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| Number | Title | Issue Date |
| 4129982 | Mercury switch arrangement for digital watch An automatically operating switch for activating the display of an LED digital wrist watch. The orientation of the wearer's wrist determines each of the various functions of the watch that are visually displayed. A curved tube of a non-wetting type is pro... | 12/19/1978 |
| 4129983 | Liquid crystal digital display electronic wristwatch A liquid crystal digital display electronic wristwatch wherein the digital display is driven at the same potential as the remaining elements comprising the electronic wristwatch is provided. The electronic wristwatch includes an oscillator circuit for pro... | 12/19/1978 |
| 4129984 | Gas turbine engine with anti-icing facility The disclosure of this invention pertains to a gas turbine engine with anti-icing facility. The engine has an axial flow compressor having a rotor hub provided at its upstream end with a nose for dividing the air stream into the compressor. The nose has a... | 12/19/1978 |
| 4129985 | Combustor device of gas turbine engine A combustor device of a gas turbine engine, which combustor device is supplied with compressed air from a compressor and delivers combustion gas to a turbine, comprises an outer casing and an inner casing defining therein a combustion chamber and forming ... | 12/19/1978 |
| 4129986 | Method of and means for preventing thermal shock to a hydraulic motor in an open-loop hydraulic system Disclosed is a method of preventing thermal shock to a hydraulic motor in an open-loop hydraulic system. The method comprises the step of circulating warm oil through the motor when it is not in use. Preferably the method includes the further step of retu... | 12/19/1978 |
| 4129987 | Hydraulic control system The disclosure is directed to a closed center, pressure compensated hydraulic system which uses a multiple section hydraulic control valve in conjuction with a variable output hydraulic pump. The hydraulic control valve has a plurality of independently op... | 12/19/1978 |
| 4129988 | Tidal power plant or the like A buoyant body is carried by one or more stationary shafts that extend obliquely and freely, from securement adjacent to an end or ends thereof, in a body of water whose surface level varies with time. Each shaft extends through at least that depth portio... | 12/19/1978 |
| 4129989 | Ballasted floating barrier boom A floating ballasted oil containment boom provides a stable continuous barrier to the passage of petroleum or other contaminants floating on the surface of water. Boom elements are connected end to end by an overlapping joint.... | 12/19/1978 |
| 4129990 | Advancing support An advancing support for providing a continuous propping, particularly for providing a continuous propping of mine galleries or like passageways, comprising at least two carriages for articulated tracks, each of said carriages including a beam having roun... | 12/19/1978 |
| 4129991 | Method of producing a concrete lined tunnel or other underground excavation A method of producing a concrete lined tunnel, or other concrete lined underground excavation, in which first a rough tunnel is excavated of a cross-section which is greater than that of the tunnel to be lined with concrete, whereafter a lost form is conn... | 12/19/1978 |
| 4129992 | Laying tool for laying of submarine cables into a sea-bottom Laying tool for laying of submarine cable in a sea-bottom trench. The tool comprises a drag unit and a pulling tube joined by a cardanic suspension and drawn by a vessel for use under variable sea and bottom conditions. The cable is laid out from the vess... | 12/19/1978 |
| 4129993 | Refrigeration equipment, particularly household refrigeration or the like Refrigeration equipment, particularly a household refrigerator or the like, having a heat-insulated refrigeration chamber and a refrigeration unit which can be switched-on intermittently by a temperature-dependent control and the heat exchanger of which, ... | 12/19/1978 |
| 4129994 | Instant-cooling ice-maker air conditioner In a preferred embodiment, a thermostatically-controlled variable air-circulation mechanism and a thermostatically-controlled coolant-pump circulatable of coolant from a coolant vessel to the fan-containing cooling-coils air-space enclosure cyclically, an... | 12/19/1978 |
| 4129995 | Evaporation pressure control device In a refrigeration cycle of an air conditioning system of the type, in which lubricating oil for lubricating a compressor circulates through the refrigeration cycle together with refrigerant, an evaporation pressure control device is provided between an e... | 12/19/1978 |
| 4129996 | Vent system for a self-contained air conditioner A self-contained air conditioner unit of the type divided into indoor and outdoor chambers and, more particularly, to a venting system including a duct having an air directional valve system wherein in a vent mode a first passageway is provided for direct... | 12/19/1978 |
| 4129997 | Permanent refrigerant dehydrator A refrigerant dehydrator, in combination with a refrigeration system of the type including a compressor, a condenser, a refrigerant expansion device, and an evaporator, incorporating a body member, of generally U-shaped configuation, surrounding a refrige... | 12/19/1978 |
| 4129998 | Earring An earring for a pierced ear having a means for attaching an ornament to a pierced ear which means is a resilient device having two parts compressible towards each other as they pass through the piercing in the ear and which, after passing through the pie... | 12/19/1978 |
| 4129999 | Ring guard attachable by melting end portions thereof A ring guard for use in combination with a finger ring which compensates for the difference in size between one's finger and the internal diameter of the ring. The guard includes an elongated resilient finger engaging main body member having a mid-section... | 12/19/1978 |
| 4130000 | Drill string shock absorber A shock absorber from an oil well drill string mounted therein adjacent its drill bit to cushion drill bit impacts in hard formations and having an elongate tubular mandrel, for connection with said bit, slidably mounted in and drivingly connected to an e... | 12/19/1978 |
