Patents by Inventor Peter David Stokes
Peter David Stokes has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8475024Abstract: A photoluminescent track for an emergency lighting system comprises an elongate holder and an elongate photoluminescent insert received in a channel extending lengthwise of the holder. The insert is a push-fit in the channel and is retained by engagement of opposed inwardly directed lips at the mouth of the channel with the upper side edges of the insert so that the upper surface of the insert is exposed within the opening.Type: GrantFiled: April 14, 2008Date of Patent: July 2, 2013Assignee: Saf-T-glo LimitedInventor: Peter David Stokes
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Patent number: 8044825Abstract: An aircraft has a passenger cabin security alert system for alerting authorized personnel (flight crew) in the flight deck to a problem in the passenger cabin. The system employs portable wireless transmitter units suitable to be carried or worn on the person of authorized personnel (cabin crew) in the passenger cabin. Each transmitter unit is adapted to transmit a warning signal when actuated that is received by detector units that communicate with control means operable to determine the position P in the passenger cabin of the transmitter unit that has been actuated. The control means activates an alert unit in the flight deck to indicate the existence and position of the problem to authorized personnel (flight crew) in the flight deck.Type: GrantFiled: October 31, 2008Date of Patent: October 25, 2011Assignee: Saf-T-Glo LimitedInventors: Peter David Stokes, Sean Patrick O'Kell
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Publication number: 20100109912Abstract: An aircraft has a passenger cabin security alert system for alerting authorised personnel (flight crew) in the flight deck to a problem in the passenger cabin. The system employs portable wireless transmitter units suitable to be carried or worn on the person of authorised personnel (cabin crew) in the passenger cabin. Each transmitter unit is adapted to transmit a warning signal when actuated that is received by detector units that communicate with control means operable to determine the position P in the passenger cabin of the transmitter unit that has been actuated. The control means activates an alert unit in the flight deck to indicate the existence and position of the problem to authorised personnel (flight crew) in the flight deck.Type: ApplicationFiled: October 31, 2008Publication date: May 6, 2010Inventors: Peter David Stokes, Sean Patrick O'kell
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Patent number: 7573396Abstract: An aircraft emergency lighting system including: a plurality of units having communication devices arranged to communicate wirelessly with a master controller, wherein each unit is wired to a common power supply for powering the unit in a first mode of operation and has its own back-up battery power supply for powering the unit in a second mode of operation, and wherein the device is provided for off-load testing the back-up battery power supply of each unit and indicating if the unit is operational.Type: GrantFiled: September 21, 2005Date of Patent: August 11, 2009Assignee: SAF-T-GLO LimitedInventor: Peter David Stokes
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Patent number: 7473003Abstract: Emergency lighting for an aircraft employs a photoluminescent substrate that is activated by exposure to light wherein the substrate has portions with different light emitting characteristics whereby, in the absence of activating light, a first substrate portion provides a higher light output than a second substrate portion for an initial period after which the second substrate portion provides a higher light output than the first substrate portion.Type: GrantFiled: November 2, 2006Date of Patent: January 6, 2009Assignee: Saf-T-Glo LimitedInventors: Peter David Stokes, Sean Patrick O'Kell
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Publication number: 20080253139Abstract: A photoluminescent track for an emergency lighting system comprises an elongate holder and an elongate photoluminescent insert received in a channel extending lengthwise of the holder. The insert is a push-fit in the channel and is retained by engagement of opposed inwardly directed lips at the mouth of the channel with the upper side edges of the insert so that the upper surface of the insert is exposed within the opening.Type: ApplicationFiled: April 14, 2008Publication date: October 16, 2008Inventor: Peter David Stokes
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Patent number: 7369062Abstract: An aircraft emergency lighting system includes a plurality of light units arranged to guide passengers to and to identify exits in an emergency. The light units communicate wirelessly with a remote master control unit operable from the cockpit using a low power spread spectrum signal centered on a single frequency to avoid interference with onboard aircraft control and communication systems. The light units are arranged to receive and transmit any signal to and from the master controller whereby only some of the light units need be within range of the master controller. The light units include battery operated LEDs and cycle between an inoperable (sleep) condition and an operable (awake) condition to conserve power consumption and extend battery life.Type: GrantFiled: July 10, 2003Date of Patent: May 6, 2008Assignee: Saf-T-Glo LimitedInventors: Peter David Stokes, Daniel Leach, Stephen John Braithwaite
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Publication number: 20080101078Abstract: An aircraft emergency lighting system including: a plurality of units having communication devices arranged to communicate wirelessly with a master controller, wherein each unit is wired to a common power supply for powering the unit in a first mode of operation and has its own back-up battery power supply for powering the unit in a second mode of operation, and wherein the device is provided for off-load testing the back-up battery power supply of each unit and indicating if the unit is operational.Type: ApplicationFiled: September 21, 2005Publication date: May 1, 2008Inventor: Peter David Stokes
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Patent number: 7265684Abstract: An emergency lighting system for an aircraft comprises networked light units that communicate wirelessly with a master controller to switch the light units on in an emergency. Each unit has its own battery power source and is arranged conserve power consumption by cycling between an operable (awake) condition in which it can communicate with the master controller and an inoperable (sleep) condition wherein the wake-up time is approximately 1 millisecond or less. Power consumption is also reduced by employing LEDs as the light source and pulsing the LEDs with a variable load factor to adjust the illumination level.Type: GrantFiled: September 20, 2004Date of Patent: September 4, 2007Assignee: Saf-T-Glo LimitedInventors: Peter David Stokes, Dan Leach
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Patent number: 6874919Abstract: An emergency lighting system for an aircraft has photoluminescent material arranged to define an escape path to the exits. The photoluminescent material is encapsulated within a track of predetermined length for securing to the floor of the aircraft. The track comprises a one piece housing formed with a longitudinally extending slot and the photoluminescent material is provided by an insert that is a push-fit in the slot from one end of the housing. The housing is closed at both ends to seal the slot and prevent ingress of dirt or fluid. In a modification the housing is compressed with the insert in place to reduce the height of the track and optionally to provide the track with anti-slip characteristics.Type: GrantFiled: July 23, 2001Date of Patent: April 5, 2005Assignee: SAF-T-Glo LimitedInventors: Peter David Stokes, Peter Winstanley Bodle
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Publication number: 20040104307Abstract: An escape chute (11) for an aircraft, the chute (11) having a collapsed condition for storage of the chute in an confined or reduced space and an extended condition providing a ramp down which people can slide, and means (15,16) for illuminating the chute in the extended condition, characterised in that the illumination means (15,16) is activated when the chute (11) is deployed to provide illumination identifying the position of the chute without relying on an electrical power source.Type: ApplicationFiled: September 17, 2003Publication date: June 3, 2004Inventor: Peter David Stokes
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Publication number: 20020015309Abstract: An emergency lighting system for an aircraft has photoluminescent material arranged to define an escape path to the exits. The photoluminescent material is encapsulated within a track of predetermined length for securing to the floor of the aircraft. The track comprises a one piece housing formed with a longitudinally extending slot and the photoluminescent material is provided by an insert that is a push-fit in the slot from one end of the housing. The housing is closed at both ends to seal the slot and prevent ingress of dirt or fluid. In a modification the housing is compressed with the insert in place to reduce the height of the track and optionally to provide the track with anti-slip characteristics.Type: ApplicationFiled: July 23, 2001Publication date: February 7, 2002Inventors: Peter David Stokes, Peter Winstanley Bodle