Bizarre Patents
Process For Propelling Foodstuffs or the Like into a Crowd
A method of launching foodstuffs into a crowd for promotional and entertainment purposes.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4541280 | Efficient laser generation of surface acoustic waves The surface acoustic waves are generated by laser beam that is focussed onto a surface to irradiate it in an arcuate pattern as a partial annulus or as a still or moving fringe pattern. The arcuate pattern may be formed by a transmitting or a reflecting a... | 09/17/1985 |
| 4531410 | Method of and apparatus for detecting flaws inside articles, more particularly structural components, by means of acoustic holography In a method of and an apparatus for detecting flaws inside articles, the flaw area for detection being subjected to ultrasonic pulses on which, after reaction with the flaw, a reference beam is superimposed, whereupon the resulting interference field is h... | 07/30/1985 |
| 4531411 | Acoustic emission linear pulse holography Defects in a structure are imaged as they propagate, using their emitted acoustic energy as a monitored source. Short bursts of acoustic energy propagate through the structure to a discrete element receiver array. A reference timing transducer located bet... | 07/30/1985 |
| 4530242 | Movable ultrasonic transducer array There is disclosed herein a movable, ultrasonic transducer array for use in an ultrasonic inspection system that employs a signal detector and display of the liquid crystal cell type. The movable array uniformly insonifies the object to be inspected and i... | 07/23/1985 |
| 4523469 | Laser generation of ultrasonic waveform reconstructions A series of pulses are transmitted to a first laser and the same series of ulses through a time delay network to a second laser. Each laser provides pulses of light through separate diagonal mirrors and through respective transparent holograms. Each light ... | 06/18/1985 |
| 4507966 | Method and means for imaging sound waves In the disclosed method and structure a pulse of a sound filed to be mapped is illuminated at at least two extremes values at different moments with a laser beam of short duration compared to the period of the illuminated sound pulse and interference prod... | 04/02/1985 |
| 4506550 | Non-destructive testing system employing a liquid crystal detector cell There is disclosed herein an ultrasonic imaging system for use in non-destructively testing objects, which system includes a source of ultrasonic energy, a liquid crystal detector cell and an optical viewing system. The liquid crystal detector cell includ... | 03/26/1985 |
| 4492107 | Acoustic power meter There is disclosed herein an acoustic or ultrasonic power meter which includes a liquid crystal cell for detecting acoustic energy and a control circuit for applying an electric field to said cell. The liquid crystal cell includes a liquid crystal materia... | 01/08/1985 |
| 4393712 | Portable liquid crystal testing device There is disclosed herein a portable device for inspecting bodies for internal flaws or other internal features. The device is constructed so as to be mounted on the surface of the body, emit and receive ultrasonic energy, and display the same on a liquid... | 07/19/1983 |
| 4379408 | Liquid crystal technique for examining internal structures There is disclosed herein an ultrasonic system for detecting internal discontinuities in a body. The system includes: an ultrasonic transducer for directing sonic energy toward a body; a liquid crystal, acousto-optical detector cell for detecting ultrason... | 04/12/1983 |
| 4361042 | Digital type ultrasonic holography apparatus A digital type ultrasonic holography apparatus includes a clock generator for generating a clock pulse signal having a fixed period, a transducer for transmitting spike-like ultrasonic pulses toward an object in synchronism with trigger pulses derived thr... | 11/30/1982 |
| 4338821 | Liquid crystal cell for acoustical imaging The invention is related to an acousto-optical liquid crystal cell and the ways of using it in acoustical holography and imaging systems. The molecules of the liquid crystal layer can be reoriented in a direction perpendicular to the direction of an ultra... | 07/13/1982 |
| 4314739 | Holographic method for conversion of waves A new halographic method for converting one wave into another wave by means of a hologram is disclosed. This method comprises mixing an object wave with a reference wave whose wave front in the hologram plane is different from that of the actual reconstru... | 02/09/1982 |
| 4312229 | Detection, characterization, and study of flaws in work with acoustic energy The work is scanned by acoustic energy from a focused-arc transducer and from an acoustic-lens transducer. An echo-ranging subassembly energizes the focused-arc transducer and processes the echo trains relfected from the lines or pencils in the work along... | 01/26/1982 |
| 4284324 | Acousto-optical imagery system based on coherent holographic detection in real time The invention relates to the acousto-optical imagery of objects transmitting ultrasonic waves; an optical image diffracted by the action of an ultrasonic wave is detected by coherent detection in an electro-optical and photoconductive holographic recordin... | 08/18/1981 |
| 4270388 | Method and apparatus employing zero order Raman-Nath diffraction information to visualize longitudinal character of an acoustic wave field A method and apparatus employing zero order Raman-Nath diffraction information to visualize the longitudinal character of an acoustic field. The method includes the steps of directing a first portion of a beam of coherent light at normal incidence to a re... | 06/02/1981 |
| 4252024 | Flaw detection, characterization and study Echo ranging flaw detecting, characterizing and studying apparatus in which the work is scanned simultaneously by acoustic energy focused at a point from an acoustic-lens transducer and by acoustic energy focused along a line along which it is propagated ... | 02/24/1981 |