| 4130001 | Drive coupler and uncoupler A device is disclosed for coupling and uncoupling driving and driven members. The driving and driven members each include a flange and means are provided for engaging and disengaging said flanges. When the flanges are engaged, the members are coupled wher... | 12/19/1978 |
| 4130002 | Slip coupling Slip coupling incorporating bearing-quality friction surfaces and a flexible structure that isolates torsional vibration.... | 12/19/1978 |
| 4130003 | Apparatus for manufacturing helical coils In the automated manufacture of helical coils from sheet-metal blanks, each station of a rotatable set or carrousel of winding stations picks up a flat elongated blank from a stationary loader and securely grips and locks one end in an angled position aga... | 12/19/1978 |
| 4130004 | Method for bending tubes A tube bend is started by compresssion bending and continued by draw bending. Conventional bending equipment is employed with one die slightly modified so that normal machine operation causes the pressure die to initially operate in a compression bending ... | 12/19/1978 |
| 4130005 | High speed ball header A method and apparatus of cold forming is disclosed for improving die life. During a first phase a workpiece is initially engaged between a pair of dies with a sufficiently low force and velocity level to reduce die errosion but with a sufficiently high l... | 12/19/1978 |
| 4130006 | Riveting system A mobile production riveting system comprising a power actuated hand operated "gun" tool assembly for pulling and automatically collecting the mandrels of inserted blind rivets and panel mounted associated equipment including power supply, control valve, ... | 12/19/1978 |
| 4130007 | Footwear tester Footwear tester comprising a machine stand, a prime mover mechanism mounted on the machine stand, a footwear block supporting mechanism which supports freely a footwear block to be automatically advanced and retreated by said prime mover, a footwear block... | 12/19/1978 |
| 4130008 | Device for measuring friction and distance A device for measuring the coefficient of friction between a test material and a surface comprises a frame upon which is slidably mounted a test pad holder. The test pad holder has a pad of test material mounted on it so that the test material is in conta... | 12/19/1978 |
| 4130009 | Method and apparatus for determining thermoparticulation temperature of compounds A composition is disclosed of malonic acid, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a fluid stream. The solvent in the composition is evaporated to produce a thermo-particul... | 12/19/1978 |
| 4130010 | Bubble detector Apparatus for detecting bubbles in drilling mud so that appropriate corrective action may take place prior to a possible blowout. A low frequency acoustic field is transmitted through the drilling mud which causes the displacement of any bubbles rising th... | 12/19/1978 |
| 4130011 | Flared sonic end nozzle velocity coupling test burner A flared sonic end nozzle velocity coupling test burner having a body, the walls of which define a chamber. The chamber is closed at one end thereof and has a flared sonic nozzle at the other end. Tests are performed for determining velocity coupling resp... | 12/19/1978 |
| 4130012 | Soil moisture indicator A soil moisture indicator including a rigid planar base member having sufficient strength to permit its partial insertion into soil adjacent growing plants and a water absorbent member, such as blotter paper, secured to the base member. Overlying the wate... | 12/19/1978 |
| 4130013 | Apparatus and method for using fuel pressure to trigger an injection timing device A strain gauge transducer device externally mounted on a fuel line leading to a diesel engine and a circuit for developing engine timing signals from the transducer device output. The circuit includes a peak voltage detector to detect a peak signal from t... | 12/19/1978 |
| 4130014 | Tension monitor means An apparatus for measuring and monitoring the tension on a web or strand as it extends and/or moves over and around a roll including a support assembly for supporting at least one end of the roll, said support assembly including a bridge structure having ... | 12/19/1978 |
| 4130015 | Safe take-off indicators An on-board take-off performance indicator system for an aircraft includes a ground-engaging wheel which measures distance run during take-off and moves the slider of a selected one of a bank of potentiometers in response thereto. Each potentiometer is wo... | 12/19/1978 |
| 4130016 | Adiabatic calorimeter apparatus and method for measuring the energy change in a chemical reaction The adiabatic calorimeter apparatus disclosed herein is designed for chemical hazard research, particularly the study of self-heating reactions, which can result in a runaway situation. The reaction vessel and associated components in this apparatus close... | 12/19/1978 |
| 4130017 | Flow rate measuring device A flow rate metering device having an inlet plenum chamber which accepts fluid flow of any velocity distribution and disperses that fluid to a homogeneous, essentially zero velocity fluid body from which a flow nozzle draws such zero velocity fluid and ac... | 12/19/1978 |
| 4130018 | Ultrasonic transducer with reference reflector An ultrasonic transducer for a system for determining liquid levels by echo ranging composed of a housing including a piezoelectric crystal mounted within the housing to transmit acoustic waves, an impedance matching medium mounted within the housing adja... | 12/19/1978 |
| 4130019 | Self-compensating thermocouple reading circuit A plurality of thermocouples are connected to reading circuit conductors at an isothermal junction block, for selective connection to the input of an operational amplifier. The resulting output signals from the operational amplifier are monitored and stor... | 12/19/1978 |
| 4130020 | Portable bearing support A device for measuring out-of-balance forces comprising a frame mounted on wheels, a load receiver mounted on the frame, an elongated pointer arm having one end securely fastened to the frame and a relative type pick-up mounted on the frame in communicati... | 12/19/1978 |
| 4130021 | Ultrasonic sector scanning search unit A sector scanning search unit which supports a transducer for oscillation about a virtual pivot axis extending medially across the face of the transducer. The scanner unit is an elongate hand held unit in which the transducer is supported near one end of ... | 12/19/1978 |
