Robert T Olson

US Patent:

39387780, Feb 17, 1976

Filed:

Dec 19, 1974

Appl. No.:

5/534644

Inventors:

Kenneth P. Hansen - Enfield CT
Robert K. Olson - Bloomfield CT

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

H01F 708
F16K 3104

US Classification:

251129

Abstract:

An immersed electromagnetic torque motor having a movable flapper is protected against the accumulation of contamination in magnetic gaps of the motor and the resulting jamming of the motor by coating the motor with a lacquer or other fluid-impermeable material and mounting the motor in a blind fluid chamber from which the flapper projects. An aperture is provided in the coating at a low flux area on the exterior of the motor to admit the immersing fluid for purposes of mechanical damping and, at the same time, to restrict the migration of fluid and contaminants toward magnetic gaps within the torque motor.

US Patent:

39969975, Dec 14, 1976

Filed:

Dec 22, 1975

Appl. No.:

5/643437

Inventors:

John William Regan - Windsor CT
Robert Leo Olson - Enfield CT

Assignee:

Combustion Engineering, Inc. - Windsor CT

International Classification:

F28D 1904

US Classification:

165 8

Abstract:

A rotary regenerative air heater or heat exchanger in which a series of parallel adjacent plates contained in a plurality of sectorial baskets make up the heat transfer surface. A plurality of bolts permit quick and easy periodic tightening of the heating plates when they become loose within the basket, thereby preventing abrasion and vibratory failure of such plates.

US Patent:

39427579, Mar 9, 1976

Filed:

Oct 10, 1974

Appl. No.:

5/513584

Inventors:

Kenneth B. Hansen - Enfield CT
Robert K. Olson - Bloomfield CT

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

F16K 31524

US Classification:

251 78

Abstract:

A spring biased poppet valve has the exposed end of its poppet plunger engaging the underside of a lever, and the poppet and lever are biased upwardly so that a tit on the upperside of the lever engages a cam surface defined on a cam member loosely mounted on a generally horizontal rock shaft. The shaft can be moved through an angular range of displacements as part of a normal control system, which system receives fluid operating pressure through the open poppet valve. An adjustable stop screw mounted to the shaft is so oriented that the cam member is positively moved about the axis of the shaft when the shaft has reached a predetermined angular displacement, whereby further movement of the shaft permits the spring loaded poppet valve to close.

US Patent:

42731500, Jun 16, 1981

Filed:

Nov 26, 1979

Appl. No.:

6/097585

Inventors:

Stanley R. Paduch - Somers CT
Robert K. Olson - Bloomfield CT

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

G05D 1600

US Classification:

137 85

Abstract:

A temperature or pressure sensor that produces a hydraulic pressure signal proportional to temperature or pressure. The sensor or transducer utilizes a plurality of bellows acting on a valve nozzle plate so that the temperature signal which is a gas pressure moves the nozzle plate to control the flow through the nozzle as a function of temperature thus producing a metered pressure proportional to temperature. The bellows are arranged to minimize temperature error in the transducer. Where the temperature sensed is engine inlet temperature the metered pressure may be used to control the fuel through the turbine engine as a function of the engine inlet temperature. This same device is equally utilized in measuring a pressure, such as compressor discharge pressure.