...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 6189318 | Internal combustion engines An internal combustion engine is provided with a vacuum pump (17) to remove burnt gases form the engine cylinders during an exhaust stroke. The vacuum applied by the pump (17) is sufficient to remove the gases during an exhaust stroke and also apply a for... | 02/20/2001 |
| 6189319 | Removal of air from hydraulic system An arrangement for removing contaminants from a hydraulic system includes a portable fluid pump for introducing fluid into or evacuating fluid from the hydraulic system and a resilient adapter capable of conforming to openings of different size in the hyd... | 02/20/2001 |
| 6189320 | Burner for fluidic fuels having multiple groups of vortex generating elements A burner, in particular for a gas turbine, in which combustion air is subjected to a vorticity by a vortex element, admits fuel to the vortical combustion air. At the same time, a pressure loss produced by the vortex element is small. A low NOx... | 02/20/2001 |
| 6189321 | Distributor A distributor for supplying burners of a gas turbine with fuel, air and coolant. Prior art distributors contain a combination of ring lines and tie lines, over which the fuel is distributed to individual burners. It is very complicated and expensive to re... | 02/20/2001 |
| 6189322 | Refrigerant-circulating system, and refrigerant compressor and refrigeration cycle employing the refrigerant compressor A refrigerant-circulating system which comprises a refrigeration cycle comprising a refrigerant compressor, a condenser, an expansion mechanism and an evaporator to form a refrigerant circuit and employing a refrigerant which contains no chlorine, wherein... | 02/20/2001 |
| 6189323 | Air conditioner with improved valve controller and valve control method therefor In an air conditioner having a plurality of valves for adjusting the flow of refrigerant circulating in an outdoor unit and an indoor unit, and a controller for controlling the opening degree of each of the valves while successively switching the control ... | 02/20/2001 |
| 6189324 | Environment control unit for turbine engine An environmental control unit to supply cool dry air to an aircraft cabin has a plurality of bleed air sources from an aircraft engine compressor supplying working fluid to an air cycle cooling circuit. An electronic control computer having a plurality of... | 02/20/2001 |
| 6189325 | Air conditioning system for a motor vehicle An air conditioning system (10) for a passenger compartment of a motor vehicle having a windscreen comprises a first heat exchanger (14) positionable outside the passenger compartment; a second heat exchanger (18) positionable inside the passenger compart... | 02/20/2001 |
| 6189326 | Pressure control valve A temperature sensing portion of a control valve main body is located in a first refrigerant passage for communicating an outlet side of a radiator with an inlet side of an internal heat exchanger, and a second refrigerant passage for introducing the refr... | 02/20/2001 |
| 6189327 | Evaporative personal cooler A self-contained evaporative personal cooling device fits conformally around a user's neck or other body portion. The device includes at least one heat dissipating member that is urged conformably against the body portion to absorb heat therefrom. The dev... | 02/20/2001 |
| 6189328 | Separate type air conditioner and assembly method thereof A separate type air conditioner has an indoor unit and an outdoor unit. The indoor unit comprises (a) a base frame, (b) a power source board incorporating a control device, (c) operation members mounted on the power source board, and (d) a front grille in... | 02/20/2001 |
| 6189329 | Cascade refrigeration system A cascade refrigeration system is provided. The cascade refrigeration system includes a low stage having a first refrigerant flowing therethrough and a high stage having a second refrigerant flowing therethrough. The low stage includes a compressor and ev... | 02/20/2001 |
| 6189330 | Container, system and process for shipping and storing food products and method for recycling shipping and storage containers A container for shipping and storing food products in two separate chambers has an outer casing enclosing a temperature controlled container fabricated from an insulating material. The temperature controlled container includes a lid and a base. The base h... | 02/20/2001 |
| 6189332 | Air conditioner and its manufacturing method The invention includes a step of supplying at least one heat control means of heating means and cooling means for conditioning the air temperature, and a step of manufacturing a fan for blowing air controlled by the heat control means, in which the step o... | 02/20/2001 |
| 6189333 | Refrigerant filter for use in an automotive air conditioning system A refrigerant filter (40) designed for installation into a block fitting (10) of the type that detachably connects refrigerant lines (12,14) to an evaporator. The filter (40) includes a cylindrical mesh screen (42) and a supporting frame (44) that fits in... | 02/20/2001 |
| 6189334 | Air conditioner In an air conditioner for a motor vehicle, an internal heat exchanger is combined with a condenser and a collector.... | 02/20/2001 |
| 6189335 | Multi-stage compressing refrigeration device and refrigerator using the device There is disclosed a multi-stage compressing refrigeration device for multi-stage compressing a refrigerant using a plurality of compressing means. Its object is to enhance reliability, intend to reduce input and improve refrigeration effect, and to enhan... | 02/20/2001 |
| 6189336 | Apparatus for facilitating the formation capture and compression of solid carbon dioxide particles A method and apparatus for facilitating the conversion of liquid carbon dioxide to solid carbon dioxide particles for compression into pellets or blocks using a liquid carbon dioxide conversion apparatus having a compression assembly and at least one snow... | 02/20/2001 |
| 6189337 | Air separation apparatus There is provided an air separation apparatus comprising, in fluid flow communication, a compressor having at least two stages in senes, a first outlet from a stage upstream of the final stage, an air purifier in fluid flow communication with the outlet a... | 02/20/2001 |
| 6189338 | Brazed-plates condenser and its application to double air-distillation columns In this condenser in which the fluid as it condenses flows downward, in cross section, that part of the outlet box (18) which lies between its lowermost point (28) and the point (31) of a liquid-outlet pipe (30; 35) connected to this box, lies completely ... | 02/20/2001 |
