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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 |
| 6211768 | Non-venting cutout mounted fuse A non-venting current limiting fuse for mounting in a cutout comprises a high current fuse component and a low current fuse component housed in separate compartments of a housing and connected in series. Interruption of a low current overload results in o... | 04/03/2001 |
| 6210331 | Confocal ultrasonic imaging system An ultrasonic imaging system incorporates an imaging device utilizing confocal acoustic focusing of ultrasonic transducers together with apparatus for moving points of focus of the transducers to scan a volume to be imaged and gather data as to the acoust... | 04/03/2001 |
| 6209243 | Display device and array A display element includes a disk which rotates preferably through 160°-180° to display a bright or a dark side in a viewing direction in ON and OFF positions respectively. A constantly on LED is arranged to illuminate the disk in ON position for viewin... | 04/03/2001 |
| 6211100 | Synthetic filter media A composite filter media (100) includes a meltblown/spunbond composite fiber material and a mixed fiber triboelectric material are preferably attached to each other by needling the mixed fiber material with the meltblown/spunbond composite fiber material.... | 04/03/2001 |
| 6203280 | Pump totalizer system A method for totalizing the volume of liquid pumped to or from a vessel by a set of pumps. The method comprises the following steps: Calculating a running time for each of the pumps. Determining a first rate of change of volume when each of the pumps is t... | 03/20/2001 |
| 6203170 | Fish attracting or repelling device comprising diode array A device for attracting and/or repelling fish comprises an array of visible light emitting diodes encased in a water resistant, protective housing which is substantially transparent to the visible light emitted by the diodes. In one preferred embodiment, ... | 03/20/2001 |
| 6203175 | Battery operated picture light A picture lamp for lighting a picture or display mounted on a picture frame includes an elongate, tubular housing capable of holding batteries therein and at least one support wing rigidly connected to a lower section of the housing and arranged to projec... | 03/20/2001 |
| 6199831 | Non-electric perimeter fence A non-electric perimeter fence to prevent animals from entering a restricted area comprises a vertical barrier member extending to a predetermined height above ground level and an angled barrier member extending upwardly and outwardly from the vertical me... | 03/13/2001 |
| 6199626 | Self-enclosing heat exchangers Self-enclosing heat exchangers are made from stacked plates having raised peripheral flanges on one side of the plates and continuous peripheral ridges on the other side of the plates, so that when the plates are put together, fully enclosed alternating f... | 03/13/2001 |
| 6196385 | Golf club locking device A golf club locking device attachable to a golf club bag having a main portion divided into one or more compartments and a mouth portion forming openings in the bag for receiving golf clubs in the compartments. The golf club locking device comprises a loc... | 03/06/2001 |
| 6193655 | Consolidated monitoring cable arrangement A consolidated monitoring cable arrangement allows multiple cables extending between a surgical gurney, or other type of patient support platform, and a peripheral monitoring stand to be consolidated into a single cable. The present use of multiple cables... | 02/27/2001 |
| 6193939 | Apparatus for ultraviolet light treatment of fluids A process is described, for treating liquids with radiation. One process involves passing the liquid over an ultraviolet lamp and ballast assembly which is submerged in the liquid. Apparatus for the process has an elongate frame member which is immersed i... | 02/27/2001 |
| 6190476 | Gypsum board manufacture with co-rotating spreader roller Methods and apparatus are disclosed for producing gypsum board having at least one facing sheet, a core of cementitious material such as low density gypsum, and an intermediate layer of bond promoting material, such as higher density gypsum located thereb... | 02/20/2001 |
| 6189300 | Wrapping machine A packaging machine is shown for individually wrapping objects, such as candies. The machine has a rotary hopper for selecting the objects to be wrapped, folding them and ejecting them precisely onto a delivery conveyor. A continuous wrapping film is laid... | 02/20/2001 |
| 6186458 | Support arm A support arm has a support structure and an arm structure connected to the support structure through a pivotal connection for pivoting about a horizontal axis. A device is provided for adjusting the elevation of the arm structure by pivoting it about the... | 02/13/2001 |
| 6182424 | Packaging apparatus and method A method and apparatus for packaging articles such as flatbreads and stacks of flatbreads utilizes flat loading plates which move axially and rotate about a longitudinal axis. The loading plates have an initial position underneath an input conveyor, and f... | 02/06/2001 |
| 6185264 | Apparatus and method for frequency shift keying A transmitter for generating and transmitting frequency shift keying signals. The transmitter comprises a resonant circuit, a capacitor, a switch for coupling and decoupling the capacitor to the resonant circuit, a sensor and a controller. The controller ... | 02/06/2001 |
| 6181414 | Infrared spectroscopy for medical imaging A multi-channel spectral imaging module for an automated testing system for cytological applications. The multi-channel spetral imaging module generates four channels of digitized images of a cytological specimen for further processing in the automated te... | 01/30/2001 |
| 6179481 | Plug for fibre optic cable A connector for optic fibers includes mechanism to bias the optic fiber forwardly so that a firm "light tight" connection is possible. A rigid end portion of an optic fiber cable extends slidably forward through a plug and is biased forwardly by a helical... | 01/30/2001 |
| 6169706 | Echo detection in pulse-echo ranging systems A method for processing an echo amplitude profile generated by an echo ranging system with reference to a temporal axis to identify return echoes comprised by the profile by identifying amplitude peaks in the profile above with respect to an amplitude axi... | 01/02/2001 |
