Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Number | Title | Issue Date |
| 4694584 | Reduced volume digital inclinometer A high resolution, digital inclinometer having a full 360° linear range with accuracy which is independent of the angle of inclination. The linearity of the inclinometer is essentially flat throughout its range and greatly exceeds analog equivalents. A m... | 09/22/1987 |
| 4686475 | Passive geophysical prospection system based upon the detection of the vertical electric field component of telluric currents and method therefor An improved passive telluric current system for geophysical prospecting having a sensor responsive to the electric field component of the telluric current for producing a capacitive charge, a tuner for deconvoluting the sensed electric field telluric sign... | 08/11/1987 |
| 4655646 | Multitiered, rigid tieback, essentially vertical retaining wall system A retaining wall system which provides an essentially a vertical wall without vertically aligned protrusions. The multitiered retaining wall system uses a plurality of tieback elements which act independently of each other to prevent the transference of f... | 04/07/1987 |
| 4649374 | Electrostatic system monitor and method therefor An electrostatic system monitor and method for monitoring the operation of static control equipment such as conductive workbench and floor mats, conductive wrist straps, and the integrity of ground connections and soldering irons and to activate indicator... | 03/10/1987 |
| 4648298 | In-line shearing device A shearing device which uses an in-line design wherein bearings are aligned with the moving blade so that lever arm forces are not produced between the movable blade and a fixed blade. This provides for highly accurate and clean cuts of printed circuit bo... | 03/10/1987 |
| 4635555 | Shot pattern controlling device An improved shot compressor for use in a shotgun cartridge containing shot. The improved compressor has a plurality of equally spaced fins disposed around and integral with a centrally disposed collapsing means for controlling the pattern of opening shot ... | 01/13/1987 |
| 4630051 | Imaging doppler interferometer A system for simultaneously locating a plurality of targets and distinguishing the targets from noise which utilizes phase detector techniques to generate complex voltage signals and obtain phase information. Spectral analysis is performed on the complex ... | 12/16/1986 |
| 4626829 | Data compression using run length encoding and statistical encoding A compression device which uses both run length encoding and statistical encoding. The run length encoding scheme uses a flag byte symbol which is disposed between a character signal and a run length symbol. The statistical encoding process uses multiple ... | 12/02/1986 |
| 4614899 | Voltage regulator for pulsed voltage power supplies A voltage regulator for flyback-type high voltage supplies having a supplementary energy storage transformer with its secondary interconnected in series with the primary of the conventional flyback transformer, a control circuit for sensing (a) the genera... | 09/30/1986 |
| 4606074 | Automatic voltage line loss compensation control for an antenna receiver An automatic control for compensating for the voltage drop between an antenna receiver and a remotely interconnected down converter wherein an operational amplifier senses the voltage drop due to the interconnecting cables, amplifies that voltage, and add... | 08/12/1986 |
| 4583170 | Portable oilfield fluid management system and method A portable oilfield fluid management system and method provides display information concerning fluid status and includes a plurality of local sensing units which can be selectively attached in any order to a plurality of different storage tanks having dif... | 04/15/1986 |
| 4568945 | Satellite dish antenna apparatus A satellite dish antenna having parabolic-shaped support ribs firmly engaging the sides of adjacent screen-mesh reflected petals along the entire longitudinal length of each petal. Each support rib having an upper reflective surface lying in the same plan... | 02/04/1986 |
| 4568868 | Remote solar powered light An improved controller for an automatic seasonal adjusting solar powered light having a rechargeable battery, a solar array for charging the battery, and a lamp. A detector is connected to the solar array for activating a first timer, upon sunrise of a gi... | 02/04/1986 |
| 4551719 | Oil field lease management and security system and method therefor The oil field lease management and security system and method of the present invention for monitoring oil field equipment and for communicating with authorized operators. The system of the present invention includes a plurality of transducers connected to... | 11/05/1985 |
| 4534557 | Reaction time and applied force feedback A reaction time and applied force feedback training system for sports includes at least one sport training device, a stimulus indicator located near and associated with the sport training device for emanating a plurality of ready signals at random time in... | 08/13/1985 |
| 4488250 | Hand-held calculator for performing calculations in feet, inches and fractions A portable hand-held electronic calculator for performing feet, inch, and fraction calculations and for displaying numerical results in feet, inches, and fractions of inches. Values for feet, inches, and fractions of inches can be entered directly without... | 12/11/1984 |
| 4487065 | Storage tank level monitoring apparatus and method therefor A storage tank level monitoring apparatus and method for determining fluid levels in a storage tank. The apparatus of the present invention includes a magnet coated with rubber for holding a pivotally mounted housing to the interior of the storage tank an... | 12/11/1984 |
| 4431185 | Portable exercise case containing barbells or the like A portable exercise case having a weight provided with a hole therethrough, a receptacle for containing the weight, the receptacle having a container having an open section and a lid adapted to be removably attached over the open section of the container,... | 02/14/1984 |
