Abstract: In a preferred embodiment, the flywheel electric transmission system is made up of three electric machines and a flywheel and is adapted for use in an automobile. The first electric machine is driven or energized by a prime mover such as a heat engine and is selectively clutched to the second machine. The flywheel and the armatures for both the first and second machines rotate as a unit. The third machine is connected to the second machine through gearing and, under the control of a computer, supplies excess electrical power to or consumes excess electrical power from the first and second machines that are functioning as either a motor or generator as required. In a second embodiment, the energy source is a battery pack.
Abstract: A method and apparatus for processing monopulse radar return signals to synthesize the imaginary component (.beta..sub.I) of the complex angle of arrival. Scintillation errors in the real component (.beta..sub.R) of the complex angle of arrival can then be reduced on a pulse-by-pulse basis by the criterion that .vertline..beta..sub.I .vertline. be small in magnitude and gating the .beta..sub.R signal when this criterion is not met.
Type:
Grant
Filed:
February 6, 1974
Date of Patent:
October 20, 1981
Assignee:
Calspan Corporation
Inventors:
Frank M. Pelton, Clyde A. Miller, Thomas F. Leney
Abstract: An electrochemical stripping process is employed to selectively remove the metallic sheath from a thermocouple or resistance element without affecting the core material. The sheath is connected as a consumable anode and is inserted to a depth corresponding to the amount of the sheath to be removed. The core material is electrically isolated from the sheath and is therefore unaffected by the electrochemical process.
Type:
Grant
Filed:
April 14, 1980
Date of Patent:
September 1, 1981
Assignee:
Calspan Corporation
Inventors:
James A. Weibel, Sr., Franklin A. Vassallo
Abstract: The projectile and propellant portions of two-piece cartridge are separately fed to a gun. In one embodiment, the gun is of the type having a cylinder defining a plurality of chambers and a single barrel. The cylinder rotates through a number of positions during each revolution during which the projectile and propellant portions of a cartridge are separately loaded into each chamber, the cartridge is fired and the chamber is cleared.
Abstract: Uniform and repeatable formation of a resistance element on a substrate is achieved by spinning the coated objects which are still in a wet state while rotating them about an orthogonal axis to subject the wet indicator formulation to centrifugal forces which forces the indicator formulation into contact with the substrate.
Type:
Grant
Filed:
April 16, 1980
Date of Patent:
June 2, 1981
Assignee:
Calspan Corporation
Inventors:
Vito A. DePalma, Anne E. Meyer, Albert K. Ashby
Abstract: A cannula/catheter is provided which is suitable for long term or semi-permanent through-the-skin function while permitting tissue ingrowth which promotes healing and seals out sources of infection. The catheter is provided with a sheath formed of an elastomeric coating which is glow discharge treated, folded back on itself to form a cuff and surgically implanted and anchored in place. The cuff portion of the sheath is advanced outwardly by the growth of skin adherent to its periphery while the catheter is maintained in its original position.
Abstract: An unimpeded optical path across a low-pressure supersonic stream of a high-power laser is achieved by rotating a window assembly at a predetermined constant speed. The centrifugal gasdynamic window assembly acts as a centrifugal compressor with no net radial flow. The no net radial flow condition is achieved by matching the compression ratio to the pressure difference between the flowing laser medium and ambient.
Abstract: Water and air are tested for biological agents by concentrating the biological substances at an air/water interface which permits natural cell multiplication during the concentrating process.
Abstract: A three-lobe Root's blower is provided with feed back structure to bring the gas trapped in the impeller well volumes up to the discharge pressure prior to delivery. An essentially uniform and pulse-free discharge is produced by having a constant feed back flow rate which is achieved by always having a trapped impeller well volume in communication with the outlet via feed back structure which is sized to yield a continuous feed back flow rate.
Abstract: A modulating signal which is selectively changed as a function of time is applied to the modulating diodes of a retrodirective array. The diodes modulate the signal reflected from the array. A decoder coacting with the illuminating radar can extract information from the time-frequency code superimposed on the return signal to thereby identify the target.
Abstract: A stall control system for axial flow compressors incorporating: a plurality of pressure transducers for developing signals indicative of the nonsteady pressure variations within the compressor and wherein these signals are separately filtered and rectified; analog comparators and gate comparators for each such signal to develop an output indicative of the difference between each of the signals and an adjusted pressure reference signal which is derived from the pressure rise across the compressor; a logic circuit for generating an actuating signal if any one of such signals is higher than the reference signal for controlling the opening of a gate which passes the combined pressure signals to an integrator which develops an output control signal to take corrective action in the presence of rotating stall within the compressor: an adjustable time delay circuit providing long and short decay times to prevent over-control.
Abstract: Laser output from the fundamental, first overtone, and second overtone transitions in CO is achieved in a supersonic flow laser using an electric-discharge-excited CO/He/O.sub.2 mixture.
Abstract: A method for locatingweak targets such as power lines and tree tops in the presence of terrain clutter by separating the weak target from the clutter in the elevation plane.
Abstract: A demountable, rectangular, liquid sample flow cell is provided which can be used to make streaming potential or streaming current measurements from which the zeta potential is calculated. By providing an infrared transparent window in the flow cell, a real-time monitoring of surface deposition rates and amounts can be determined by infrared radiometry. Because the flow cell is completely demountable, direct analysis of the internal surfaces exposed to the flowing solution is possible.
Abstract: The dispensing of the chaff fibers takes place in two distinct steps. Initially, a mixture of chaff and fluidization media is delivered to a fluidization chamber. Bleed air from the jet engines is caused to flow through the mixture of chaff and fluidization media to thereby cause the chaff fibers to churn and become separated in the fluidization chamber. Valves located at the ends of the fluidization chamber open in response to pilot or onboard ECM system activation to dispense the pre-separated chaff fibers.
Abstract: A sintered projectile having the same ballistic characteristics as a conventional combat projectile is provided with controlled strength properties and predetermined breakage lines. As a result, small, high drag fragments are produced on impact which minimizes ricochet hazards and provides a safer practice round.
Abstract: Distance is measured with a tone modulated AM radio system by making a signal at the ranging tone frequency phase coherent with respect to the modulation on the RF signal at the input to the receiver by means of a product detector located ahead of the receiver of the transponder. In this way, a ranging tone phase is established which is a direct and accurate measure of the modulation phase (delayed by the propagation time) and is independent of any modulation phase shifts experienced in the receiver.
Abstract: Thermal radiation, or any incoherent radiation at the desired wavelenths, is converted into laser energy by using radiant absorption from a radiation source by a cold gas. The cold gas absorbs vibrational energy while remaining otherwise cold, and exchange of vibrational energy between molecules at this low temperature causes population inversions.
Abstract: A phase coherent canceller for jamming suppression is provided with a variable controlled oscillator which is locked in frequency and phase to a reference local oscillator in a closed loop configuration.
Abstract: When using CO as the absorbing and lasing species for vibration-vibration energy transfer and subsequent vibration-vibration pumping, CO can be made to dissociate and subsequently form C.sub.2 with isotope separation, or CO may be made to chemically react with N.sub.2 to produce CN with isotope separation.
Type:
Grant
Filed:
September 14, 1977
Date of Patent:
March 6, 1979
Assignee:
Calspan Corporation
Inventors:
Joseph W. Rich, Richard C. Bergman, Charles E. Treanor