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...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 |
| 6044654 | Refrigerator To provide a refrigerator capable of uniforming the temperature in the refrigerator by rapidly lowering the temperature at the door side of the refrigerator when the temperature rises by opening and closing a refrigerator door. Therefore, a cold air chann... | 04/04/2000 |
| 6044655 | Vapor compression type refrigerating system A refrigerating system, using CO2 as a refrigerant, for an air conditioner for an automobile. A pressure at the outlet of the heat emitter 2 is controlled to a target value in accordance with the temperature of the refrigerant at the outlet of ... | 04/04/2000 |
| 6044656 | Automotive air conditioner An automotive air conditioner comprises an offset blower for blowing an air, an evaporator is centrally disposed within a dashboard and receives the air from below, and a heater approximately horizontally disposed above the evaporator. The evaporator incl... | 04/04/2000 |
| 6044657 | Outdoor unit of separate type air conditioner An outdoor unit main body is provided with handles optimum for conveying. Above the housing of the outdoor unit main body, a ceiling cover forming a part of the housing box is provided, and handles extended in the outer direction from the sides of the hou... | 04/04/2000 |
| 6044658 | Automatic ice making apparatus for use in a refrigerator An ice removing mechanism includes an ice tray having a fixing projection at one end thereof and a sliding projection at the other end thereof, a rotating guide plate having a fixing groove at one side thereof to guide the fixing projection of the ice tra... | 04/04/2000 |
| 6044659 | Refrigerator having a device for opening/closing cool air discharge ports Disclosed is a refrigerator having a device for opening/closing cool air discharge ports through which cool air is supplied into a cooling compartment. In a cool air duct are installed shutter members for opening/closing the ports. The shutter members are... | 04/04/2000 |
| 6044660 | Apparatus having refrigeration cycle In an apparatus having a refrigeration cycle, the refrigeration cycle is formed by annularly connecting a compressor, a condenser, an expansion device and an evaporator with one another, the apparatus uses propane, isobutane or ethane as a refrigerant, an... | 04/04/2000 |
| 6044661 | Coaxial waveguide applicator for an electromagnetic wave-activated sorption system The present invention is directed to a coaxial waveguide applicator for an electromagnetic wave-activated sorption system which comprises at least one sorber having a metallic tubular housing defining an outer conductor and first and second ends which are... | 04/04/2000 |
| 6044662 | Process for the forming of glass plates and application of the process to obtain glazings with complex shapes A method for bending a sheet of glass heated to a bending temperature in a horizontal furnace through which it is conveyed by a plane conveyor delivering the glass sheet to a bending cell heated to substantially the same temperature as the bending tempera... | 04/04/2000 |
| 6044663 | Impregnated vitreous (glassy) carbon graphite liner and heating element for a fiber optic draw furnace The present invention provides an improvement to a fiber optic draw furnace for drawing an optical fiber from a preform. The fiber optic draw furnace has a heating element having a shape for enclosing and heating the preform, and has a graphite liner havi... | 04/04/2000 |
| 6044664 | Synthetic silica glass manufacturing apparatus An apparatus is provided for synthesizing a silica glass ingot. The appartus includes a stage having a target plate thereover, the target plate being rotatable relative to the stage around a predetermined vertical axis, and a furnace for reacting material... | 04/04/2000 |
| 6044665 | Method for coating an optical fiber A method for coating an optical fiber (1) has the optical fiber (1) exiting the longitudinal direction through a coating nozzle (10) from a volume (11) which is filled with a liquid hardenable coating material (6). The surface of the fiber is spaced from ... | 04/04/2000 |
| 6044666 | Insulating flow and bushing blocks, bushing assemblies, fiber forming apparatus and method for forming fibers An insulating flow block having a plurality of bores extending therethrough to permit the flow of molten fiberizable material through the block, a bushing assembly having a bushing block with one or more bores extending through a peripheral region thereof... | 04/04/2000 |
