Resumes
Resumes
Coral Bernier Phones & Addresses
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Bothell, WA
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18667 55Th St, Redmond, WA 98052 (425) 522-4719
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16012 124Th Ave, Woodinville, WA 98072 (425) 482-6659
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Des Moines, WA
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Kiona, WA
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Issaquah, WA
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16012 124Th Ct NE #34, Woodinville, WA 98072 (425) 482-6659
Work
Position:
Executive, Administrative, and Managerial Occupations
Education
Degree:
Associate degree or higher
Publications
Us Patents
Ejection Seat Haulback System
View pageUS Patent:
48711314, Oct 3, 1989
Filed:
Sep 19, 1988
Appl. No.:
7/246413
Inventors:
Coral A. Bernier - Des Moines WA
Douglas E. Swanson - Bellevue WA
Douglas E. Swanson - Bellevue WA
Assignee:
The Boeing Company - Seattle WA
International Classification:
B64D 2506
US Classification:
244122AG
Abstract:
A system for retracting a pilot into an ejection seat during either normal flight or an emergency ejection procedure. A pair of haulback straps are wound on a haulback reel that is rotatably driven by a gas-powered motor. The motor receives pressurized gas from the aircraft's bleed air during normal flight and from a pyrotechnic cool gas generator during an ejection. The rate of gas flow to the motor is controlled by a servovalve. The actual rotational velocity of the haulback reel is measured by a tachometer and compared to a desired haulback velocity profile. A control signal that is proportional to the difference between the actual haulback velocity and the desired haulback velocity is applied to the servovalve so that the desired haulback velocity is achieved. The desired haulback velocity may vary as a function of time from the start of an ejection procedure. The system also includes an acceleration sensor for actuating a haulback reel locking mechanism when excessive g-loads are sensed, a reel lock actuated if the haulback straps unwind from the haulback reel at an excessive rate, and a spring-loaded winding mechanism to apply a relatively small winding torque to the haulback reel to prevent any slack from developing in the haulback straps.