US4094200A — Method and equipment for making roll and pitch da…

Claim 1

Independent Claim 184 words

Apparatus for facilitating the piloting of aircraft comprising a gyroscopic horizon including a vertical instrument gyroscope with a built-in erector means, and pitch and roll indicator means, transducer means to transmit electrical signals proportional to pitch and roll changes attached on the pitch and roll suspension axes of said vertical instrument gyroscope, gyroscopic reference means having stable gyroscopic means and pitch and roll electrical transducer means attached to said gyroscopic means, first comparator means connected to receive and compare the signals and produce a signal output proportional to the difference in signals from said pitch electrical transducer means of said gyroscopic reference means and said pitch transducer means of said vertical instrument gyroscope, second comparator means connected to receive and compare the signals and produce a signal output proportional to the difference in signals from said roll electrical transducer means of said gyroscopic reference means and said roll transducer means of said vertical instrument gyroscope, pitch and roll operating means to cause the movement of said pitch and roll indicator means in accordance with said signal outputs from said first and second comparator means.

Claim 2

Dependent Claim 184 words

Apparatus for facilitating the piloting of aircraft comprising a gyroscopic horizon including a vertical instrument gyroscope with a built-in erector means, and pitch and roll indicator means, transducer means to transmit electrical signals proportional to pitch and roll changes attached on the pitch and roll suspension axes of said vertical instrument gyroscope, gyroscopic reference means having stable gyroscopic means and pitch and roll electrical transducer means attached to said gyroscopic means, first comparator means connected to receive and compare the signals and produce a signal output proportional to the difference in signals from said pitch electrical transducer means of said gyroscopic reference means and said pitch transducer means of said vertical instrument gyroscope, second comparator means connected to receive and compare the signals and produce a signal output proportional to the difference in signals from said roll electrical transducer means of said gyroscopic reference means and said roll transducer means of said vertical instrument gyroscope, pitch and roll operating means to cause the movement of said pitch and roll indicator means in accordance with said signal outputs from said first and second comparator means.

Claim 3

Dependent Claim 41 words

Apparatus in accordance with claim 1, further characterized by said pitch and roll indicator means including an aircraft symbol mounted on a circular roll scale connected to said roll operating means, and an indicator drum connected to said pitch operating means.

Claim 4

Dependent Claim 22 words

Apparatus in accordance with claim 2, further characterized by said pitch operating means including a servomechanism controlling rotation of said indicator drum.

Claim 5

Dependent Claim 75 words

Apparatus in accordance with claim 3, further characterized by said servomechanism including a shaft driven by said instrument gyroscope to move with its pitch axis, a first rotor fixed to said shaft for movement therewith, a first stator fixed inside and to said drum; and an electrical pick-up means for delivering a servo feedback signal including a second stator fixed to said shaft for movement therewith, a second stator fixed inside and to said drum.

Claim 6

Dependent Claim 53 words

Apparatus in accordance with claim 4, further characterized by said pitch operating means further including an amplifier means to receive on its input said signal output from said first comparator means and the servo feedback signal from said electrical pick-up means and producing an output to energize said servomechanism first rotor and stator.

Claim 7

Dependent Claim 39 words

Apparatus in accordance with claim 5, further characterized by manually-operated knob means to cause angular motion of said drum, and a pick-up mounted to said knob means and connected to apply an additional input signal to said amplifier means.

Claim 8

Dependent Claim 37 words

Apparatus in accordance with claim 4, further characterized by a pitch servomechanism resetting means including a heart-shaped cam fixed to said shaft, and a cam follower riding on said cam and mounted in connection to said drum.

Claim 9

Dependent Claim 48 words

Apparatus in accordance with claim 1, further characterized by said roll indicator means including a roll ring gear bearing a circular roll scale; a roll servomechanism connected to receive said signal output of said second comparator means and to impart a rotational displacement to said roll ring gear.

Claim 10

Dependent Claim 36 words

Apparatus in accordance with claim 8, further characterized by said roll servomechanism including a differential, an electrical detector delivering a feedback signal, a servoing motor driving said electrical detector, said roll ring gear, and said differential.

Claim 11

Dependent Claim 38 words

Apparatus in accordance with claim 9, further characterized by said roll servomechanism including return to null positioning means to act in any case of power supply interruption, failure of gyroscopic reference, and angular deviation exceeding a preset value.

Claim 12

Independent Claim 98 words

A method of introducing and indicating pitch and roll information with an artificial horizon instrument of the type having a vertical gyroscope with a built-in erector means which comprises the steps of obtaining pitch and roll electrical signals from a reference or master gyroscope, comparing electrical signals furnished by transducers mounted on the pitch and roll suspension axes of said vertical gyroscope to said respective pitch and roll electrical signals from said reference or master gyroscope, applying pitch and roll angular deviation signals obtained from said comparing of signals to pitch and roll indications displayed by said instrument.

Claim 13

Independent Claim 98 words

A method of introducing and indicating pitch and roll information with an artificial horizon instrument of the type having a vertical gyroscope with a built-in erector means which comprises the steps of obtaining pitch and roll electrical signals from a reference or master gyroscope, comparing electrical signals furnished by transducers mounted on the pitch and roll suspension axes of said vertical gyroscope to said respective pitch and roll electrical signals from said reference or master gyroscope, applying pitch and roll angular deviation signals obtained from said comparing of signals to pitch and roll indications displayed by said instrument.

Claim 14

Dependent Claim 39 words

The method in accordance with claim 11, further characterized by said pitch angular deviation signal is applied to an indicator drum and said roll angular deviation signal is applied to an aircraft symbol mounted in front of said drum.

Claim 15

Dependent Claim 34 words

The method in accordance with claim 11, further characterized by at least said roll angular deviation signal is applied to move an aircraft symbol mounted in the front portion of said artificial horizon instrument.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1981-06-12	1981-12-12	1982-06-13	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1985-06-12	1985-12-12	1986-06-13	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1989-06-12	1989-12-12	1990-06-13	$7700.00	Window Closed / Lapsed

Method and equipment for making roll and pitch data inputs into a piloting instrument

Abstract

Inventors

Bibliographic Details

Claims Analysis

References Cited (Backward Citations)

USPTO Annuity & Maintenance Windows

Assigned Categories & Tags

Assign Category Tag