| 6044667 | Glass melting apparatus and method A system for melting and delivering glass to a work area such as spinners for making fiberglass includes a melter with heaters so arranged that the "hot spot" in the molten glass is located away from the walls and corrosion sensitive parts so that the var... | 04/04/2000 |
| 6044668 | Method and mechanism for closing the toe at the start of the process of making a stocking or sock, in a circular knitting machine The fabric (T) for the toe pouch is first formed by the needles (1) of a first semicircle (A), and then, in order to transfer the initial free edge (T1) of said pouch (T) to the needles of the complementary arc and thus to start the tubular fabric, a regi... | 04/04/2000 |
| 6044669 | Strap lock A variably-sized strap lock includes a strap and a lock body. The strap consists of a free end portion, a hinge portion and a lock portion. A variably-sized loop is formed by inserting the strap into the lock body and pulling the strap through the lock bo... | 04/04/2000 |
| 6044670 | Theft prevention device A theft prevention device is provided for an anhydrous ammonia tank having a feed pipe with an open end. The theft prevention device includes a plug body which is inserted into the open end of the feed pipe. The plug body includes a flexible member which ... | 04/04/2000 |
| 6044671 | Vehicle brake line bleeding aid A vehicle maintenance aid in the form of a vehicle brake line bleeding aid that is securable between a vehicle brake pedal and a fixed structure within the vehicle and which applies pressure to the brake pedal sufficient to force the brake pedal down when... | 04/04/2000 |
| 6044672 | Steering wheel lock removing method A method for removing a steering wheel lock using a device having a main body having a center opening and a pair of supporting arms extending outwardly and downwardly. The device further comprises a central shaft extending through the center opening in th... | 04/04/2000 |
| 6044673 | Locomotive controller lockout device A locomotive locket device for disabling the forward/reverse control system of a locomotive or other powered railway vehicle has an axially-expandable plug portion which may be inserted into a keyhole chamber in a locomotive controller. The plug portion c... | 04/04/2000 |
| 6044674 | Nut enclosure lock A device for preventing access to a nut or bolt fastening a valuable item such as an outboard motor on a boat, a riding lawnmower to a burglar cable, or the like. The device is independent of the nut and bolt, and includes a body that receives the bolt he... | 04/04/2000 |
| 6044675 | Roll bending machine with selective digital control device An automatic roll bending machine for bending metal sheets, sections and the like. The machine includes two or more bending rolls and a driver for causing rotation and/or changing the working positions of the rolls. The driver is operatively connected to ... | 04/04/2000 |
| 6044676 | Method for making hollow workpieces A method for making hollow workpieces such as beverage containers with a circular die in which an aluminum alloy is strip cast whereby the alloy is solidified rapidly without substantial precipitation. Thereafter, the aluminum alloy is formed into a cup w... | 04/04/2000 |
| 6044677 | Method for surface structuring, and a surface-structured workpiece The present invention relates to a method for surface structuring of workpieces, in particular molds for plastics processing, erosion electrodes or the like, in which a structured surface is applied to an unstructured workpiece surface in order to map the... | 04/04/2000 |
| 6044678 | Method and device for manufacturing a tubular hollow body with spaced-apart increased diameter portions A method and a device for manufacturing a tubular hollow body with increased diameter portions which are arranged at a distance from each other using the internal high pressure deformation process. Initially an internal portion of the hollow body is seale... | 04/04/2000 |
| 6044679 | Method for machining metal plate The present invention relates to a method for forming weakenings in a metal plate (8), comprising of: deforming the metal plate to a predetermined depth to form a weakening thinned portion along at least one line; and bending the metal plate along the lin... | 04/04/2000 |
| 6044680 | Machining of sheet without removal of material A method and device for machining a sheet contains a jaw equipped with two plates mounted opposite each other in order to delimit a calibration opening between said plates in which it is possible to vary the spacing between plates. A clamp is provided for... | 04/04/2000 |
