Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 5400346 | Method for diagnosing conditions in a signal line A system is disclosed for intelligently providing suggestions for solving problems encountered during installation and testing of complex electronic circuitry. A plurality of first outputs provide indications of non-selectable conditions of the system, su... | 03/21/1995 |
| 5386574 | Temperature compensated extended range computer communications link A temperature compensated video transmission system including a D.C.-video frequency amplifier for supplying a computer monitor wherein the operating bias for two opposite polarity type transistors are directly coupled collector-to-base, and bias to this ... | 01/31/1995 |
| 5353409 | Computer-monitor extended range communications link This invention relates to circuitry for extending TTL signals from a computer to a remotely located monitor and keyboard and which uses a first signal conditioning circuit proximate the computer to generally reduce amplitude of the video signals and bias ... | 10/04/1994 |
| 5334838 | Radiation sensor A radiation-sensing assembly adapted for sensing radiation emitted from a source of radiation which may be non-coal layers (shale and other materials) in a coal mine tunnel. The sensor assembly incudes a housing forming an enclosure for a radiation-sensin... | 08/02/1994 |
| 5323690 | Fluid actuator assembly for imparting rotational movement to a boom A linear movable apparatus for imparting rotational movement to a turntable is provided. The turntable is secured to a rotatably mounted shaft having a ring gear thereon for meshed engagement with gear teeth provided on a piston rod which extends between ... | 06/28/1994 |
| 5323298 | Integral enclosure and shield for EMI radiating circuitry An enclosure is constructed of electromagnetic radiation shielding material for housing and supporting circuitry that emits electromagnetic interference. Symmetrical top and bottom covers are fabricated of a generally U-shaped configuration, with a downwa... | 06/21/1994 |
| 5322004 | Telescoping fluid actuator A telescoping fluid actuator assembly including a housing having a plurality of concentrically disposed fluid actuators disposed therein. Each fluid actuator includes a cylindrical housing enclosing a piston and piston rod. Fluid passage means is provided... | 06/21/1994 |
| 5323420 | Circuitry for regenerating digital signals in extended distance communications systems A regeneration circuit (16) is disclosed for regenerating noisy, received digital signals in a high impedance signal line (22). A buffer amplifier (30) is provided with a feedback resistor (36), with the feedback resistor and input to the buffer amplifier... | 06/21/1994 |
| 5309817 | Linear brake for fluid actuator A linear braking mechanism for fluid actuators defined by a cylinder enclosing a cavity having a piston/piston rod assembly reciprocally mounted therein. The braking mechanism includes a spring biased body which is disposed for engaging and retarding the ... | 05/10/1994 |
| 5301918 | Form assembly for construction of concrete culverts A system for constructing concrete culverts is disclosed wherein reusable outer form and rebar supporting assemblies are set in place in an excavation and are used to form outer portions of the floor and outer walls of the culvert. Forming the outer walls... | 04/12/1994 |
| 5298337 | Perforated plates for cryogenic regenerators and method of fabrication Perforated plates (10) having very small holes (14) with a uniform diameter throughout the plate thickness are prepared by a "wire drawing" process in which a billet of sacrificial metal is disposed in an extrusion can of the plate metal, and the can is e... | 03/29/1994 |
| 5295188 | Public key encryption and decryption circuitry and method A high-speed public key cryptosystem is constructed for the encryption and decryption of digital data blocks, the creation and verification of digital signatures, and the creation of verifiable random number sequences. The encryption and decryption techni... | 03/15/1994 |
| 5282267 | Data entry and error embedding system A data entry and error embedding system in which, first, a document is bitmapped and recorded in a first memory. Then, it is displayed, and portions of it to be replicated by data entry are underlayed by a window, into which window replicated data is ente... | 01/25/1994 |
| 5276404 | Constant current video amplifier This invention is a constant current, noninverting, voltage amplifier powered by a single polarity of electrical power with respect to a ground potential. In a preferred embodiment, the amplifier consists essentially of a single transistor having a refere... | 01/04/1994 |
| 5273214 | Portable cooling device A cooling apparatus is provided having a hollow, tubular base, with a tubular member extending upwardly therefrom. A fogging nozzle is mounted at an upper end of said tubular member and receives pressurized water and provides a fine fog of cooling water d... | 12/28/1993 |
| 5267375 | Heater clamp with conical force application elements A clamp for tightening heating coils around a cylindrical object being heated has a split tubular housing with straps extending from each housing edge and forming loops pulled together by forces exerted from a pair of wedging elements with conical surface... | 12/07/1993 |
| 5268676 | Computer-monitor extended range communications link A communications link up to about 300 feet for use between a computer and display unit receives analog R, G, and B signals from the computer and applies them to discrete current amplifiers that modulate signal current applied to discrete conductors of a 3... | 12/07/1993 |
| 5263171 | Device for interfacing two keyboards to one computer and for automatically connecting the active keyboard to the computer This invention pertains to circuitry for automatically coupling up to four keyboards to a single keyboard port of a computer. Switching is accomplished by sensing a clock pulse appearing on one of the keyboard clock pulse lines responsive to a keystroke a... | 11/16/1993 |
| 5259676 | Roller bearing spindle and hub assembly A method is provided for conversion of a permanently assembled ball bearing hub and spindle having ball bearing races constructed directly in the hub and spindle to a serviceable tapered roller bearing hub and spindle assembly. Additionally, the tapered b... | 11/09/1993 |
| 5257390 | Extended range computer communications link This invention is an extended range communications link having a first signal conditioning network located near and coupled to a computer. The network conditions keyboard clock, keyboard data, logic ground, mouse clock, mouse data, R, G, and B analog vide... | 10/26/1993 |
