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Nevil Q Maassen

from Goleta, CA
Age ~72
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Also known as:
Nevil Karen Maassen, Nevil K Maassen, Nevil Karen Maasen, Nick Maassen, Nevil Massen, Maassen Nevil, Quentin Maassen Nevil, Nebil Maassen, Massen Nevil
Phone and address:
206 Hillview Dr, Santa Barbara, CA 93117
(805) 898-0377
Related to:
Nicholas R Maassen, 77Heather M Maassen, 42Sharon K FrenchBarbara O MaassenJillian E Maassen, 35Miles R Maassen, 36Warren E French, 81Ted G LuxCarol Lux Gordon, 85Ralph MaassenCarol S Lux, 88Karen J Maassen, 65Bruce J Maassen, 75Marie L MaassenLinda Nigro, 69Barbara Maassen
Connected to:
Benjamin J Maassen, 36Brian W Maassen, 70Clemens K Maassen, 120Diane M Maassen, 79Ingrid D Maassen, 69James E Maassen, 57Lisa M Maassen, 60Matthew T Maassen, 45Paul W Maassel, 60Connie Maastricht, 43

Nevil Maassen Phones & Addresses

  • 206 Hillview Dr, Goleta, CA 93117 (805) 898-0377
  • 791 Palermo Dr, Santa Barbara, CA 93105 (805) 687-9996
  • 1826 Pampas Ave, Santa Barbara, CA 93101
  • 5 Saint Ann Dr, Santa Barbara, CA 93109 (805) 962-9813 (805) 965-8424
  • San Clemente, CA
  • 1124 Bellflower Ln, Lompoc, CA 93436
  • Kerman, CA

Resumes

Resumes

Nevil Maassen Photo 1

Engineer

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Location:
Santa Barbara, CA
Industry:
Defense & Space
Work:
Raytheon
Engineer
Education:
University of California, Santa Barbara 1976 - 1979
Nevil Maassen Photo 2

Nevil Maassen

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Nevil Maassen Photo 3

Nevil Maassen

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Location:
Santa Barbara, CA
Industry:
Defense & Space

Publications

Us Patents

Rapid Cooldown Dewar

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US Patent:
51879395, Feb 23, 1993
Filed:
Jun 3, 1991
Appl. No.:
7/709929
Inventors:
Matthew M. Skertic - Chatsworth CA
Joseph L. Hlava - Woodland Hills CA
Arthur A. Eneim - Goleta CA
Nevil Q. Maassen - Goleta CA
Assignee:
Hughes Aircraft Company - Los Angeles CA
International Classification:
F25B 1902
US Classification:
62 512
Abstract:
A dewar (20) useful in rapidly cooling a sensor (28) supported thereon includes a bore tube assembly having a cylindrical dewar bore tube (22) with an end cap (24) at one end to close the bore tube (22). The bore tube assembly is cooled by directing a stream of coolant at the interior of the end cap (24). The sensor (28) is mounted directly to the exterior surface of the end cap (24). A cold shield (34) partially encloses the sensor (28). A cold shield support bracket (38) mounts the cold shield (34) to the cylindrical side walls of the dewar bore tube (22) at a mounting location (36) axially displaced from the end cap (24) and therefore less effectively cooled than the end cap (24), so that heat is extracted from the support bracket (38) and the cold shield (34) less rapidly than from the sensor (28). From an uncooled starting condition, the sensor (28) is cooled to its operating temperature, and the cold shield (34) is cooled to its operating temperature, in about the same time.

Distortion Free Dewar/Coldfinger Assembly

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US Patent:
49528106, Aug 28, 1990
Filed:
Aug 23, 1989
Appl. No.:
7/397710
Inventors:
Kenneth L. Gustafson - Pollock Pines CA
Timothy S. Romano - Goleta CA
Nevil Q. Maassen - Goleta CA
Donald E. Salzer - Santa Barbara CA
Assignee:
Santa Barbara Research Center - Goleta CA
International Classification:
G01J 506
US Classification:
250352
Abstract:
An infrared detector assembly (10) of the type used in munitions and night vision systems having an improved coldfinger assembly (42). Such detector assemblies (10) include a tubular coldfinger (22) which is surrounded by a vacuum and an end-cap (28) mounted to the coldfinger tube (22) to define a cold end (24) which supports the infrared detector array (30) and related components. In accordance with this invention, the coldfinger tube (22) is a thin-walled titanium cylinder and the end-cap (28) is made of tungsten. The components are metallurgically bonded at the cold end (24) by an active brazing alloy deposited during vacuum furnace brazing. The titanium coldfinger (22) provides the necessary bending stiffness to support cold end components. The tungsten end-cap (28) provides a low distortion, thermally stable focal-plane. The metallurgical bond (46) provides for a hermetic seal which inhibits structural distortion during brazing, and during cyclical cooling of the detector assembly (10).

Low Distortion Focal Plane Platform

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US Patent:
49547089, Sep 4, 1990
Filed:
Aug 23, 1989
Appl. No.:
7/397808
Inventors:
Donald E. Salzer - Santa Barbara CA
Nevil Q. Maassen - Goleta CA
Assignee:
Santa Barbara Research Center - Goleta CA
International Classification:
G01J 506
US Classification:
250352
Abstract:
An infrared detector assembly (12) of the type used in munitions and night vision systems having an improved focal plane platform (10). The focal plane platform (10) includes an end-cap (32) made from tungsten. Adhesively bonded to end-cap (32) is a ceramic mounting board (34). Ceramic mounting board (34) further comprises gold trace pattern (50) for conducting electrical signals generated by hybrid detector (26) to external control electronics. The improved focal plane platform (10) provides a relatively distortion free, thermally stable mounting platform upon which detector (26) is secured. Premature thermal fatigue failure of the hybrid detector is thereby inhibited.

Quick Cooldown/Low Distortion Hybrid Focal Plane Array Platform For Use In Infrared Detector Dewar Packages

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US Patent:
51110504, May 5, 1992
Filed:
Dec 3, 1990
Appl. No.:
7/621419
Inventors:
Nevil Q. Maassen - Goleta CA
Timothy S. Romano - Goleta CA
Leonard E. Peck - Goleta CA
Assignee:
Santa Barbara Research Center - Goleta CA
International Classification:
G01J 506
US Classification:
250352
Abstract:
A radiation detector assembly (20) includes a radiation detector (2), a silicon readout device (3) coupled to the radiation detector, and a platform 13 for supporting from a first major surface (13a) the readout device and the radiation detector. A second major surface (13b) includes a boss (14) for coupling, via an active brazing operation, to a cryogenic cooler. The platform is monolithic structure comprised of aluminum nitride (AlN) and eliminates at least one adhesive joint found in the prior art. AlN is selected because of its inherent material properties including a higher thermal diffusivity, relative to typical ceramic materials, for providing a reduced cooldown time of the detector to cryogenic temperatures. AlN also has a 300K- 77K thermal contraction characteristic that closely matches that of the silicon readout device and a high modulus of elasticity, thereby reducing distortion of the readout device thus minimizing stresses on indium bump interconnects. AlN also has dielectric characteristics that permit thin film metalization of the surface (13a) for providing electrical signal distribution.
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Nevil Q Maassen from Goleta, CA, age ~72 Get Report