Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 4558249 | Stretched piezopolymer transducer with unsupported areas In the disclosed transducer, a frame supports the edges of a piezopolymer sheet coated on both faces with electrodes, while a holding structure supports an area but leaves a larger area of the central portion of the sheet unsupported. According to preferr... | 12/10/1985 |
| 4548411 | Puzzle toy A puzzle comprising a casing in which fixed seats are provided for a like number of bodies. Each of the bodies is movable within its seat by being turned about two of its axes. The bodies are shaped like cubes with rounded edges and corners and with reces... | 10/22/1985 |
| 4537810 | Metallic endless press band having an embossed surface for use in double band presses in the manufacture of laminates A metallic endless press band with an embossed engraving thereon for use in double band presses for the manufacture of laminates, such as panels, foils, films and the like having textured surfaces wherein a lengthwise and crosswise welding of rolled or el... | 08/27/1985 |
| 4531983 | Method of deep hardening of workpieces A method for deep hardening steel workpieces which are subject to high surface pressures by first heating the workpiece and then quenching the thus heated workpiece to cool to a range just above the martensite stage, the temperature is held in this range ... | 07/30/1985 |
| 4527723 | Chain bridle equipment for keeping metal strip tensions at a constant level Strip processing lines require tension or back tension to be applied to the strip, as the case may be. These requirements are best met by the proposed chain bridle. The recoiling of adjacent slit strips on a tension reel will result in varying rewinding s... | 07/09/1985 |
| 4527021 | Keyboard switch assembly A key-board switching unit for electronic instruments is constructed with a printed circuit board provided with a plural number of pairs of fixed contact points on the surface and an insulating covering sheet member mounted on or above the printed circuit... | 07/02/1985 |
| 4526737 | Method of making molded articles In a method of making molded articles, such as particleboard from mixtures of wood chips or like particles, bonding agents and reaction accelerators, initially the particles are divided into two portions A and B. Portion A is wetted with bonding agents an... | 07/02/1985 |
| 4526454 | Camera having solid state diaphragm device A solid state diaphragm device is constructed by the use of an electrochromie material. Prior to an initiation of a shutter operation, the above-described solid state diaphragm device is supplied with a predetermined amount of driving current flowing in a... | 07/02/1985 |
| 4526402 | Ski guard A ski guard is formed of an elastically tiltable stirrup made of a plastics material with a holding member formed as a part of the stirrup. The holding member maintains the stirrup member in the upright position on a ski by securing its support surface in... | 07/02/1985 |
| 4526274 | Feeding teat, opening instrument and holder A feeding teat comprises a tip portion and a lower opening for connection to a container and is formed with an external recess, which is substantially wedge-shaped in cross-section and closed from the interior of the teat and constitutes a guide for an op... | 07/02/1985 |
| 4526260 | Torque transmission device A torque transmission device particularly for a clutch disc unit to be used in a clutch assembly of an internal combustion engine comprises a hub member rotatable about an axis and a torque input member mounted on the hub member for angular movement with ... | 07/02/1985 |
| 4526070 | Pliers-type tool In a pliers-type tool having a stationary first handle and a second handle pivotally movable relative to the first handle, a slidable jaw carrier is movable along a rectilinear guiding track in a body member due to the pivotal movement of the second handl... | 07/02/1985 |
| 4525985 | Apparatus for automatically packaging articles Discrete articles moving on a conveyor belt are first laterally aligned in rows extending transversely to direction of movement of the conveyor belt and then engaged in compartments arranged in rows extending across the conveyor belt. The compartments con... | 07/02/1985 |
| 4525761 | Transcriber with erasing device A transcriber used for repeatedly reproducing information recorded on a tape, comprised of a through-hole provided in a part of the main body of the transcriber and an eraser which has a magnet to generate magnetic flux in a prescribed direction to the th... | 06/25/1985 |
| 4525054 | Camera The disclosed camera permits selection of one exposure control mode along one program line based on brightness and at least another control mode along another program line. An operation control selects the one mode when self-timer photography is not used,... | 06/25/1985 |
| 4524997 | Hose coupling A hose coupling for connecting lengths of fire hose is formed by coupling halves. Each coupling half includes a hose connection piece and a cam ring rotatable relative to the hose connection piece. The cam rings provide a bayonet-type locking engagement. ... | 06/25/1985 |
| 4524959 | Holder of pipes or pipe joints for welding A holder for use in holding two pipes or pipe joints to be welded where one of the pipes or pipe joints is held by three pipe abutting members mounted in angularly spaced relation on a common holder with the position of the pipe abutting members being adj... | 06/25/1985 |
| 4524804 | Electropneumatic servo valve for controlling a volume current and pressure, respectively Electropneumatic servo valve for controlling a volume current or a pressure, respectively. The subject matter of the invention relates to a two-stage, electropneumatic servo valve for controlling a volume current. The servo valve (1, 2) consists of an ele... | 06/25/1985 |
| 4523828 | Focus detecting device A focus detecting device of the type in which infrared light is projected onto an object, and the reflected light from the object is detected through an objective lens. Focusing conditions of the objective lens are distinquished from each other. The infra... | 06/18/1985 |
| 4523778 | Hose coupling The invention relates to a hose coupling whose halves are held together by identical cam rings (Storz coupling). For the solution of the problem to construct the connections which are to be arranged in the halves of such couplings to be short and light an... | 06/18/1985 |
