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The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| 7360435 | Ultrasonic control of bolt tightening Tightening of a bolt is controlled by monitoring the change in round trip time of propagating longitudinal ultrasonic waves through the bolt and the reflection of these waves at the end of the bolt. The round trip time of the longitudinal waves through bolt is conti... | 04/22/2008 |
| 7337672 | Method for inspecting grinding wheels This invention discloses a method of evaluating the internal structure of a grinding wheel through ultrasonic inspection. ... | 03/04/2008 |
| 7334479 | Systems and methods for non-contact measuring sputtering target thickness ultrasonics A method and apparatus for ultrasonically measuring the thickness of sputter targets of varying shapes. An immersion bubble (32) and transducer (36) provide pulses to a front surface (24) and a front surface/bonded surface (26) interface ... | 02/26/2008 |
| 7336015 | Method of manipulating wafers A method of manipulating preferable thin wafers, preferably having a thickness of less than 200 μm, wherein the wafers are placed prior to polishing or another processing step for reducing the thickness thereof on a transportable electrostatic carrier. The wafers r... | 02/26/2008 |
| 7204888 | Lift pin assembly for substrate processing Embodiments of the present invention provide an apparatus for constraining and supporting the lift pins to prevent or minimize lateral movement of the lift pins that causes substrate hand-off problems and associated degradation in substrate processing characteristic... | 04/17/2007 |
| 7204129 | Real-time system for detecting foreign bodies in food containers using ultrasound An ultrasound system determines the presence of a foreign object in a container of fluid by measuring echo signals from the outer surface of the container and the inner surface of the container. The amplitude of the echo signals are compared to determine the presenc... | 04/17/2007 |
| 7073383 | Apparatus and method for determining clamping status of semiconductor wafer An apparatus determines how well a semiconductor wafer (4) is clamped to a support member (1). The apparatus has at least one ultrasonic transducer (2a,2b,2c,2d) configured to emit ultrasonic ener... | 07/11/2006 |
| 7036287 | Method and device for inspecting and monitoring the seal integrity of sterile packages A system for inspecting seal integrity of a sealed package including a visual inspection system and a medical packaging system having an integral peel testing device. ... | 05/02/2006 |
| 6993972 | Real-time system for detecting foreign bodies in food containers using ultrasound An ultrasound system determines the presence of a foreign object in a container of fluid by measuring echo signals from the outer surface of the container and the inner surface of the container. The amplitude of the echo signals are compared to determine the presenc... | 02/07/2006 |
| 6920793 | Systems and apparatus for airborne ultrasonic testing of package and container seals Systems and devices for testing or inspecting the integrity of package closure seals using contact and non-contact ultrasonic systems wherein a relative movement is created between a package seal and at least one ultrasonic transmitting transducer and at least one r... | 07/26/2005 |
| 6918301 | Methods and systems to detect defects in an end effector for conditioning polishing pads used in polishing micro-device workpieces Methods and systems to detect defects in an end effector for conditioning polishing pads used in polishing micro-device workpieces are disclosed herein. In one embodiment, a method of detecting defects in an end effector includes applying energy to a contact element... | 07/19/2005 |
| 6840108 | Method and apparatus for airborne ultrasonic testing of package and container seals A method for testing or inspecting the integrity of package closure seals using contact and non-contact ultrasonic systems wherein a relative movement is created between a package seal and at least one ultrasonic transmitting transducer and at least one receiving tr... | 01/11/2005 |
| 6807861 | Instrument for noncontact measurement of physical property A noncontact physical property measurement instrument which easily and accurately measures physical properties of an object using a nondestructive, noncontact sensor. A noncontact physical property measurement instrument 1 is provided with a transmitting sect... | 10/26/2004 |
| 6578423 | Acoustic detection of dechucking and apparatus therefor In a vacuum processing chamber, a monitoring arrangement for detecting when a substrate is sufficiently dechucked by an electrostatic clamp to allow safe movement thereof by a transfer mechanism such as a pin lifter. The monitoring arrangement includes an... | 06/17/2003 |
| 6247368 | CMP wet application wafer sensor A semiconductor post-polishing processing apparatus and method employing a non-optical wafer sensor for detecting the presence of a semiconductor wafer within the processing stations. The apparatus comprising a wet processing station, a wafer transport tr... | 06/19/2001 |
