type: Application
    Filed: August 18, 2003
    Publication date: May 6, 2004
    Inventor: Yu-Tuan Lee
  • Publication number: 20040075575
    Abstract: A recognition light includes a reflector having an axis and first and second annular semi-parabolic reflective surfaces which have respective focal points axially spaced apart from one another, and first and second annular lamps respectively disposed at the focal points. A cover surrounds the reflector and lamps and includes a lens for focusing the light along a plane perpendicular to the axis of the reflector, the lens including first and second Fresnel lens portions each including a convex lens and a prism lens, the convex lenses being disposed adjacent one another and transaxially aligned with the first and second lamps, respectively. A light detector detects light emitted from at least one of the lamps, a monitor circuit provides a fail signal when a characteristic of the light output of at least one of the lamps does not satisfy a specified criteria, and a control circuit first activates the first lamp and then the second lamp in response to receipt of the fail signal of the monitor circuit.
    Type: Application
    Filed: September 2, 2003
    Publication date: April 22, 2004
    Inventors: Ralph Anthony DeMarco, Raymond Henry Draves, Timothy Scott Kielbon, Todd Christopher Knight, Anish Vikram Patel, Merle Keith Stephens
  • Patent number: 6708091
    Abstract: An automated terrain awareness and avoidance system includes a transmitter located in a region to be protected from controlled flight into terrain accidents. The transmitter transmits an identification value to an aircraft. In response, a safety checking routine on the aircraft identifies a danger zone around the transmitter, and determines whether the aircraft has (or will) enter the danger zone. If the safety checking routine determines that the aircraft has (or will) enter the danger zone, the safety checking routine determines a safe route and engages the autopilot, which steers the aircraft along the safe route. The safety checking routine also causes a password to be transmitted to an air route traffic control center (ARTCC). The autopilot is disengaged if the safety checking routine determines the aircraft is no longer on course to enter the danger zone, or when the password, which must be received from the ARTCC, is entered.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: March 16, 2004
    Inventor: Steven Tsao
  • Publication number: 20040046678
    Abstract: A warning beacon includes a transparent housing, having a triangular shape suggestive of a warning sign, the housing having a front face, a back face, and side edges. A mounting plate is disposed within the housing between the front and back faces, and a plurality of LEDs are supported by the mounting plate, and oriented to provide light in at least a forward direction through the front face.
    Type: Application
    Filed: August 22, 2003
    Publication date: March 11, 2004
    Inventor: James A. Grady
  • Publication number: 20030156048
    Abstract: The present invention involves a lighting control module for at least one aviation obstruction light including a microcontroller, and switching means for selectively coupling the aviation obstruction light to a power source, the microcontroller coupled to the switching means and selectively activating the aviation obstruction light. The microcontroller has programming for sensing a master light controller such that if a master light controller is sensed, then the microcontroller coordinates activation of the aviation obstruction light with the master light controller, and if a master light controller is not sensed, then the microcontroller sends activation signals as a master light controller.
    Type: Application
    Filed: January 24, 2003
    Publication date: August 21, 2003
    Inventor: Charles B. Chesney
  • Publication number: 20030156047
    Abstract: The present invention concerns a flight warning light arrangement on a building of great height, preferably a pylon of a wind power installation, comprising at least one light means and at least one switching device which switches the light means.
    Type: Application
    Filed: February 27, 2003
    Publication date: August 21, 2003
    Inventor: Aloys Wobben
  • Patent number: 6606035
    Abstract: A system and method are configured to provide a cost-effective runway monitoring tool that may be used by airports to aid in accident avoidance and investigation by generating and analyzing image data corresponding to runway areas and surfaces.
    Type: Grant
    Filed: November 19, 2001
    Date of Patent: August 12, 2003
    Assignee: Safe Landing Systems Inc.
    Inventors: Viraf Kapadia, Hilary Vieira
  • Publication number: 20030132852
    Abstract: A battery-powered emergency signaling device including a housing which encloses a battery pack disposed for providing power to the device. The housing can take on a variety of shapes. At least one light emitting diode (“LED”) pulsed by an electronic circuit, which LED is powered by a battery within the battery pack. A race is disposed about the housing for reflecting light received from the LED. The cover includes support members disposed between the base plate and the cover for providing strength to the device. An anchoring member is attached to the housing, thereby allowing the device to be mounted on a traffic cone. Also, the device includes a switch that turns the device on or off, thereby prolonging the useful life of the device.
    Type: Application
    Filed: December 19, 2002
    Publication date: July 17, 2003
    Inventors: Philip Francis Povey, Christopher Allen Westlake
  • Publication number: 20030122680
    Abstract: An integrated radio tower light controller and alarm reporting device is described that is made up of solid-state current sensing modules that monitor the AC current distributed to the various lights/beacons and report various alarm modes. In addition, a solid-state flasher module is used to flash the radio tower beacons at the FAA/FCC specified rate along with reporting various alarm modes. Two mechanical relays are also included for reporting failures with the flasher module and AC power failure. Connecting terminals and testing switches are included to connect to various power leads, alarm leads, and to test the various functions of the device.
    Type: Application
    Filed: December 31, 2001
    Publication date: July 3, 2003
    Inventors: John Patrick Ardelan, Darrell Gene Dearing, George Lester Phelps
  • Publication number: 20030020636
    Abstract: A warning light (10) for external use on an aircraft comprises a high-intensity light output light source (14,20). The light source comprises a plurality of light emitting diodes (40) which are arranged to be pulsed with an overdriving signal (32) to produce a higher than normal intensity flashing light output. The overdriving signal (32) is generated by a pulsed drive circuit (30) in response to timing signals received from a flash pattern box at a rate of between 0.67 Hz to 1.67 Hz.
