Bi-directional, dual acting, electric safety lock

Details Bi-directional, dual acting, electric safety lock Bi-directional, dual acting, electric safety lock

1997-09-08

1999-11-16

Jordan, Charles T.

Aeronautics and astronautics

Aircraft control

Pilot operated

244 75R, 244110B, 244220, 244221, B64C 1314, B64C 1304

Patent

active

059842415

ABSTRACT:
An electrical lock for a moving part prevents the part from moving unless a device controlled by the part is in a safe mode. The invention may find a use in many different environments. The specific example here described is a set of reverse thruster doors on a jet engine. The lock prevents a throttle from applying or removing power unless the reverse thruster doors are properly set for such application or removal of power. The lock is removed when the doors reach full deployment or retraction, respectively, which is appropriate for the direction in which said throttle is moved. These functions are provided under the control of a single solenoid.

REFERENCES:
patent: 3599510 (1971-08-01), Scott, Sr. et al.
patent: 4012015 (1977-03-01), Nelson et al.
patent: 4567786 (1986-02-01), Sakurai
patent: 5720449 (1998-02-01), Laboure et al.

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