| 5252203 | Device for removing water from fuel tanks A device for removing water from an aqueous phase at the bottom of a hydrocarbon fuel tank has an elongated tubular frame with open areas defined by longitudinal members and circumferential ribs. A pad of cotton carrying a coating of highly water-absorben... | 10/12/1993 |
| 5228751 | Control system for longwall shearer Apparatus for measuring the degrees of roll of the body of a longwall shearing machine and providing signals proportional to the roll angle which are used to control drum cutting positions for controlling roof and floor horizons of a coal tunnel.... | 07/20/1993 |
| 5227666 | Power sharing switching circuit A switching circuitry for coupling the power output of one of a plurality of power supplies to a keyboard. In this disclosure, a switching transistor of the circuit is coupled to switch power from a power supply output to a common point to which a plurali... | 07/13/1993 |
| 5222600 | Autoclave pouch A receptacle for containing medical instruments for sterilization is constructed having first and second broad sides connected along side and bottom edges. These sides are in turn constructed of an outer layer of flexible, durable fabric material, an inte... | 06/29/1993 |
| 5222228 | Character and signal generator for detecting keyboard disconnected condition generated by an interrupted booting process and generating signal indicating that keyboard is now coupled thereto A signal generator for generating an F1 keyboard keystroke and a clock signal responsive to expiration of a time delay sufficient for a computer to which the generator is coupled to partially complete a "boot" process to a point where the computer has det... | 06/22/1993 |
| 5220385 | Process cartridge for electrographic apparatus A process cartridge is provided for use in an electrographic apparatus having control means therein which is actuable responsive to insertion of the process cartridge in the apparatus to control operation of selected elements in the apparatus. The process... | 06/15/1993 |
| 5208985 | Cue tip conditioning device and method A cue tip conditioning device and method is disclosed which includes a circular array of pins surrounded by a casing which may be manually held to tap the sharpened ends of the needles against the surface of a cue tip. A beveled surface allows the rounded... | 05/11/1993 |
| 5201081 | Shower curtain support having combined anti billowing and handle means A slidably mounted curtain support for supporting a curtain, having an intermediate portion and a pair of spaced end portions at the end edge portions thereof in overlapping relation with at least one end wall of a pair of spaced end walls, which, with a ... | 04/13/1993 |
| 5193425 | Chip impalement spears for rotary cutters Chip-impalement spears for rotary cutters are provided in a rectangular shape with a single sharp bevelled edge along the top of the spears and adapted to be placed parallel to a roller of the rotary cutter. The spears are embedded in one roller and arran... | 03/16/1993 |
| 5191737 | Hollow grinding fixture A fixture for securely holding a member such as a knife against a grinding element such as a grinding wheel during a grinding operation. The fixture includes a blank (knife) support assembly rigidly secured to the upper plate which is slidably supported o... | 03/09/1993 |
| 5193200 | Computer-monitor extended range communications link for attenuating and subsequently restoring high frequency components of transmitted video signals A communications extension link for use between a computer and display unit (K.D.U.) has at the computer site a first interface circuit connected to it and adjacent to the keyboard and display unit a second interface circuit connected to it. The two inter... | 03/09/1993 |
| 5191264 | Lighting system A lighting system for discotheques includes a motor driven lamp unit which produces a variable direction light beam. A control device is provided remote from the lamp for controlling its operation, and in order to provide a distinctive visual effect, a co... | 03/02/1993 |
| 5184432 | Tool for sharpening tungsten electrodes A tool for holding tungsten electrodes for sharpening by an abrasive wheel has a generally cylindrical body with an axial bore at each end for receiving an electrode. The bores have different diameters for use with two sizes of electrodes. The bore is siz... | 02/09/1993 |
| 5183976 | Adjustable sound attenuating device An adjustable sound attenuating device comprised of an elongated outer main shell of a predetermined diameter, with an inlet coupling and an outlet coupling. The device has located within the shell singular or multiple independent baffle components compri... | 02/02/1993 |
| 5169697 | Seaming tape for composite chemical barrier fabrics and method of forming bonded seams Seaming tape made up of a composite multilayer material of specified composition is used to form bonded seams between pieces of composite chemical barrier fabrics. The tape includes a base multilayer material made up of a stacked, laminated array includin... | 12/08/1992 |
| 5167182 | Modular fluid actuator A fluid actuator assembly comprising a plurality of modules which are secured in serial relation to form the body of the fluid actuator. A replaceable liner, common to each of the modules, extends through the bores of the modules which make up the body. M... | 12/01/1992 |
| 5156075 | Chip removal apparatus for rotary cutters of web printing presses Apparatus for removing and disposing of scrap paper chips impaled on a roller rotating away from the cutting region of a rotary cutter has a pneumatic baffle plate located a distance of 3/8 to 11/2 inches away from the roller, defining a narrow flow chann... | 10/20/1992 |
| 5154518 | Ring structure for bearing chocking assembly A bearing chocking assembly for mill rolls includes an inner ring engageable with the bearing structure and having on its outer face axially inclined wedge-shaped cam surfaces. These surfaces are arranged to come into contact with similar mating surfaces ... | 10/13/1992 |
| 5154813 | Protective coating of stub ends in anode assemblies The operating lifetime of mild steel stub ends in anode electrode assemblies for aluminum reduction cells is increased by providing a coating of stainless steel or other corrosion-resistant alloy on the stub end extending upward from its juncture with a c... | 10/13/1992 |
| 5141260 | Force-transferring double-containment plastic pipe assembly A double-containment thermoplastic pipe assembly provides for transfer of differential thermal expansion forces to rigid external supports. The assembly includes a flanged restraint coupling having an inner carrier pipe portion, an outer containment pipe ... | 08/25/1992 |
