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| Number | Title | Issue Date |
| 4115037 | Opposed piston internal combustion engine-driven pump An engine driven reciprocating air compressor. The engine is operated in a through scavenge two-stroke mode. The engine has opposed pistons reciprocating in opposition in a cylinder, the pistons being rigidly connected to respective compressor pistons wor... | 09/19/1978 |
| 4113711 | Vasoactive lung polypeptides Vasoactive polypeptide fractions having biological activity isolated in purified form from animal lungs induce peripheral vasodilation and systemic hypotension. One of the peptides exhibits the property of relaxing isolated non-vascular smooth muscle orga... | 09/12/1978 |
| 4112696 | Drive shield A drive shield for use in tunnelling operations includes a generally cylindrical cutting edge supported by a frame. A knife shield is telescoped together with the cutting edge, the knife shield having a plurality of elongate members (or planks). Each of t... | 09/12/1978 |
| 4113466 | Concentration of hydrated aluminum oxide minerals by flotation A process for the concentration of hydrated aluminum oxide minerals from raw materials by flotation alone or in combination with magnetic separation using a series of conditioning steps prior to flotation involving dispersion, precipitation and flocculati... | 09/12/1978 |
| 4112124 | Food packaging system and method Disclosed are a method of and system for packaging commercially sterile foods by placing the sterile food in a plastic container tending towards opacity to visible light radiation and tending towards transparency to ultraviolet radiation. The container is... | 09/05/1978 |
| 4111225 | Sewage disposal method and system A mobile tank mounted on a set of wheels is hitchable to the back of a vehicle for transport between a camping area and a remote sewage area. A plurality of cleaning nozzles, interconnected by a conduit, are disposed along the top of the tank. The nozzles... | 09/05/1978 |
| 4112420 | Apparatus for detecting the breakage of an acoustically conductive medium A piezoelectric transducer is secured to the surface of a glass sheet to translate mechanical vibrations generated in the glass sheet into an electrical signal when a crack is produced. A detection circuit is connected to the transducer to determine wheth... | 09/05/1978 |
| 4112505 | Read-only-memory with shunt path to divert programming current An integrated circuit programmable read only memory is arranged in a matrix aving a plurality of memory cells arranged in rows and columns. A particular cell in a matrix is addressed by selecting the appropriate row and column. A destructible memory elemen... | 09/05/1978 |
| 4112395 | Method of and apparatus for matching a load circuit to a drive circuit A high Q load circuit is automatically matched to a drive circuit with an L network having a series reactance and a shunt reactance, one of which is on a load circuit side of the network and the other of which is on a drive circuit side of the network. Th... | 09/05/1978 |
| 4109335 | Shoe support apparatus Shoe support apparatus, particularly for supporting a shoe thereon during the performance of a shoe shining operation, is disclosed. A base panel is adapted to be secured to a vertical support surface, such as, for example, a wall or a door. A shoe suppor... | 08/29/1978 |
| 4110545 | Electrodes for glass furnaces A ceramic electrode comprises an electrode body having at least one longitudinal hole, an elongated hollow connector member of a noble metal having a cross-sectional shape corresponding to that of the hole and being a close fit in the hole, and a plug mem... | 08/29/1978 |
| 4109657 | Body profiled surgical drainage appliance An appliance for supporting a fecal bag to the body of a colostomy or ileostomy patient to receive bodily discharge from the stoma comprises an ellipsoidal plate having a curved surface on a body engaging side and a recessed bag supporting ring on the opp... | 08/29/1978 |
| 4108114 | Fuel reformer for generating gaseous fuel containing hydrogen and/or carbon monoxide A reformer for obtaining a reformed gas containing H2 and/or CO from an ordinary fuel exemplified by a petroleum fuel, having a reaction chamber in the form of a combustion chamber of a compression-ignition internal combustion engine, preferabl... | 08/22/1978 |
| 4108132 | Internal combustion engine having an improved inlet valve arrangement Insulating spaces or material formed on or disposed in an inlet valve seat partially insulates same to reduce the rate of heat dissipation into the cylinder head. The hotter than normal valve and valve seat insert heat and partially evaporate the HC layer... | 08/22/1978 |
| 4109198 | Peak level indicating electronic circuit An a.c. input signal is supplied to at least one input terminal to which at least one rectifier is connected for converting the a.c. input signal to a d.c. signal corresponding thereto. A plurality of transistors are connected between the at least one rec... | 08/22/1978 |
| 4108435 | Portable runway with longitudinal supports and tension holding means A training device for practice running is disclosed having an elongated framework supporting a latticework made of resilient crosslines and a resilient intersecting center line positioned above the ground to define spaces in which the runner is to place h... | 08/22/1978 |
