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| Number | Title | Issue Date |
| 4443578 | Cold applied joint sealant A cold applied joint sealant usable for both portland cement and asphaltic concrete pavements, which comprises an asphalt/urethane formulation resulting from the mixture of a liquid butadiene polymer, containing predominantly primary terminal hydroxyl gro... | 04/17/1984 |
| 4443147 | Turret stacker A transporting device for lifting and relocating material from one position to another. In one embodiment, the transporting device comprises a stationary central support pedestal and a rotatable turret situated at the top of the pedestal. The turret has a... | 04/17/1984 |
| 4441159 | Digital adder circuit for binary-coded numbers of radix other than a power of two A digital adder circuit for binary-coded-decimal operation, comprising a set of multiplexers (11) which are conditioned with a pattern of input bits causing them to form an intermediate result (IR) equal to the sum of the two operands (A0-A3, B0-B3) plus ... | 04/03/1984 |
| 4439798 | Referencing device for digital data recorders An improved referencing device for identifying for future reference a portion of a data record as it is being recorded for use in combination with a shorthand machine generating electrical output signals corresponding to the keys depressed, a recording me... | 03/27/1984 |
| 4439563 | Water based concrete cure A concrete cure is provided which is totally water based and completely void of solvents. A moisture impermeable film is attained when the cure is applied to fresh concrete. The cure forms a barrier over the concrete allowing it to retain over 95% of the ... | 03/27/1984 |
| 4438924 | Game ball A spheroidal projectile with an aerodynamically roughened surface in the nature of intersecting grooves which give a high density of roughness elements. The grooves range in size between grooves of about 0.01 inch wide and deep, spaced about 1/32 of an in... | 03/27/1984 |
| 4435705 | Data transmission systems A communicating network in which encoder/decoders are joined in a ring by transmission links. Data passes over the links as a carrier having two cycles per bit period. The amplitude of the carrier in any bit period is non-zero and represents the value of ... | 03/06/1984 |
| 4434321 | Multilayer printed circuit boards A method or apparatus for facilitating the construction of prototype electronic circuits using printed circuit boards, by providing a printed circuit board 1, with a plurality of through connection bores 15 arranged in rows and columns, and with a conduct... | 02/28/1984 |
| 4424945 | Parafoil A parafoil for supporting a flying machine, which parafoil has a forwardly extending central section open at the front to scoop in air during flight, and wings attached to the rear of the central section and which receive air into the interior thereof eit... | 01/10/1984 |
| 4423551 | Pizza cutting and serving utensil An improved utensil for cutting pizza or the like is disclosed having a sharpened cutting wheel and a planar blade with a sharpened edge, the edges of both the wheel and blade are aligned so that the cutting paths traversed by each coincide. The pizza cru... | 01/03/1984 |
| 4423541 | Rolling mill roll A rolling mill roll having adjustable axial compliance is formed by a sleeve in the bore of which is located a stiffening arbor. The arbor is an interference fit with the bore of the sleeve over a limited central part of the roll but on each side of that ... | 01/03/1984 |
| 4421427 | Shorthand machine having electric platen advancement A shorthand machine including an electric drive system to advance the platen. In accordance with the invention, the platen can be advanced in a fully mechanical, conventional mode, fully electric mode, or by a combination of electric and mechanical drives... | 12/20/1983 |
| 4419638 | Negative resistance element A negative resistance element having two terminals (11, 12;) a resistor (R1-4) connected in a path between the terminals, and a current mirror arrangement (T1, T2; T3, T4;) responsive to a current flowing into the first terminal (11) to produce a current ... | 12/06/1983 |
| 4416858 | Contactor A continuous contactor comprises a rotary tubular rotor through which the streams to be contacted flow. The rotor has an inner wall which is substantially cylindrical and an outer wall spaced from the inner wall. The rotor is divided internally into a num... | 11/22/1983 |
| 4416171 | Tab-top can opener A tab-top can opener is provided which facilitates opening can tops of both the pull-off and stay-on type. The opener comprises a slotted body portion integrally formed with a handle at one end and a chisel-like starter edge at an opposite edge. A transve... | 11/22/1983 |
| 4416137 | Roll construction A composite roll for a rolling mill is constituted by a sleeve and an axially adjustable arbor therewithin. The ends of the sleeve are closed by end members, one of which has an axial passage with a diameter smaller than the bore diameter of the sleeve. A... | 11/22/1983 |
| 4415973 | Array processor with stand-by for replacing failed section An array processor consisting of a plurality of sections (S1, S2-S9), with switching means (24,26,30,32) selectively operable to by-pass any one of the sections so as to effectively remove it from the system. One of the sections normally acts as a stand-b... | 11/15/1983 |
| 4413227 | Negative resistance element A voltage controlled negative resistance with two terminals (12,13; 15,16; 19,20) and first and second current paths connected between the terminals. A current mirror arrangement (T2, T3; T5, T6, T7, T8; T9, T10) so controls the current in the second path... | 11/01/1983 |
| 4410200 | Ski binding with step frame and retraction installation A ski binding having a sole plate which is mounted on a ski and including a step frame which can swivel about an axis on the front side of the sole plate. The sole plate is connected in a releasable manner to the ski so that if a skier falls, he is releas... | 10/18/1983 |
| 4410076 | Dust suppressor A dust suppressor for reducing or substantially eliminating dust in the loading of a particulate commodity, operating on a "dead box" principle but without the use of power operated valves. The dust suppressor normally operates on a three-stage principle,... | 10/18/1983 |