| 4222273 | Digital type ultrasonic holography apparatus To provide an improved holographic operation, a digital type ultrasonic holography apparatus is provided utilizing a clock pulse generator having a predetermined periodicity, an ultrasonic pulse beam generator for directing an ultrasonic beam to an object... | 09/16/1980 |
| 4212258 | Underwater apparatus for acoustically inspecting a submerged object An underwater apparatus is described for acoustically inspecting a submerged object at considerable depths such as the lower structural portion of an off-shore drilling rig to determine if the structure has internal defect which cannot be optically detect... | 07/15/1980 |
| 4170142 | Linear transducer array and method for both pulse-echo and holographic acoustic imaging A linear transducer array for transmitting and receiving acoustic waves in both pulse-echo and holographic modes of operation. For pulse-echo acoustic imaging the array includes a linear subarray of transmitting transducer elements disposed in a plane alo... | 10/09/1979 |
| 4165647 | Scan acoustical holographic apparatus and method A scan acoustical holographic apparatus and method is described for sequentially acoustically scanning the interior of an optically opaque volume. The apparatus includes an array of acoustical transducers that are coupled to the volume. A plurality of fre... | 08/28/1979 |
| 4165182 | System for obtaining displacement-amplitude information from a quadrature-dual interferometer A method and apparatus for directly obtaining displacement-amplitude information from a quadrature-dual interferometer. The system uses a "mini-wiggler" to introduce phase shift into the reference beam, as by oscillating a reference mirror with a piezo-el... | 08/21/1979 |
| 4093382 | Hybrid holographic non-destructive test system An automatic hybrid holograhic non-destructive testing (HNDT) method and system capable of detecting flaws or debonds contained within certain materials. This system incorporates the techniques of optical holography, acoustical/optical holography and holo... | 06/06/1978 |
| 4077253 | Apparatus and method for the imaging of the internal structure of a three-dimensional solid and/or liquid object A system employing ultrasound for the reconstruction of the absorptivity and refractivity properties of ultrasonic radiation internal to a solid, liquid or partly solid and liquid object, air vacuoles being excluded, in the vase that this radiation is hig... | 03/07/1978 |
| 4040056 | Method for aberration-free optical recording of highly resolved sonar or radar maps A method for aberration free optical recording of highly resolved sonar or radar maps wherein a series of one-dimensional holograms is recorded as a function of the receiving time with the help of pulsed sonar or radar and is coherently optically reconstr... | 08/02/1977 |
| 4034332 | Ultrasonic transmitting and receiving devices using dielectric transducers The device for transmitting or receiving ultrasonic waves or pulses to and from well-defined adjustable directions or distances includes a capacitive transducer consisting of a layer of dielectric material tightly packed between two electrodes, one at lea... | 07/05/1977 |
| 4028934 | Ultrasonic stereoscopic imaging device An apparatus for three-dimensional visualization of an object or substance with particular utility for determining the presence of breast cancer contains a dual sensing head having two transducers connected to conventional B-scan equipment. The methodolog... | 06/14/1977 |
| 4026144 | Apparatus for the generation of polychromatic ultrasonographs Apparatus for a color coded visualization of ultrasonic field patterns resenting differences in acoustical impedance within a solid or liquid body. Colored ultrasonic images are obtained in response to a multifrequency interrogation of a test specimen by... | 05/31/1977 |
| 4019818 | Interferometric technique for determining ultrasonic wave intensity An interferometer, that simultaneously employs two phase-quadrature reference beams of coherent light which interfere with a signal beam of coherent light reflected from a spot of a displaceable signal mirror insonified by an ultrasonic wave, permits an o... | 04/26/1977 |
| 4012951 | Acoustic examination methods and apparatus An acoustic microscope system in which the insonification frequency fs is continuously modulated, at a rate asynchronous relative to the optical scanning frequencies, to minimize acoustic speckle; the filter means employed to develop a video si... | 03/22/1977 |
| 4006444 | Acoustic imaging apparatus Acoustic imaging apparatus wherein a beam of high frequency acoustic energy is directed to the object to be imaged to create variations in the transmitted acoustic energy which variations are then detected by a plurality of small particles suspended in th... | 02/01/1977 |
| 3997717 | Ultrasonic wave radiation pattern display system incorporating phase contrast means The present system permits image of internal structure of ultrasonic wave scattering object to be visually revealed on a cathode ray tube display with good contrast and good resolution, even when acoustic attenuation characteristics of object are relative... | 12/14/1976 |
| 3996552 | Device for providing a hologram of an insonified object A device for providing a hologram of an object which may be converted to an optical image in real time. The device is part of an acoustical holographic system which uses a source of coherent acoustic radiation to irradiate the object which reflects the ac... | 12/07/1976 |
| 3991606 | Apparatus and method for converting mechanical wave energy to optical energy A piezo-optic cell having a nematic liquid crystal film and first and second wedge-shaped plates on opposite surfaces of the film which serve to vary its frequency response along the length of the cell. The cell is illuminated with polarized light and is ... | 11/16/1976 |
| 3969578 | Visual display of ultrasonic radiation pattern Detection of peak phase change at ultrasonic frequency in two mutually coherent interfering light components, one of which is obtained by reflection from a rigid reference mirror and the other of which is obtained by reflection from a spot of a flexible p... | 07/13/1976 |
