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.
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 |
| 7581419 | Method of using lockable storage container A method for using a lockable storage container includes the steps of moving the lock from a locked position to an unlocked position while the lock is carried by the container. An indicator is used to indicate the status of the lock to the user. The lock is held in ... | 09/01/2009 |
| 7581420 | Lockout device A lockout device is provided for an instrument having a body and an actuating member extending from the body for operating the instrument. The lockout device includes a bottom member, a cover member, and a flexible member. The bottom member is adapted to be position... | 09/01/2009 |
| 7581421 | Door lock assembly having a support structure to support a tailpiece and a retaining plate A door lock assembly includes a transverse retaining plate disposed inside a spindle tube and having a stabilizing part and a retaining tongue projecting into a retention slot in a handle. A support structure is disposed within the handle oppositely of the retention... | 09/01/2009 |
| 7581422 | Device for starting a vehicle engine by means of an electronic key, and key to be used therefor The invention relates to a mechanism (1) for starting a vehicle engine by means of an electronic key (3). Said mechanism (1) comprises a receiving device (2) in the vehicle for inserting the key (3). The key (3) that is inse... | 09/01/2009 |
| 7581423 | Protective cover for a lock A protective cover for a keyway disposed on an end surface of a lock is provided. A housing is adapted to be assembled over the lock end surface. The housing includes an opening that surrounds the keyway. At least one door is disposed in the housing opening. The doo... | 09/01/2009 |
| 7581424 | Method for the reinforcement of a wall region of a three-dimensional attachment A method for the reinforcement of a wall region of a three-dimensional attachment for high torque loads, wherein, a plate with a substantially evenly curved outer contour is cut out of a flat strip and the plate is formed and fine blanked into a pot-shaped body with... | 09/01/2009 |
| 7581425 | Gas sensor calibration system A portable detector is described for monitoring a gas in an atmosphere. The detector comprises a housing, at least one gas sensor carried by the housing, and electrical connectors carried by the housing for establishing electrical connections to a calibration appara... | 09/01/2009 |
| 7581426 | Test adapter for aircraft static vent An adapter to test the static vent of aircraft instrumentation is provided. The test adapter comprises an adapter assembly and a seal holder. The adapter assembly comprises a plurality of prongs adapted to be inserted in the vent's holes. The assembly further compri... | 09/01/2009 |
| 7581427 | Workspace analyte sensing system and method using a fan to move samples from the workspace to the sensor A system and method for sensing and reporting atmospheric analyte levels in a workspace. The system includes (i) a remotely located gas analyte sensor, (ii) a tube attached to the sensor and defining a lumen through which the sensor is placed in fluid communication ... | 09/01/2009 |
| 7581428 | Sensor system and method An oxygen analyzer system includes first and second internally calibrated sensors each for detecting oxygen levels, and a processing subsystem responsive to the sensors. The processor is configured to calibrate the first sensor while the second sensor detects oxygen... | 09/01/2009 |
| 7581429 | Microfluidic device and method of operation A microfluidic device and method for assessing properties of a fluid. The device includes a base supported by a substrate and a tube extending from the base and spaced apart from the substrate surface. The tube has an internal passage, first and second portions adja... | 09/01/2009 |
| 7581430 | Air velocity apparatus and system An apparatus and a system is provided that may be utilized to determine air flow through an air filter and/or a plurality of air filters. The present invention utilizes a demonstration apparatus to illustrate the differences in air flow and air restriction between a... | 09/01/2009 |
| 7581431 | Gas leak detection device and method for same A gas leak detection device for a fuel cell system equipped with a main valve (SV1) in a fuel gas supply source (11), comprising a shutdown valve (SV2) provided in a fuel gas supply channel downstream of the main valve (SV1), pressure mon... | 09/01/2009 |