    Type: Application
    Filed: September 24, 2002
    Publication date: January 30, 2003
    Applicant: Thales Optronics, Ltd.
    Inventors: Sean Russell, Adrian Saunders, Larry Adrian Laforest
  • Patent number: 6353776
    Abstract: A control system for controlling an object function includes a base station and a portable code transmitter. The base station is at the object and has a transceiver unit for transmitting an interrogation signal. The code transmitter emits a response signal with a code information item in response thereto. The base station checks an authorization of the code information item contained in the response signal. The base station and/or the code transmitter determines a time period between a transmission of a part of the interrogation signal and a reception of a part thereof obtained in reaction thereto, and compares the time period with a predefined reference time period. The base station enables the object-specific function only if the measured time period is shorter than the reference time period even if the code information item of the response signal is correct.
    Type: Grant
    Filed: July 3, 2000
    Date of Patent: March 5, 2002
    Assignee: Siemens Aktiengesellschaft
    Inventors: Thomas Röhrl, Peter Gold
  • Patent number: 5808424
    Abstract: A line marker including hollow shell halves assembled about an elevated line and luminous tubes mounted on the shell halves illuminated by the electric field extending about the power line and without electrical connection with the power line itself.
    Type: Grant
    Filed: December 7, 1995
    Date of Patent: September 15, 1998
    Inventor: George M. Osgood
  • Patent number: 5654825
    Abstract: An enhanced daytime and nighttime visibility marker for electrical lines is disclosed in two embodiments. Both embodiments are shaped to give visibility from all angles and to allow smooth covering with retroreflective tape. One embodiment includes a continuous burning interior light for maximum nighttime visibility.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: August 5, 1997
    Inventor: Richard M. Milton
  • Patent number: 5537111
    Abstract: A solar-powered, illuminated aircraft warning marker for connection to suspended cables and overhead transmission lines includes a polygonal housing having a plurality of light elements attached to different sides of the housing. The warning marker includes solar cells, storage batteries and electrical circuit apparatus for selectively illuminating the light elements during low ambient light and nighttime conditions.
    Type: Grant
    Filed: October 25, 1993
    Date of Patent: July 16, 1996
    Inventors: John S. Martin, John H. Hapgood, Clarence Rash, Parley P. Johnson
  • Patent number: 5412381
    Abstract: The invention relates to signalling, particularly road signalling, means. A considerable variety of illuminated and reflective signalling means are known to give advice to the driver of a particular vehicle and of great value to the driver of a vehicle during the hours of darkness on unlit roads or in inclement weather where mist and fog shroud a road. Such known signalling means cannot satisfy the important need to give advice to a driver of a vehicle of the presence of another vehicle closely ahead, and which is of particular importance in misty or foggy conditions.
    Type: Grant
    Filed: June 18, 1993
    Date of Patent: May 2, 1995
    Assignee: Astucia-Sociedade de Desenvolvimiento de Patentes, LDA
    Inventor: Martin E. Dicks
  • Patent number: 5400008
    Abstract: A location marker includes a casing, a switch assembly and a lens enclosing a flashable strobe lamp. The location marker is powered by batteries and an electronic circuit that converts the battery voltage to a trigger voltage for illumination of the strobe lamp. The switch assembly is non-intrusive and maintains water tight integrity inside the casing. The switch assembly futher includes a magnetically operable switch for selectively connecting and disconnecting two pairs of terminals. An R.F. transmitting location marker is also employed using a transmitter circuit and an antenna.
    Type: Grant
    Filed: January 3, 1992
    Date of Patent: March 21, 1995
    Inventor: James T. Toohey
  • Patent number: 5372335
    Abstract: An aerial marker device includes a bracket to attach the device to an elevated structure such as a power line. A body is attached to the bracket and includes an outer envelope which is inflatable to provide the desired shape of the aerial marker device.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: December 13, 1994
    Assignee: Scott H. Yenzer
    Inventors: Scott H. Yenzer, Pasquale Patullo
  • Patent number: RE41153
    Abstract: A field unit for warning of a danger of collision between an aircraft and an obstacle, in particular a topographical ground obstacle or an obstacle formed by a mast, building or aerial cable structure, comprises a multi-part tubular mast having devices for fixing a solar panel and a radar antenna; an elongate radar antenna in an environment-protective casing, which, with an electronics unit, forms a radar system for synthesized radar detection of an aircraft in a radar coverage area; a central processing unit for identifying on the basis of information from the radar system an aircraft which is in a zone of the radar coverage area and which on the basis of radar information such as direction, distance and/or speed computes a collision danger area; and a high-intensity light system and radio transmitter system that can be activated by the central processing unit upon detection of an aircraft in a collision danger area.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: March 2, 2010
    Assignee: OCAS AS
    Inventors: Morten Mork, Rolf Bakken
  • Patent number: RE42708
    Abstract: A field unit for warning of a danger of collision between an aircraft and an obstacle, in particular a topographical ground obstacle or an obstacle formed by a mast, building or aerial cable structure, comprises a multi-part tubular mast having devices for fixing a solar panel and a radar antenna; an elongate radar antenna in an environment-protective casing, which, with an electronics unit, forms a radar system for synthesized radar detection of an aircraft in a radar coverage area; a central processing unit for identifying on the basis of information from the radar system an aircraft which is in a zone of the radar coverage area and which on the basis of radar information such as direction, distance and/or speed computes a collision danger area; and a high-intensity light system and radio transmitter system that can be activated by the central processing unit upon detection of an aircraft in a collision danger area.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: September 20, 2011
    Assignee: OCAS AS
    Inventors: Morten Mark, Rolf Bakken