US Patent No: 7,724,412

Number of patents in Portfolio can not be more than 2000

Variable aperture and actuator assemblies for an imaging system

ALSO PUBLISHED AS: 20080304126

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Importance

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Abstract

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Variable aperture and actuator assemblies are provided for a radiation detector housing in an imaging system. The variable aperture assembly includes a ring mounted over the housing's window, a plate having a first aperture disposed over the window, an aperture blade operatively coupled to the ring so the blade moves laterally relative to the first aperture, and an aperture drive mechanism having a body and an actuator coupling member extending at an angle from the body. The drive mechanism is adapted to drive the blade laterally away from the first aperture when the member is moved in a first lateral direction, and over the first aperture to define a second aperture disposed over the window when the member is moved in a second lateral direction. The actuator assembly has an actuator and an actuator arm adapted to engage the actuator coupling member to control the lateral movement of the member.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
DRS RSTA, INC.DALLAS, TX70

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Malarcher, Falvey L Plano, TX 6 9
Powell, Donald A Dallas, TX 19 44

Cited Art Landscape

Patent Info (Count) # Cites Year
 
RAYTHEON COMPANY (3)
5,737,119 Thermal imaging device 16 1995
6,174,061 Compact electro-optical sensor assembly having single aperture for multiple detectors 15 1998
6,122,919 Sensor/cooling system with cold finger having recessed end 14 1999
 
OPTO-KNOWLEDGE SYSTEMS, INC. (2)
7,157,706 Cryogenically cooled adjustable apertures for infrared cameras 11 2003
7,427,758 Cryogenically cooled adjustable apertures for infra-red cameras 8 2005
 
DENTOP SYSTEMS LTD. (1)
6,414,708 Video system for three dimensional imaging and photogrammetry 16 1998
 
FLIR SYSTEMS AB (1)
6,707,044 Infrared camera system 18 2001
 
GEC Avionics Limited (1)
4,583,814 Infra-red optical systems 13 1984
 
HOCHIKI CORPORATION (1)
6,806,471 Flame detection device 9 2002
 
KABUSHIKI KAISHA TOSHIBA (1)
7,206,158 Disk drive for quickly retracting head to retract area, and emergency head-unload control circuit for use in the disk drive 4 2005
 
MARTIN MARIETTA CORPORATION (1)
4,783,593 Optical system for wide angle IR imager 35 1985
 
NIKON CORPORATION (1)
6,133,569 Thermal infrared camera 27 1998
 
TESTAMERICA LABORATORIES, INC., A DELAWARE CORPORATION (1)
5,141,404 Pump apparatus 22 1990
 
WILSON, BRUCE (1)
4,917,362 Automatic wire puller 16 1989
 
Other [Check patent profile for assignment information] (2)
5,966,945 Universal focal plane dewar assembly 14 1998
2006/0213,950 Spring energized desktop stapler 4 2006

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
OPTO-KNOWLEDGE SYSTEMS, INC. (3)
8,071,947 Variable aperture for infra-red cameras 2 2008
8,497,479 Adjustable-aperture infrared cameras with feedback aperture control 0 2011
8,462,418 Continuous variable aperture for forward looking infrared cameras based on adjustable blades 0 2012
 
DRS RSTA, INC. (1)
8,746,570 Variable aperture and actuator assemblies for an imaging system 0 2013

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Nov 25, 2017
11.5 Year Payment $7400.00 $3700.00 $1850.00 Nov 25, 2021
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00

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