| 6189339 | Method for producing silica glass used for photolithography A method for producing a silica glass for photolithography, which comprises the following steps: jetting a starting material gas, an oxygen gas and a hydrogen gas from a burner and depositing and consolidating silica glass powder on a target to form an in... | 02/20/2001 |
| 6189340 | Process for forming a titania-containing preform silica glass blank Disclosed is an optical waveguide fiber having a compressive outer layer that includes TiO2 in the SiO2 matrix glass. The compressive outer layer includes crystalline structures containing TiO2 that are predominately rutil... | 02/20/2001 |
| 6189341 | Method of making an optical fiber with digestion of retracting particles on the preform In accordance with the invention, particle contamination in drawing optical fiber is reduced by coating the glass preform with a particle-digesting coating prior to introducing the preform into the induction furnace. At least the end of the preform should... | 02/20/2001 |
| 6189342 | Method of making segmented core optical waveguide preforms A method of making a segmented core optical waveguide preform for making fiber that is resistant to attenuation increases due to hydrogen and heat aging. A first core region comprising a silica glass rod containing at least a first dopant is inserted into... | 02/20/2001 |
| 6189343 | Apparatus and method for forming an optical fiber An apparatus for forming a optical fiber which includes a furnace for softening an optical fiber blank; a tractor for drawing the optical fiber from the softened optical fiber blank; and a first applicator for applying a coating of a first coating materia... | 02/20/2001 |
| 6189344 | Method for low frequency sound distribution of rotary fiberizer veils A method and device is disclosed for distributing a veil by applying low frequency sound to at least one portion of the veil, and causing the veil to deviate in its generally downward direction of travel. In its simplest embodiment, the lapping device of ... | 02/20/2001 |
| 6189346 | Clothes treating apparatus A clothes treating apparatus including a cabinet defining an interior region in which a garment can be hung. A door is movably connected to the cabinet for closing the interior region. A fluid atomizing nozzle is supported by the cabinet and is fluidly co... | 02/20/2001 |
| 6189347 | Training handcuff key A training handcuff key for use during training of security officers in the use of handcuffs used to restrain a subject. The training key includes a magnet washer that holds the key adjacent the surface of the handcuff keyhole, even during violent jerking... | 02/20/2001 |
| 6189348 | Retightenable and resettable strap lock A retightenable and resettable strap lock for luggage includes a female buckle member with number wheels, a male buckle member for releasably engaging with the female buckle member, and a strap connected to the female buckle member and the male buckle mem... | 02/20/2001 |
| 6189349 | Single retracting security hook of desktop port replicator providing security for dissimilar multiple portable computers A security mechanism is provided, for use with portable equipment, such as a "notebook" type portable computer, which is to be coupled for use with stationary equipment, such as a port replicator or docking station. The security mechanism includes locking... | 02/20/2001 |
| 6189350 | Device for locking channel opening-closing handle of fluid controller A locking device comprises a stopper support fixed to the body of a fluid controller, and a stopper nonrotatably mounted on the stopper support and engageable with a channel opening-closing handle for preventing the rotation of the handle. The stopper mou... | 02/20/2001 |
| 6189351 | Door lock with clutching mechanism A door lock having a clutching mechanism for selectively engaging and disengaging the outer handle of the lock from a key spindle having latch scoops for operably engaging a latch slide. The key spindle contains a cam mechanism for moving a dogging arm fr... | 02/20/2001 |
| 6189352 | Drive device for roll stands A driving arrangement for rolling stands of a rolling mill, is described. The driving arrangement includes a control system which prescribes desired values for the rolling stands via control units, the rolling stands having at least one electric motor whi... | 02/20/2001 |
| 6189354 | Method and modular-multistation device for folding profiles The invention relates to a method and multistation device for folding profiles. The folding stations (1, 11, 15, 16, 17) required are modules mounted interchangeable and adjustable on a common machine body (2), which permits quick and simple adaption to t... | 02/20/2001 |
| 6189355 | Strength-enhancing apparatus for metal part Disclosed is a strength-enhancing apparatus for a metal part comprising a recovery mechanism for sucking powder flow dust generated from glass beads crushed on a surface of a gear in a chamber to recover it together with drainage, wherein the recovery mec... | 02/20/2001 |
| 6189356 | Method and apparatus for peening A mask for masking a corner of a metal component during peening. The component has a first surface defining an opening in the component and a second surface intersecting the first surface of the component at the corner. The mask includes a plug sized and ... | 02/20/2001 |
| 6189357 | Apparatus and process for forming vehicle wheel rims An apparatus for spin forming two partial wheel rims including a mandrel having a first portion for spin forming a first partial wheel rim and second portion for spin forming a second partial wheel rim. The first and second portions of the mandrel have di... | 02/20/2001 |
| 6189358 | Two stand tandem for rolling line A tandem with two reversible four-high rolling stands (14a, 14b) for the cold rolling of thin strip to 0.18 mm, advantageously from 0.18 to 1.2 mm, includes at least a first (12a) and a second (12b) drawing reel, mans to heat the rolls and the lubricating... | 02/20/2001 |
| 6189359 | Twisting machine for polygonal cross-section bars A twisting machine for polygonal cross-section bars having an independent jaw chuck fitted on a mandrel and a counteracting support slidable on a prismatic guide, which is firmly connected to the machine and parallel to the mandrel; the jaw chuck includes... | 02/20/2001 |
| 6189360 | Metal forming machine A metal forming machine includes a moveable central pillar, a slidable blade assembly mounted to the pillar for reciprocating movement therewith, and a fixed slide plate mounted to a stationary block secured to the pillar. A moveable or slideable blade ho... | 02/20/2001 |