| 7581432 | Systems and methods for monitoring the integrity of a tank A conduit is connected to the interstice between an outer and inner wall of a storage tank or the liner thereof and may be used to monitor the integrity of the interstice. The conduit comprises a coupling in fluid communication with the interstice, a tube connected ... | 09/01/2009 |
| 7581433 | Cylinder leak detector An apparatus and method for detecting cylinder leaks in an internal combustion engine includes a hose having an end configured for communication with a spark plug hole connecting to a cylinder to be tested and an end for attachment to a source of pressurized gas. Fl... | 09/01/2009 |
| 7581434 | Intelligent fluid sensor for machinery diagnostics, prognostics, and control A system that facilitates device and/or machinery diagnostics, prognostics and control by way of condition sensing, such as sensing the condition of the device and/or a fluid of the device (e.g., fluid health indicators). The system can employ a plurality of sensors... | 09/01/2009 |
| 7581435 | Method and apparatus for acquiring physical properties of fluid samples at high temperatures and pressures Embodiments of the present invention are directed to an apparatus for acquiring physical properties of a fluid sample at high temperatures and pressures. The apparatus comprises a sample manifold, one or more pressure intensifiers to push or pull a sample through th... | 09/01/2009 |
| 7581436 | Method for operating a couette device to create and study emulsions A method for generating and characterizing an emulsion. The method provides a Couette device having first and second cylindrical members that define an annulus between them. The second cylindrical member is rotatably driven with respect to the first cylindrical memb... | 09/01/2009 |
| 7581437 | Level sensor for granules in water The present invention relates to a system for measuring the level of granular material in a container immersed in an aqueous medium, particularly, but not exclusively, for use as a measure of sanitizer level in spa and whirlpool halogenation systems. Electrodes fixe... | 09/01/2009 |
| 7581438 | Surface texture measuring probe and microscope utilizing the same A surface texture measuring probe (60) includes a probe head (65), a first supporting body (61), a second supporting body (62), a piezoelectric element (63) and a balancer (64). The first supporting body includes a first sup... | 09/01/2009 |
| 7581439 | Elastomeric article with wireless micro and nano sensor system A sensor system for obtaining data from an elastomeric article includes at least one wireless sensor. The sensor length-scales range from nano- to micro-scale devices that are small enough to avoid becoming occlusions within the article. The article may include sens... | 09/01/2009 |
| 7581440 | Apparatus and methods to perform downhole measurements associated with subterranean formation evaluation A system for testing a subterranean formation penetrated by a well includes a downhole tool configured to be coupled to a work string that includes a tool body having a longitudinal bore for circulating a fluid and at least one aperture configured to receive at leas... | 09/01/2009 |
| 7581441 | Method and device for protecting an aircraft against clear air turbulence The invention relates to a method of protecting aircraft in flight against clear air turbulence (CAT). Consider an aircraft occupying a position P and moving horizontally at a speed V, a plane PH0 being the horizontal plane passing through P. According to... | 09/01/2009 |
| 7581442 | Optically monitoring fullness of fluid container A relative fullness of a fluid container is monitored by directing reference light at a bottom surface of the fluid container. The fluid container is designed so that the amount or pattern of reference light reflected from the fluid container varies in relation to t... | 09/01/2009 |
| 7581443 | Disc resonator gyroscopes Embodiments of the present invention are directed to apparatuses and methods of making a micromachined resonator gyroscope, e.g. a disc resonator gyro (DRG), including one or more of the following novel features. Embodiments of the invention may comprise a triple-wa... | 09/01/2009 |
| 7581444 | Method and circuit arrangement for disturbance-free examination of objects by means of ultrasonic waves A method and circuit arrangement for processing signals which are produced during disturbance-free examination of objects such as pipes or sheet metal, by reflecting ultrasonic waves at defective spots on the structure of the object. According to the method, a compl... | 09/01/2009 |
| 7581445 | Method for ultrasonic testing of fitting assembly Apparatus and method for determining relative and/or absolute axial position of a conduit end within a fluid coupling includes application of input ultrasonic energy in the form of transient shear waves and analyzing the reflected energy. Application of the input en... | 09/01/2009 |
