Boots – shoes – and leggings
Patent
1977-05-05
1978-04-18
Gruber, Felix D.
Boots, shoes, and leggings
73178R, 364434, 364571, G06G 778, B64G 120
Patent
active
040854400
ABSTRACT:
A navigational system for automatically positioning a platform relative to the earth's geopotential surface. A system is provided which includes an accurate self-contained attitude reference to the true vertical. The system includes an inertial platform which is rotatable relative to a level platform, each of the platforms being connected to a two axis gimbal. One of the platforms is also connected to a three axis gimbal which may be connected to the vehicle which it is desired to stabilize. Means are provided for sensing rotation of one platform relative to the other. An inertial platform position control computer is provided for generating first corrected signals to the three axis gimbal for automatically referencing the inertial platform to a datum reference spheroid. Additional computer means are provided for generating second corrected signals to the two axis gimbal to align the level platform with the true vertical to the geopotential surface of the earth.
REFERENCES:
patent: 2634610 (1949-12-01), Silverman
patent: 3545266 (1970-12-01), Wilson
patent: 3633003 (1972-01-01), Talwani
patent: 3699316 (1972-10-01), Lopes, Jr.
patent: 3790766 (1974-02-01), Brown
patent: 3829659 (1974-08-01), Margolis
patent: 3984072 (1976-10-01), Von Pragenau et al.
Kreitzburg, Jr.; Compensating Gyro Drifts Control Engineering, Nov. 1963, . 113-116.
Fernandez, et al., Inertial Guidance Engineering Textbook, Prentice Hall, 1962, pp. 90-97.
Gruber Felix D.
Maser Thomas O.
The United States of America as represented by the Secretary of
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