Thomas B Tippetts

US Patent:

39931013, Nov 23, 1976

Filed:

Aug 25, 1975

Appl. No.:

5/607529

Inventors:

Thomas B. Tippetts - Scottsdale AZ
Donald W. Chapin - Scottsdale AZ

Assignee:

The Garrett Corporation - Los Angeles CA

International Classification:

F15C 110
F15C 300

US Classification:

137831

Abstract:

An electrofluidic transducer which utilizes an electromagnetic device that is energizable by electric currents of opposite polarity to shift a fluid beam in opposite directions away from a central position. In its central position the beam deflector is between a pair of fluid nozzles, and shifts to deflect respective fluid beam from the two nozzles upon opposite energization of the electromagnet, so that three different pressure differential signals may be selectively impressed upon a pair of fluid output ports registering with the pair of fluid nozzles.

US Patent:

46488073, Mar 10, 1987

Filed:

May 14, 1987

Appl. No.:

6/734003

Inventors:

Thomas B. Tippetts - Mesa AZ
Michael F. Cycon - Tempe AZ

Assignee:

The Garrett Corporation - Los Angeles CA

International Classification:

F04B 3504
F04B 4504

US Classification:

417322

Abstract:

The piezoelectrically driven diaphragm of an air pump is extended through a chamber and commmunicating outlet passage of the pump's housing. During vibration of the diaphragm, air pulses are alternately expelled through the outlet passage portions positioned on opposite sides of the diaphragm. The air pulses are collected in a rectifying device, carried by the housing, for delivery to a fluidic device or system.

US Patent:

40196976, Apr 26, 1977

Filed:

Aug 25, 1975

Appl. No.:

5/607530

Inventors:

Thomas B. Tippetts - Scottsdale AZ

Assignee:

The Garrett Corporation - Los Angeles CA

International Classification:

B64D 3700

US Classification:

244 78

Abstract:

A fluidic control system which automatically schedules and controls power developed by an aircraft during landing approach operation. Fluidic signals are generated in relation to sensed aircraft flight parameters, and these signals are combined in a preselected manner which includes integration of one of the signals by a series feedback capacitance fluidic integrator, to produce a single input signal indicative of a desired rate of fuel flow to schedule aircraft power to the desired level. The single input signal is temperature compensated, then discretely selectively modified in relation to ambient conditions by selectively varying the impedance of fluidic resistive networks to alter the gain of a fluidic amplifier driven by the single input signal. An error signal is then generated and amplified to produce a power output signal which drives a fuel control servo actuator in proportion to the error signal when the latter is small, and drives the servo in a digital manner when the error is large.

US Patent:

42560152, Mar 17, 1981

Filed:

Dec 8, 1978

Appl. No.:

5/967812

Inventors:

Thomas B. Tippetts - Mesa AZ
Francis M. Manion - Rockville MD

Assignee:

The Garrett Corporation - Los Angeles CA
United States of America - Washington DC

International Classification:

F15B 1316

US Classification:

91364

Abstract:

A fluidic system for stabilizing movement of a body subject to oscillation at its natural frequency, such as a tank-mounted gun, with appropriate circuitry and controls for notch filtering control output signals at the natural frequency.

US Patent:

44679840, Aug 28, 1984

Filed:

Nov 12, 1980

Appl. No.:

6/206195

Inventors:

Thomas B. Tippetts - Mesa AZ

Assignee:

The Garrett Corporation - Los Angeles CA

International Classification:

B64C 1316
F15C 106
F15C 104
F15C 300

US Classification:

244 78

Abstract:

A three-axis navigational guidance system utilizes three specially designed internal jet-type fluidic angular rate sensors which simultaneously sense the rotational rate of a guided body relative to three mutually perpendicular control axes. Fluidic output signals from the sensors are converted to electrical signals which are used to maintain the body in a preselected attitude relative to each of the three axes. The sensors are rendered extremely accurate by means of unique calibration mechanisms associated therewith which compensate for or correct for fabricational inaccuracies in the sensors. The operation of the rate sensing portion of the guidance system is environmentally stabilized by a novel jet-control system which automatically maintains the Reynolds number of each sensor jet within a predetermined range to thereby substantially eliminate jet drift.

US Patent:

44415257, Apr 10, 1984

Filed:

Jul 24, 1980

Appl. No.:

6/171764

Inventors:

Thomas B. Tippetts - Mesa AZ
Francis M. Manion - Rockville MD

Assignee:

The Garrett Corporation - Los Angeles CA
United States Government - Washington DC

International Classification:

F15C 112
F15C 300

US Classification:

137814

Abstract:

A fluidic system for stabilizing movement of a body subject to oscillation at its natural frequency, such as a tank-mounted gun, with appropriate circuitry and controls for notch filtering control output signals at the natural frequency.

US Patent:

44453779, May 1, 1984

Filed:

Nov 12, 1980

Appl. No.:

6/206199

Inventors:

Thomas B. Tippetts - Mesa AZ

Assignee:

The Garrett Corporation - Los Angeles CA

International Classification:

G01P 1500

US Classification:

73516LM

Abstract:

A pressure-to-electric output system is used to convert the dual outlet pressure signals of a fluidic angular rate sensor to a pair of oscillating electrical signals whose relative frequency differential is very accurately indicative of the sensor outlet pressure differential. The sensor outlets are fluidically coupled to the control ports of the first amplifier in a cascaded series of fluidic proportional amplifiers. The outlet ports of the terminal amplifier are coupled to the inlet ports of a pair of fluidic oscillators. A pair of microphone type pressure-to-electric transducers are driven by the oscillators to produce the oscillating electrical signals.