| 6202490 | Nondestructive testing apparatus A nondestructive testing apparatus is provided with a wave transmitter by a metal-based magnetostrictive vibrator, a magnetically excited current feeding device for feeding the magnetically excited current to the magnetostrictive vibrator, a wave receiver... | 03/20/2001 |
| 6182511 | Acoustic bottle tester and conveyor therefor A vacuum conveyor for transporting articles across a space wherein the conveyor belt for the vacuum conveyor has a plurality of equally spaced apart fluid passageways formed therein and wherein a one way valve is installed in each fluid passageway so that... | 02/06/2001 |
| 6035718 | Acoustic bottle tester A bottle testing apparatus for testing bottles for flaws of a predetermined magnitude, the bottles having a predetermined bottle configuration and having at least one natural frequency comprising a sound system which produces sound of a character sufficie... | 03/14/2000 |
| 5948986 | Monitoring of wafer presence and position in semiconductor processing operations A workpiece support assembly in a processing chamber, the assembly including a support member having an upper surface to be contacted by a workpiece and a lower surface located opposite the upper surface; and a workpiece position monitoring system mounted... | 09/07/1999 |
| 5654508 | Method of determining a store's physical inventory New physical principles are used to determine the number of inventory goods on a store's display shelves. One principle involves transmitting waves (mechanical, sound or ultrasound) thru an unknown number of goods resting on an insulated plate. Another pr... | 08/05/1997 |
| 5571966 | Method and apparatus for predicting lifetime of measured object A nondestructive inspection method predicts the lifetime of a measured object. A measured object is made to vibrate, and there is obtained a frequency difference .increment.f between a frequency of a nth-order spectrum and a frequency of a (n+1)th-order s... | 11/05/1996 |
| 5485750 | Process for finding the value of parameters capable of changing the resonance frequency of microstructures In a process for finding the value of parameters which change the resonance frequencies of microstructures wherein the microstructures include at least one membrane mounted at its periphery and wherein at least one resonance frequency of the microstructur... | 01/23/1996 |
| 5479826 | Microwave system for monitoring turbine blade vibration A method for monitoring turbine blade vibrations comprises the step of transmitting a continuous wave of microwave energy toward a rotating row of blades. Each passage of an individual blade tip through the path of the continuous wave produces a signal in... | 01/02/1996 |
| 5467655 | Method for measuring properties of cold rolled thin steel sheet and apparatus therefor A method for measuring properties of a cold rolled thin steel sheet, comprising the determination, by using a resonant electromagnetic ultrasonic wave sensor for a standing wave, of the ratio of a thickness resonant frequency of a transverse ultrasonic wa... | 11/21/1995 |
| 5404754 | Ultrasonic detection of high temperature hydrogen attack This invention defines a combined inspection procedure using ultrasonic techniques for detection of hydrogen attack damage in material. The procedure comprises an initial scanning procedure for locating areas suspected of being damaged by hot hydrogen. Th... | 04/11/1995 |
| 5216638 | Method and apparatus for the acoustic investigation of a casing cemented in a borehole Method for determining at least one characteristic of a casing cemented in a borehole, such as cement bond and casing thickness, from a reflected acoustic signal S(t) obtained by directing an acoustic pulse at a substantially normal incidence towards a ra... | 06/01/1993 |
| 4893510 | Method of measuring distribution of crystal grains in metal sheet and apparatus therefor In measuring a distribution of crystal grains in metal sheet, an exciting frequency of ultrasonic wave is determined such that a wavelength of the ultrasonic wave propagated in a direction of the sheet thickness of the grains each having an aimed orientat... | 01/16/1990 |
| 4399701 | Method and means for detecting decay in wood A method and apparatus for detecting degradation in wood by applying acoustic waves along the wood grain and measuring the bandwidths and frequencies or standing wave resonances induced in the wood as the frequency of the applied waves is varied. Good qua... | 08/23/1983 |
| 4142188 | Method and apparatus for monitoring sound-conducting media A method of, and apparatus for, monitoring sound-conducting media wherein sound vibrations are transmitted to and absorbed by the sound-conducting medium. The frequency of the transmitted sound vibrations periodically pass through a predetermined frequenc... | 02/27/1979 |
| 4062227 | CW ultrasonic bolt tensioning monitor This invention is a CW ultrasonic device for measuring frequency shifts of the peak of a mechanical resonance in a body. One application of the device is measuring the strain in a bolt. It also has other applications such, for example, as measuring the th... | 12/13/1977 |