| 6044681 | Pressing tool The invention relates to a pressing tool (1) for compressing pipe ends. In order to improve such a tool, a bearing (8) and an abutment (13) are configured on the tool (1).... | 04/04/2000 |
| 6044682 | Wire product manufacturing apparatus A wire product manufacturing apparatus includes a wire guiding section which receives a wire from a wire supply and guides the wire toward a wire feeding device. The wire feeding device feeds the wire into a wire rotating section comprising a releasable w... | 04/04/2000 |
| 6044683 | Apparatus and method for forming joints in tubing The present invention relates to an effective method of cold-forming a tee in tubing. The method includes the steps of forming a quadrilobal pilot hole in the tubing, securing the tubing, and forcing a rounded member from the interior of the tubing throug... | 04/04/2000 |
| 6044684 | Forging apparatus for inner race of constant velocity universal joint A plurality of grooves, which are defined in a reinforcing ring, comprise respective end walls which are formed as inclined surfaces. The grooves further comprise walls on which engaging projections are disposed in parallel to the inclined surfaces respec... | 04/04/2000 |
| 6044685 | Closed-die forging process and rotationally incremental forging press A forging press includes a die set having a stationary die, a movable die in facing-but-spaced-apart relation to the stationary die along a press axis and defining a workpiece volume therebetween, and an exterior constraint extending circumferentially aro... | 04/04/2000 |
| 6044686 | Compression tool for compression molding die A pressing device comprises a press ring having at least three pivotally interconnected compression jaws. The press ring has a first open configuration, and a second closed configuration. A coupling element extends from each of two jaws for operable conne... | 04/04/2000 |
| 6044687 | Three-dimensional simple flexible mould for bending pipes A three-dimensional simple flexible mould for bending pipes comprised of a plurality of arciform or half-circled spring elements, pins and chucking rings for being a protecting mould in a three-dimensional pipe bending process. The two ends of every sprin... | 04/04/2000 |
| 6044688 | Device for ejecting a metered quantity of vaporized fluid A device for delivering a metered quantity of vaporized liquid material to the surrounding atmosphere is disclosed. The device includes a reservoir for storing the liquid material, and a conduit in flow communication with the reservoir, with a portion of ... | 04/04/2000 |
| 6044689 | Apparatus for sensing low concentration NOx, chamber used for apparatus for sensing low concentration NOx; gas sensor element and method of manufacturing the same; and ammonia removing apparatus and NOx sensor utilizing this apparatus The disclosed apparatus for sensing low concentration NOx in a measurement gas especially in the atmosphere has at least a sensor element made of an oxide arranged in a flow path of the measurement gas, the resistance of the sensor element varying in resp... | 04/04/2000 |
| 6044690 | Shearable multi-gage blowout preventer test tool and method A shearable multi-gage blowout preventer test tool for testing different size ram and annular BOP's in one trip has an inner tube and an outer test tube assembly connected in telescoping relation. The inner tube is connected to a bottom sub and a release ... | 04/04/2000 |
| 6044691 | Blood tubing set integrity tests for extracorporeal circuits Several tests are described for verifying the integrity of the extracorporeal circuit of a medical instrument, such as a dialysis machine. One test verifies the condition of the blood tubing set. Another test verifies that the clamps in the arterial and v... | 04/04/2000 |
| 6044692 | Ultrasonic method of testing a plate heat exchanger for leakage A vessel such as a dairy pasteuriser having a path B for product and a separate path A for coolant in intimate relationship is tested for leaks by circulating a donor fluid under pressure in path A whilst a recipient fluid such as clean tap water is circu... | 04/04/2000 |
| 6044693 | Method and apparatus for unrolling prophylactic devices A plurality of rolled-up prophylactic devices are passed through a plurality of pairs of unroller tubes with a randomizer vessel being coupled between each pair of unroller tubes, the randomizer vessels functioning to randomly reorient a portion of rolled... | 04/04/2000 |
