Raymond E Carroll

US Patent:

52298310, Jul 20, 1993

Filed:

Sep 20, 1991

Appl. No.:

7/763342

Inventors:

Raymond Carroll - Andover MA
Bruce Porter - Sudbury MA

Assignee:

The Charles Stark Draper Laboratory, Inc. - Cambridge MA

International Classification:

G01C 1972

US Classification:

356350

Abstract:

An axial gyroscopic pointing reference for mounting on optics within an internally cooled telescope a resonant fiber optic gyroscope, in which the elements of the fiber optic gyroscope are cryogenically cooled with the same system that cryogenically cools the telescope optical elements. In one specific configuration the pointing reference includes three orthogonally positioned resonant fiber optic gyroscopes supported in a tetrahedron configuration and cryogenically cooled by the telescope cooling system.

US Patent:

45639094, Jan 14, 1986

Filed:

Jul 2, 1982

Appl. No.:

6/394720

Inventors:

Raymond Carroll - Andover MA
Byong-Ho Ahn - Wayland MA

Assignee:

The Charles Stark Draper Laboratory, Inc. - Cambridge MA

International Classification:

G01C 1928
G01C 1930

US Classification:

74 55

Abstract:

A system for electronically tuning and suppressing 2N rectification torques in a dynamically tuned free rotor gyroscope with a universal hinge, or a plurality of universal hinges. The system includes means to adjust the frequency of the drive shaft of the gyroscope to a speed such that the rotor precession due to direct elastic restraint torques is eliminated. In addition, the system includes means for measuring the two degree of freedom angular deviations of the principal axis of the rotor with respect to the gyroscope case, as well as the angular deviations of the shaft spin axis relative to the gyroscope case. The sensed angular deviations of both the rotor and shaft drive a torque generator which produces a torque on the rotor for nulling torque due to angular vibrations of the drive shaft with respect to the rotor. The controlled phasing and gain of the nulling torque provides both average bending compliance tuning and suppression of the 2N rectification.

US Patent:

54206847, May 30, 1995

Filed:

Dec 22, 1989

Appl. No.:

7/455167

Inventors:

Raymond Carroll - Andover MA

Assignee:

The Charles Stark Draper Laboratory, Inc. - Cambridge MA

International Classification:

G01B 902
H01S 3083

US Classification:

356350

Abstract:

A passive resonator gyroscope in which a laser beam is split into two equal intensity beams in a waveguide, each of the beams being coupled to counterpropagate around a fiber optic ring. The beams, after splitting, are frequency modulated with a voltage having a serrodyne waveform, the polarity of the voltage applied to the modulator for the one beam being opposite to the polarity of the modulating voltage applied to the modulator for other beam. The laser frequency is locked to the optical cavity half wave resonant frequency and when the laser is so locked, the modulating voltage is applied for a first period with one polarity and then for a second period of the same duration with the opposite polarity. The output beams from the optical fiber ring are combined in the waveguide and a portion of the combined optical beam is provided to a photodetector. A circuit connected to the photodetector determines the difference between the light impinging upon the photodetector during the first period and during the second period, this difference providing a measure of the Sagnac shift produced by the rotation of the fiber optic ring.

US Patent:

20160152409, Jun 2, 2016

Filed:

Feb 5, 2016

Appl. No.:

15/017137

Inventors:

- Waterbury VT, US
Michael Sack - North Reading MA, US
Steven Raphaelson - Watertown MA, US
J. Corey Michal - Beverly MA, US
Kevin Sweeney - Malden MA, US
Brian B. Johnson - Newfields NH, US
James Passemato - Arlington MA, US
Peter Rae Peterson - Williston VT, US
Richard M. Estabrook - South Burlington VT, US
Thomas Fedorka - Billerica MA, US
Scott Grubb - Cambridge, GB
Wai Ting Chan - Cambridge, GB
Christopher Covey - Cambridge, GB
Gary Stacey - Cambridge, GB
Raymond Carroll - Marlton NJ, US

Assignee:

Keurig Green Mountain, Inc. - Waterbury VT

International Classification:

B65D 85/804
B65D 81/32
B01F 3/04

Abstract:

Systems, methods and cartridges for carbonating or otherwise dissolving gas in a precursor liquid, such as water, to form a beverage are disclosed. A gas source, which is used to generate gas that is dissolved into the precursor liquid, and/or a beverage medium, such as a powdered drink mix or liquid syrup, may be provided in a cartridge. The use of one or more cartridges for the gas source and/or beverage medium may make for an easy to use and mess-free system for making sparkling beverages, e.g., in the consumer's home.

US Patent:

20160068334, Mar 10, 2016

Filed:

Mar 9, 2015

Appl. No.:

14/641483

Inventors:

- Waterbury VT, US
Michael Sack - North Reading MA, US
Steven Raphaelson - Watertown MA, US
J. Corey Michal - Beverly MA, US
Kevin Sweeney - Malden MA, US
Brian B. Johnson - Newfields NH, US
James Passemato - Arlington MA, US
Peter Rae Peterson - Williston VT, US
Richard M. Estabrook - South Burlington VT, US
Thomas Fedorka - Billerica MA, US
Scott Grubb - Cambridge, GB
Wai Ting Chan - Cambridge, GB
Christopher Covey - Cambridge, GB
Gary Stacey - Cambridge, GB
Raymond Carroll - Marlton NJ, US

Assignee:

Keurig Green Mountain, Inc. - Waterbury VT

International Classification:

B65D 85/804
A23L 2/54
A23L 2/56
B65D 77/08

Abstract:

Systems, methods and cartridges for carbonating or otherwise dissolving gas in a precursor liquid, such as water, to form a beverage are disclosed. A gas source, which is used to generate gas that is dissolved into the precursor liquid, and/or a beverage medium, such as a powdered drink mix or liquid syrup, may be provided in a cartridge. The use of one or more cartridges for the gas source and/or beverage medium may make for an easy to use and mess-free system for making sparkling beverages, e.g., in the consumer's home.