| 4407292 | Procedure and apparatus for noncontacting measurement of subcutaneous temperature distributions A method and apparatus for noncontacting measurement and imaging of subcutaneous temperature distributions for the early detection of tumors. The (black-body) thermal electromagnetic radiation emitted by hyperthermic tumorous tissues is collected, focusse... | 10/04/1983 |
| 4406656 | Venous catheter having collapsible multi-lumens A venous catheter having a central flexible lumen with a formed fluid passageway therein and a plurality of collapsible lumens mounted around the periphery of the central flexible lumen also having formed fluid passageways therein. The central flexible lu... | 09/27/1983 |
| 4403297 | Process control system prover An automated process control prover system for (1) performing tasks, including tests, at the circuit loop termination on a termination base located between interconnected control room instrumentation and field equipment, (2) for performing tasks, includin... | 09/06/1983 |
| 4398201 | Antenna director and method therefor The improved director (10) of the present invention provides an apparatus and method for increasing the directive gain of an antenna (30), and more particular, for a director in the high VHF band region while reinforcing the low VHF band. The director (10... | 08/09/1983 |
| 4385470 | Insulated pocket window An insulated pocket window having a sliding insulating panel for completely closing off a viewing window. The sliding insulating panel is hidden from view between two stationary insulated panels, in one position, and in a second position, the insulating p... | 05/31/1983 |
| 4356890 | Method for installing an elevator system A method for installing an elevator system on a wall of an elevated structure having a plurality of rail mast sections and an elevator car. The method includes the steps of raising a first rail mast section upwardly off of the ground by a distance substan... | 11/02/1982 |
| 4355605 | Motor brake control method A motor brake control system for use on a motor having a motor brake retarder and a throttle fuel control is designed to respond to manual selection for sequentially retarding the selected cylinders in the motor. A transducer for sensing the speed of the ... | 10/26/1982 |
| 4353524 | Fluid control gate An improved fluid control gate for selective insertion through a wall such as a flexible irrigation tube to a pressurized fluid medium such as water under gravity feed. The fluid control gate having a hollow extender mounted through and to the wall for th... | 10/12/1982 |
| 4339009 | Button assembly for rotary rock cutters A button assembly for a rotary rock cutter utilized in the penetration of rock strata, especially subterranean strata, having a highly abrasion resistant insert, such as tungsten carbide. The insert is supported by a button having a high abrasion resistan... | 07/13/1982 |
| 4335704 | Draft air secondary combustion apparatus for stoves A draft air combustion apparatus for directing substantially all of the draft air provided into a stove pipe for a stove upwardly into the stove pipe, and permitting a small amount of the draft air to flow downwardly into the stove to provide air to an ar... | 06/22/1982 |
| 4316618 | Non-exposed ski binding A symmetrical non-exposed ski binding operative to engage the ball and tibial axis areas of a ski boot to a ski. The ski binding includes two downwardly protruding spheres operatively connected to the sole of a ski boot in the ball and tibial axis areas t... | 02/23/1982 |
| 4308540 | Compact television antenna system A highly compact and lightweight 82 channel all band VHF-UHF television antenna having three antenna elements wherein each element is the identical physical length and each element includes two half sections. Each antenna element is separated a predetermi... | 12/29/1981 |
| 4305353 | Motor brake control system for controlling motor runaway A motor brake control system for use on a motor having a motor brake retarder and a throttle fuel control is designed to respond to manual selection for sequentially retarding the selected cylinders in the motor. A transducer for sensing the speed of the ... | 12/15/1981 |
| 4295143 | Low wind load modified farabolic antenna A modified parabolic antenna exhibiting low wind load characteristics having a collapsible reflector boom and a plurality of reflector elements mounted thereon. The collapsible boom includes two symmetrical parabolically shaped half sections. A first and ... | 10/13/1981 |
| 4293861 | Compact television antenna system A highly compact and lightweight 82 channel all banded VHF-UHF television antenna having three antenna elements wherein each element is the identical physical length and each element includes two half sections. Each antenna element is separated a predeter... | 10/06/1981 |
| 4275741 | Procedure for noncontacting measurement of subcutaneous temperature distributions A method for noncontacting measurement and imaging of subcutaneous temperature distributions for the early detection of tumors. The (black-body) thermal electromagnetic radiation emitted by hyperthermic tumorous tissues is collected, focussed and detected... | 06/30/1981 |
| 4263736 | Modular display system A modular display system having a plurality of display modules, a plurality of display signs, a plurality of insertable digit panels, a plurality of insertable spacer panels, and one or a plurality of insertable colon panels. The display system is mounted... | 04/28/1981 |
| 4262605 | Nestable unitized shelving system A shelving system having a first series of nestable shelving units and a second series of nestable shelving units. All units in the first series are nestable one within the other and all units in the second series are nestable one within the other. When b... | 04/21/1981 |
| 4261148 | Apparatus for holding boards in the making of furniture An apparatus for holding a first rectangular board in a predetermined orientation to a second rectangular board. A holding apparatus is disclosed comprising a corner member having a first flat edge substantially corresponding in dimension to the width and... | 04/14/1981 |
