Jay Martin Hoffman

41899466, Feb 26, 1980

Nov 16, 1977

5/851942

Jay Hoffman - Livingston NJ
Lincoln S. Ferriss - Lincoln Park NJ

The Singer Company - Little Falls NJ

G01C 1928
G01C 1930

74 54

In a gyroscope including a rotor spinning about a spin axis, the rotor gimballed about two mutually perpendicular axes and including cross coupled closed loops operative on the two mutually perpendicular axes so as to be able to detect rates about said two axes, a feedback loop is provided to cause the gyroscope spin axis to nutate in a cone about its nominal, blind, spin axis at a controlled amplitude and at a frequency which is at least close to the natural nutation frequency of the gyro and the nutation detected and changes in the nutation amplitude or frequency used as a measure of the rate about the blind axis.

41555210, May 22, 1979

Dec 8, 1975

5/638465

John L. Evans - Oakland NJ
Walter J. Krupick - Succasana NJ
Jay Hoffman - Livingston NJ

The Singer Company - Littls Falls NJ

F41G 700
G01C 1928
G01C 1912
G01C 1924

244 316

A gyro seeker which is capable of use in a cannon launched missile. The gyro seeker is enclosed in a housing mounted in the nose section of the missile. The platform of the gyro seeker supports an optical assembly, a detector, a gyro assembly, and a cryostat for cooling the detector. Means are provided on the outer gimbal of the platform for withstanding the extreme acceleration induced by cannon launching. The platform is torqueable along two axes by a plurality of pole pieces located around its base. A platform caging device is provided to cage the platform during transport and serves a dual function as a means to furnish spin-up gas to the gyro element and cooling gas to the cryostat.

42133432, Jul 22, 1980

Apr 30, 1979

6/034110

Jay Hoffman - Livingston NJ

The Singer Company - Little Falls NJ

G01P 1508

73505

A kinematic inertial sensor is provided for measuring angular velocity and position relative to inertial space about one or more measurement axes. The kinematic inertial sensor includes an angular rate sensor having a ring of conducting fluid contained in a housing, a set of gimbals for supporting the angular rate sensor, signal generating means, torque applying means, angle measuring means, resolver means, component processing means, and signal applying means.

42703875, Jun 2, 1981

Apr 30, 1979

6/034109

Jay Hoffman - Livingston NJ

The Singer Company - Little Falls NJ

G01C 1914
G01C 1942

73504

A gyroscope which has a spinning fluid filled annulus as an inertial angle rate sensor is compensated for inertial drift by resolving an output signal from the sensor into acceleration proportional components related to the gimbal axes and the component related to the inner axis is applied to the outer axis, and the component related to the outer axis is applied to the inner axis to cancel out the effects of drift.

42481686, Feb 3, 1981

Mar 13, 1980

6/129937

Jay Hoffman - Livingston NJ

The Singer Company - Stamford CT

D05B 302

112158E

A sewing machine is disclosed wherein the position of the edge of a work fabric is sensed and signals are generated to control the needle jogging mechanism in order to sew a line of stitches a substantially constant predetermined distance from the edge.