| 6168532 | Multi-configuration sports/recreation facility A sports/recreation facility is provided with seating bank around a playing area (2), and a grass playing surface (12) which is withdrawable from the playing area. The playing area is defined within one end of a shallow dock (16), the dock extending over ... | 01/02/2001 |
| 6167648 | Illuminated modular sign having adjustable quick release modules An illuminatable sign includes a number of lighting modules arranged on an electrical circuit such that they are individually disconnectable, removable and adjustable in position between conductors. Preferably the lighting modules are slidable on the cond... | 01/02/2001 |
| 6169194 | High surface density covalent immobilization of oligonucleotide monolayers using a 1-(thiotrifluoroacetato)-11-(trichlorososilyl)-undecane linker Oligonucleotides and other biomolecules are immobilized in high density on solid substrates through covalent forces using either a permanent thioether bond, or a chemoselectively reversible disulfide bond to a surface thiol. Substrates which have hydroxyl... | 01/02/2001 |
| 6166998 | Moulded transducer An electro-acoustic transducer is manufactured by forming a transducer assembly at least one piezoelectric element, electrodes contacting the element, and acoustic loading blocks, and applying successive superposed mouldings of material of differing acous... | 12/26/2000 |
| 6161241 | Mattress vents A mattress ventilator is formed by a disk of sheet metal drawn with an array of tubular protuberances having tubular cross-sections which are very small compared with the area of the disk, open ends of the tubular protuberances being retrovertable by a di... | 12/19/2000 |
| 6159695 | High surface density covalent immobilization of oligonucleotide monolayers Oligonucleotides and other biomolecules are immobilized in high density on solid substrates through covalent forces using either a permanent thioether bond, or a chemoselectively reversible disulfide bond to a surface thiol. Substrates which have hydroxyl... | 12/12/2000 |
| 6155759 | Apparatus for milling the surface of a low slope substrate An apparatus for milling the surface of low slope substrate has a milling device, such as a saw, and a track along which the milling device may move. The track is supported above the substrate by a plurality of adjustable supports which have adjustment me... | 12/05/2000 |
| 6154944 | Method for expansion forming of tubing A frame member of rectangular cross section with rounded corners is formed by expansion of a tubular blank within a die cavity having an inner portion of corresponding cross section and an outer transition portion which is of smoothly continuously curved ... | 12/05/2000 |
| 6149623 | Delivery system for pharmaceuticals packed in pharmaceutical vials A system is provided for providing syringes filled with pharmaceuticals whose components must be stored separately, using an active ingredient in a pharmaceutical vial, a diluent in a protosyringe such as a bottomless vial or a cartridge, and a combiner a... | 11/21/2000 |
| 6151355 | Wireless modem A modem unit, typically a wireless modem unit, has a bidirectional digital data port, a modem, a transceiver, and a microcontroller programmed to control the unit according to a control program. The modem unit has a command mode, and the microcontroller i... | 11/21/2000 |
| 6141839 | Clip for attaching lures to a fishing line A clip for attaching a fishing lure or hook to a fishing line comprises an elongate body having a central support member bridging first and second loop portions formed at respective proximal and distal ends of the clip. The support member has a shoulder i... | 11/07/2000 |
| 6135966 | Method and apparatus for non-invasive diagnosis of cardiovascular and related disorders Apparatus and method for non-invasive diagnosis of cardiovascular and related disorders. The system establishes a correspondence between the dynamics of the wave contour of the arterial pressure pulse and the associated disease states. The system comprise... | 10/24/2000 |
| 6135878 | Modular core air diffusers Modular ceiling air diffusers are provided in which the core deflector elements are pre-fabricated in a one-hit one-part pressing operation to form a selected pattern of integral louvers shaped to deflect air in a desired horizontal air pattern. This redu... | 10/24/2000 |
| 6130413 | Safety device for electric cooking stove A safety device for use in conjunction with an electric cooking stove includes a relay unit having a plug having two live pins and a neutral pin for insertion in a stove receptacle, a receptacle receiving a similar plug of a stove, a relay arrangement for... | 10/10/2000 |
| 6129795 | Metallurgical method for processing nickel- and iron-based superalloys A method is provided for improving the microstructure of nickel and iron-based precipitation strengthened superalloys used in high temperature applications by increasing the frequency of "special", low-Σ CSL grain boundaries to levels in excess of 50%. P... | 10/10/2000 |
| 6123685 | Syringe for infusion A syringe is modified to permit gradual administration of its contents with reduced problems due to seizing or stiction of its piston by dividing its piston axially into two parts, a front detached part and rear part which is the only part having provisio... | 09/26/2000 |
| 6121734 | Apparatus for dimming a fluorescent lamp with a magnetic ballast A current controlled dimmer for controlling the output intensity of a fluorescent lamp with a magnetic ballast. The current controlled dimmer generates an AC current which follows the shape of the AC line voltage for the fluorescent lamp. The light intens... | 09/19/2000 |
| 6112254 | Method of detecting characteristics of liquids in pipes and pump controlling In order to determine the nature of fluid passing through a pipe, for example whether material being pumped through a pipe is sludge or liquid phase, high frequency ultrasonic pulses from a generator are caused to propagate around a peripheral wall of the... | 08/29/2000 |
| 6103153 | Production of foamed low-density polypropylene by rotational molding Compositions and processing conditions are disclosed for the production by rotomolding of polypropylene foams, hither to satisfactorily produced only by injection molding and extrusion molding. Rheological properties of the polypropylene resin, processing... | 08/15/2000 |
| 6101748 | Composite panelling materials for displaying back-lit graphics and colors A composite panel material for the back-lit display of graphic and alphanumeric designs and color fields as disclosed which includes regions that appear metallic and highly reflective when front-lit but which when back-lit transmit a portion of the back-l... | 08/15/2000 |