| 4409697 | Beehive rack A rack for a beehive for handling a brood chamber and a honey chamber. The rack includes a frame carrying the brood chamber below a queen excluder and the honey chamber above the queen excluder. The queen excluder is mounted on the frame to support the ho... | 10/18/1983 |
| 4408978 | Advancement apparatus for concrete screed An apparatus for automatically advancing a concrete screed as the screed tamps and levels concrete. The apparatus includes cable reeling means attached to either end of the concrete screed for winding a drive cable. The drive cable is adapted for attachme... | 10/11/1983 |
| 4407151 | Rolling mill A rolling mill having at least a pair of work rolls (12, 13) each supported by a back-up roll (14, 15) has at least one roll (16) of hollow construction to give the mill compliance. The hollow roll (16) may contain an arbor (20) to give local stiffness to... | 10/04/1983 |
| 4407055 | Method of making surface drainage culvert A surface drainage culvert of the type comprising a pipe section which is cut longitudinally forming an aperture along the upper surface of the pipe and which has an upstanding grate assembly lodged within the aperture. The aperture consists of a series o... | 10/04/1983 |
| 4406144 | Rolling mill stand having axially adjustable intermediate rolls A rolling mill has a pair of work rolls (12, 13), between which the work (14) is rolled and which are supported by respective back-up rolls (16, 15). Between one work roll (12) and its back-up roll (16) there are a pair of intermediate rolls (17, 18) whic... | 09/27/1983 |
| 4405360 | Controlled release of herbicide compounds utilizing a thermoplastic matrix A composition and method for the controlled release of compounds from a plastic dispenser, usually a thermoplastic, generally in association with a porosigen in contact with water, for example, an aquatic environment or soil mixture. Thermoplastic dispens... | 09/20/1983 |
| 4404881 | Needle and syringe destructor A needle and syringe destructor is disclosed having particular suitability for the destruction of hypodermic syringe needles, of the single-use variety, immediately after use. The needle, and a portion of the syringe barrel, may be simultaneously severed ... | 09/20/1983 |
| 4400374 | Controlled release of compounds utilizing a plastic matrix A composition and method for the controlled release of compounds from a plastic dispenser, usually a thermoplastic, generally in association with a porosigen in contact with water, for example, an aquatic environment or soil moisture. Thermoplastic dispen... | 08/23/1983 |
| 4396498 | Treatment of heterogeneous liquid materials The invention relates to a continuous process for treatment of feed in the form of a heavy hydrocarbon-water dispersion or dispersions. The feed is diluted with a hydrocarbon solvent and contacted in a contactor with a water stream. A product stream conta... | 08/02/1983 |
| 4396304 | Print head and drive circuit Wire printing apparatus includes a print head having at least one print wire and associated actuating mechanism and drive circuit. In the drive circuit a capacitor is charged to a predetermined voltage through an inductance and then discharged through the... | 08/02/1983 |
| 4395253 | Method of making corrugated packages A machine for forming a corrugated package from sheet material including a rotatable corrugation head having a fluted periphery and a front face; corrugating means and sealing means movable into association with the head for corrugating an inner sheet mat... | 07/26/1983 |
| 4395194 | Method of handling harvested material A method of handling material which has been harvested comprising the steps of placing the material on a conveyor arranged at an oblique angle to a direction of motion of a trailer and a harvester moving at differential speeds and simultaneously reciproca... | 07/26/1983 |
| 4395176 | Apparatus for handling harvested material Apparatus for transferring harvested material from a harvester into a trailer moving alongside the harvester at a slightly faster rate, for which purpose a conveyor inclined at an oblique angle to the direction of motion of the vehicles is loaded with har... | 07/26/1983 |
| 4394873 | Fluid valve with compressible channel A fluid valve controls the delivery of fluid through a passageway by employing a novel valve construction in which a channel within the passageway is adjusted both in size and configuration. A resilient, flexible valve element defines the channel, and the... | 07/26/1983 |
| 4393371 | Analogue to digital signal conversion and storage system In an analogue to digital converter, the analogue signal applied thereto is sampled at successive time intervals and at each sample a digital signal is produced and the time interval between successive samples is not necessarily constant but is dependent ... | 07/12/1983 |
| 4392508 | Proportional mixing system with water motor drive A proportional mixing system with water motor drive is provided for mixing water with one or more chemicals in selected proportions. The system is completely water driven and automatically meters out a set amount of water for mixing in desired proportion ... | 07/12/1983 |
| 4392208 | Data processing system and diagnostic unit Data processing system having a main processor system and a diagnostic unit. The main processor system may transmit messages selected by itself to the diagnostic unit. It does so by writing information to a predetermined location in a writable microprogra... | 07/05/1983 |
| 4389979 | Method and apparatus for the operation of a boiler installation with stoker firing A method and apparatus for the operation of a stoker-fired boiler having a boiler arranged coaxially adjacent to a stoker chamber. The cross-sectional area of the connection between the stoker and the boiler is constricted, preferably in the range of one-... | 06/28/1983 |
| 4389682 | Magnetic recording systems A digital magnetic recording system in which information is recorded as transitions between regions magnetized in opposite senses. In the read channel the output of the read head is applied to modulate a carrier, passed through a surface acoustic wave tra... | 06/21/1983 |
| 4384702 | Mold insert A removable insert for a mold for impressing indicia on each molded product formed in the mold. The insert includes a plug body, a bore through the plug body, and a plug situated in the bore and having a mold engaging surface for impressing an article for... | 05/24/1983 |