| 7581446 | Methods, systems, and computer program products for determining a property of construction material Methods, systems, and computer program products for determining a property of construction material. According to one aspect, a material property gauge operable to determine a property of construction material is disclosed. The gauge may include an electromagnetic s... | 09/01/2009 |
| 7581447 | Temperature compensating pressure sensing arrangement The invention provides for a temperature compensating pressure sensing arrangement. The arrangement includes a substrate having sealed channels on which is deposited a CMOS layer, with a conductive layer and a passivation layer deposited on the CMOS layer. The arran... | 09/01/2009 |
| 7581448 | Sensor and manufacturing method of sensor A pressure sensor is provided with a cap on a measuring portion of a diaphragm to which a first end of a flexible board is connected while a second end of the flexible board is connected to a circuit board spaced apart from the diaphragm. The flexible board is provi... | 09/01/2009 |
| 7581449 | System and method for power pump performance monitoring and analysis A power pump performance analysis system and methods includes a signal processor connected to certain sensors for sensing pressures and stresses in the cylinder chambers and the inlet and discharge piping of a single or multicylinder pump. Pump speed and pump piston... | 09/01/2009 |
| 7581450 | Relaxation modulus sensor, structure incorporating same, and method for use of same A sensor for measuring material properties such as the relaxation modulus of a material in situ and a method of measuring material properties of a material are disclosed. The sensor may be substantially embedded in the material, and includes a deformable driver. Whe... | 09/01/2009 |
| 7581451 | Method and apparatus for flexure testing to discover inconsistencies in composite structures A method and apparatus for detecting and inspecting composite structures to discover inconsistencies by the force and displacement caused by extension of a stylus driven against the composite structure a fixed distance. The measurement of the force on the stylus and... | 09/01/2009 |
| 7581452 | System and method for soil strength measurement A system and method for characterizing soil shear strength from a vehicle, comprises a plurality of sensors mounted on a vehicle and configured to measure distances from the sensors to the soil surface. The sensors comprise a first sensor disposed on the vehicle and... | 09/01/2009 |
| 7581453 | Ultrasonic flow meter system An ultrasonic flow meter system includes transducers arranged with respect to a conduit to define at least one chordal path through fluid flowing in the conduit, and at least one transmitting transducer and receiving transducer pair on the chordal path for generatin... | 09/01/2009 |
| 7581454 | Method of measuring the performance of a prosthetic foot A method of measuring the performance of a prosthetic foot includes obtaining a pressure distribution of the prosthetic foot during a motion of the prosthetic foot and determining whether the pressure distribution falls within a preselected range of performance valu... | 09/01/2009 |
| 7581455 | Magnetostrictive torque sensor and electric power steering apparatus A magnetostrictive torque sensor includes a rotating shaft rotatably supported; magnetostrictive materials provided on a surface of the rotating shaft, magnetic permeability of which changes according to the magnitude of rotary torque acting on the rotating shaft; a... | 09/01/2009 |
| 7581456 | Wireless sensors in roll covers An industrial roll includes: a substantially cylindrical shell having an outer surface; a polymeric cover circumferentially overlying the shell outer surface; and a sensing system. The sensing system includes: a plurality of sensors embedded in the cover, each senso... | 09/01/2009 |
| 7581457 | Method and apparatus for testing materials An apparatus for performing tests on materials, the apparatus comprising a leaktight receptacle defining an inside volume, the receptacle being provided with an opening and the ability to provide leaktight contact between the edges of the opening and a portion of a ... | 09/01/2009 |
| 7581458 | Method and apparatus for segregation testing of particulate solids A bed of particulate solids is fluidized in a test chamber to yield multiple test samples for subsequent evaluation of segregation effects. A controlled stream of gas enters the chamber in a series of flow rate cycles each progressively increasing to a maximum rate ... | 09/01/2009 |