| 4523772 | Sandwich type construction multilayer skis A multilayer ski with a sandwich type construction includes a core, a cover layer on one side of the core, a running base layer on the other side of the core and at least one web positioned between the core and one of the cover layer and the running layer... | 06/18/1985 |
| 4523603 | Air intake control for an adjustable air inlet, particularly two-dimensional oblique shock diffuser for gas turbine jet engines for the propulsion of high performance aircraft A variable air inlet includes an air intake duct with upper ramps, an air inlet bottom spaced below the ramp and a movable air scoop lip pivotally secured to the end of the air inlet bottom closer to the opening into the air intake duct. The air scoop lip... | 06/18/1985 |
| 4522480 | Battery voltage checking device for cameras A battery checking device for cameras of the type having a booster circuit the output of which is fed as electrical power to a load is disclosed. In the case of the camera of the type described, when the battery voltage is checked at the output of the boo... | 06/11/1985 |
| 4522479 | Flash apparatus with power supply control device Disclosed is a power supply control device which automatically cuts off power to a flash apparatus by turning off a power switch a predetermined time after the switch is turned on to prevent waste of electrical energy arising from careless failure to turn... | 06/11/1985 |
| 4522477 | Electric motor drive device for camera In an electric motor drive device for a camera having first and second one-way clutches arranged to transmit a driving force either to a film winding transmission member or to a film rewinding transmission member by a change-over operation on the rotation... | 06/11/1985 |
| 4522415 | Piston ring for an internal combustion engine A piston ring (1) made of ceramic materials for an internal combustion engine comprising a body made by sintering of partially stabilized zirconium oxide (PSZ) which has a porosity | 06/11/1985 |
| 4522322 | Self-opening closure for a casting crucible used in aluminothermic reactions A self-opening closure for casting crucibles used in aluminothermic reactions and made of a high mechanical-strength, high boiling point inorganic material producing no gases when heated, the closure being composed of one or more sealing disk(s) made of a... | 06/11/1985 |
| 4522316 | Container for plastic substances A container for a plastic substance includes an axially elongated sleeve defining a hollow space for holding the substance. An extrusion piston is slidably displaceable through the hollow space for extruding the substance out of a discharge outlet. The pi... | 06/11/1985 |
| 4521122 | Needle printer assembly A needle printing device having a plurality of printing needles mounted in electromagnets with a permanent magnet operating through a yoke to retain a spring upon which the needles are mounted against the core of the electromagnet, the spring having an ar... | 06/04/1985 |
| 4520993 | Metering valve An all metal gas metering valve is used in high vacuum installations in the range of 10-9 Torr. 1/sec. to 100 Torr. 1/sec. relative to helium and 20° C. ambient temperature. An axially extending tubular member forming a part of the valve housi... | 06/04/1985 |
| 4520968 | Dispensing device for cylindrical bodies, such as rolls of toilet paper, paper towels and the like A dispenser for rolls of toilet paper, towels and the like in which a plurality of rolls are stacked vertically in a magazine with the axes of the rolls disposed normal to the vertical extension of the stack. A dispensing and holding mechanism comprises a... | 06/04/1985 |
| 4520607 | Releasable resilient mounting assembly for panel members A retaining clip composed of a resilient clasping spring and a lock member wherein the clasping spring operates to releasably engage the engagement portion of a panel member, such as a wall or ceiling plate, the engagement portion operating to resiliently... | 06/04/1985 |
| 4520091 | Encapsulated electrostatographic toner material An encapsulated electrostatographic toner material comprising a core and a shell enclosing the core, in which said core comprises: a colorant; a polymer; a solvent having a boiling point of not lower than 180° C. which is capable of dissolving the polymer of ... | 05/28/1985 |
| 4519685 | Finder for single lens reflex camera In the disclosed viewfinder, a focusing plate receives light from an objective via a reflex mirror, and after focusing, passes light to an eyepiece via a penta prism. A by-pass optical system receives light from outside the view field of the viewfinder an... | 05/28/1985 |
| 4519138 | Automatic drafting device with adjusting aid In an automatic drafting device having a carriage with toothed wheels in meshed engagement with a toothed rack which extends across a planar drafting surface and with a control mechanism for controlling movement of a stylus on the carriage to effect draft... | 05/28/1985 |
| 4518662 | Copper solder containing cobalt Copper alloy solders are disclosed which contain 0.5 to 20% by weight of cobalt. The copper and cobalt may be arranged in heterogeneous phases.... | 05/21/1985 |
| 4518357 | Fastening system for mucous membrane-supported denture A fastening system for a mucous membrane-supported denture is composed of a removable, mucous membrane-supported denture (3) and holding devices which effect a secure support during the wearing of the denture. The holding devices are composed of two great... | 05/21/1985 |
| 4518328 | Piston for piston pump In a piston for a piston pump including a stopper and a flange fittedly mounted on one end of the piston rod effecting a reciprocating strokes within a cylinder, a reinforcing ring member is fitted between a suction side of a piston packing and a piston m... | 05/21/1985 |
| 4518291 | Plastics material expansion dowel with wave-form slots A plastics material expansion dowel has an axially extending dowel body with a central hole extending in its axial direction and with wave-form slots also extending in the axial direction and opening into the central hole. The wave-form slots have alterna... | 05/21/1985 |
| 4518267 | Mobile event-module An event-module is, on its lowest logical level, a universal instrument for measurement and storage of times, intervals, periods, time series and durations. It permits codification of personal and external events by means of time-marks and makes them acce... | 05/21/1985 |
