4,215,585

43.35.Yb ULTRASONIC SCANNER

Yutaka Kunii, Toshikuni Shimoji, Masaharu Jingu, assignors to Tokyo Shibaura Electric Company, Limited

5 August 1980 (Class 73/633); fried 21 April 1977

A motion-converting mechanism for rotating an ultrasonic trans- ducer immersed in a transmission fluid is described. "An object of this invention is to provide an ultrasonic scanner small in size, cap- able of freely adjusting the head-shaking angle of an ultrasonic probe, permitting an easy detection of the head-shaking angle of the probe, and enabled to be housed in a sealed vessel. The ultra- sonic scanner according to this invention comprises a holder for holding an ultrasonic probe, pivoting shaft for rotatably pivoting the probe holder, a rotating shaft whose axis is perpendicular to the axis of the pivoting shaft pivoting the probe holder, and a mechanism for converting the rotary motion of the rotating shaft to a rotatingly reciprocating motion of the ultrasonic proble holder."- PMF

4,204,707 43.40.Tm VIBRATION ABSORBING CONNECTOR

Thomas N. Lincicome, John M. Spiro, Albert J. Brons, assignors to UOP Incorporated

27 May 1980 (Class 28/$/114); f'ded 8 December 1978

This invention pertains to a resilient connector for use in tubes

4,209,659

43.40.Tm VIBRATION DAMPER FOR OVERHEAD CONDUCTORS

Ronald G. Hawkins, assignor to Aluminum Company of America

24 June 1980 (Class 174/42); filed 15 February 1979

This device for reducing the wind-induced vibrations of multi- strand electrical transmission lines consists of a mass that is re-

siliently fastened to a metal block attached to the conductor of concern. The resilient elements may be closely wound coil springs or elastomeric configurations capable of dissipating vibratory en- ergy. Specific design features are claimed to provi,cle protection from detrimental effects of the environment, ease of assembly, and improved resistance to corona discharge.-EEU

4,210,234

43.40. Tm TORSIONAL VIBRATION DAMPER

Milford F. Jones, assignor to General Motors Corporation, I July 1980 (Class 192/106.1); filed 9 August 1978

This patent pertains to a design for a torsional vibration absorber for use with a friction clutch, suitable for automotive applications. The design incorporates torsional springs that provide a resilient drive, together with a system of mating abutments that prevent overstressing of the springs in case a predetermined relative angular displacement is exceeded.- EEU

that carry pressurized fluid. Thin-walled metal bellows 26 are brazed to end fittings 22, whose axial motions are restrained by cables 30. An elastomer 38 is cast around the beflows and cables, so as to permit the beflows to withstand higher pressures than it would otherwise. Because this connector is stiff in its axial di-

rection, two such connectors generafly need to be used in a run of tubing, at right angles to each other.-EEU

4,211,105

43.40.Tm METHOD FOR MEASURING THE DAMPING COEFFICIENT OF TORSIONAL-VIBRATION DAMPERS

Imre Z. SzabO, Korn•l Nagy, Csaba Finta, assignors to Magyar Vagon-•s Ge•gy•r

8 July 1980 (Class 73/11); filed in Hungary 27 April 1976

This method for the production testing of dampers of the Hou- daille type (consisting of a cylindrical mass in a close-fitting housing, with a viscous liquid in the spaces between adjacent surfaces), sim- ply involves attaching the damper that is to be tested to the inertia disk of a system consisting of this disk and an end-fixed shaft; then deflecting the disk a given angle, releasing it, and observing the num- ber of oscillations required for the system's amplitude to reach a given magnitude.-EEU.

4,208,928

43.40.Tm TORSIONAL BALANCER DEVICE HAVING VISCOUS DAMPING AGENT

Joachim Conseur and Manfred Hock, assignors to Carl Hasse & Wrede GmbH, Berlin

24 June 1980 (Class 74/574); fried in Germany 30 March 1977

This is another of many patents for torsional vibration absorbers intended for use on piston engines and the like. This absorber, like many others, consists of a ring-shaped inertial element that is con- nected to a hub-mounted disk via annular elastomeric elements.

The novel feature here involves protrusions that extend from the hub-mounted disk into cavities in the inertia ring; the protrusions and cavities have cross sections that are shaped so as to cause fluid in the interstitial spaces to be pumped along narrow passages when there occur small relative angular vibratory displacements. Dissi- pation of oscillatory energy then results from the fluid's viscosity.- EEU

4,220,142

43.50.Yw BEHAVIORAL SHAPING DEVICE FOR ELIMINATING NOCTURNAL SOUNDS

Raymond C. Rosen, Linda J. Rosen, Zoltan L. Sisko, assignors to Raymond C. Rosen, Linda J. Rosen

2 September 1980 (Class 128/IR); filed I September 1977

A device is described to train individuals to eliminate "nocturnal

sounds," like snoring through the use of biofeedback. This system consists of a microphone triggered alarm sy stem that wakes the sleeper during a snoring episode. The invention uses a register to re- cord the number of "events" during the night. In addition, a mem- ory is provided to aid the individual in evaluating his or her progress. Several adjustments are provided to custom fit the device to a variety of sleeping sounds.-PMF

620 J. Acoust. Soc. Am. 69(2), Feb. 1981; 0001-4966/81/020620-01500.80; ¸ 1981 Acoust. Soc. Am.; Patent Reviews 620

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