| 4107789 | Method and apparatus for uniformly pneumatically dispersing material The invention employs high volume air to form a cloud of coating material or material to be uniformly dispersed and conveys it to a plenum or common area of the receiving material which is coated. A mixer creates turbulence in the receiving material to tu... | 08/15/1978 |
| 4107622 | Tone controller A feedback resistor is interposed between a reversing input terminal of an audio amplifier and at least one impedance circuit. The impedance circuit is connected to an output terminal of the amplifier to receive an amplified audio signal from the amplifie... | 08/15/1978 |
| 4106213 | Exhaust recirculation system for clothes dryer A device for recirculating warm, moist air from a clothes dryer exhaust into a room is attached to the standard vent pipe of the dryer. The device comprises a length of corrugated, sheet aluminum tubing having a substantially right-angled bend. One end of... | 08/15/1978 |
| 4107753 | Cassette holder capable of rotation through a larger angle of inclination A cassette holder pivotally supported at its rear end and adapted to allow the insertion of cassettes at a set position within a cassette tape recorder. The cassette holder has a pivoted section capable of movement against the force of a spring so that th... | 08/15/1978 |
| 4105748 | Method of producing phosphoric acid and potassium dihydrogen phosphate from phosphate rock in the substantial absence of fluorine evolution Substantially fluoride-free phosphoric acid is produced by the acidulation of phosphate rock with sulfuric acid wherein the acidulation reaction is conducted in the presence of added potassium as K2 O bearing compounds, e.g. KHSO4, K... | 08/08/1978 |
| 4105360 | Dual cut boring tool assembly A boring tool assembly performs both the rough and finish cutting operations upon a metal work piece without power activation or manual adjustments of the tool units between the cutting strokes. The assembly includes a boring bar having a pair of fixed, d... | 08/08/1978 |
| 4104801 | Drawing instrument A drawing instrument comprises a pair of limbs pivoted together at their inner ends to form an assembly. A bow top has an interior hole and fork limbs embracing the assembly of the inner ends of the pivoted limbs. The fork limbs include pivot holes for re... | 08/08/1978 |
| 4105957 | Full wave bridge power inverter A full bridge inverter includes four bipolar transistors of like conductivity type, connected in a bridge circuit including an apex to which a load is connected. During a first time interval, emitter collector paths of a first pair of transistors are conn... | 08/08/1978 |
| 4103657 | Twin-barrel carburetor with an air-fuel ratio control device The provision of an air-fuel ratio control is made to the secondary side of a twin-barrel carburetor as well as the primary side thereof.... | 08/01/1978 |
| 4103577 | Shears A shearing device for cutting rod of the type comprising a pair of coplanar discs with projecting blades has the blades mounted in grooves in the discs so that the tips of the blades can be moved into and out of the path of the rod, thereby enabling the d... | 08/01/1978 |
| 4104717 | Automatic system for providing telephone number information service In an automatic telephone information retrieval system, each subscriber entry is encoded according to primary name, secondary name, primary address, secondary address, generic occupation and specific occupation. The entire contents of a local telephone di... | 08/01/1978 |
| 4102616 | Rotary piston internal combustion engine and rotor thereof A rotary piston internal combustion engine of the epitrochoidal type is provided with means whereby the cooling effect of a cooling liquid medium on a trailing chamber portion of the combustion chamber is reduced or eliminated. Thus a tendency that the mi... | 07/25/1978 |
| 4102163 | Device for securing skis and ski sticks For securing together a pair of skis and ski sticks a pair of holder members are secured one on the upper face of each ski, and a pivoted securing arm on each holder member can be moved into a position in which it is locked to the holder member of the oth... | 07/25/1978 |
| 4102139 | Mining equipment A self-advancing, hydraulically powered, mine roof support comprises at least one advancing piston and cylinder unit located in or adjacent a base means of the support and attached at or towards the front of the roof support to a lifting ram operable alon... | 07/25/1978 |
| 4103164 | Radiacmeter with null deflection system A portable gamma radiation dose rate meter suitable for use over 3 or 4 decades over the dose rate range 0.1 mR/hr and 1000 R/hr which incorporates an ion chamber or other radiation detector and a null deflection readout system using a calibrated potentio... | 07/25/1978 |
| 4100892 | Closed-loop mixture control for an internal combustion engine of a roadway vehicle with means for compensating for fuel deficiency during vehicle start-up periods A closed-loop mixture control system for an internal combustion engine of a roadway vehicle includes a vehicle start sensor and a voltage sensor to determine whether the fuel quantity at the instant the vehicle is started from at rest is below a predeterm... | 07/18/1978 |
| 4101795 | Ultrasonic probe An ultrasonic probe particularly suitable for ultrasonic diagnostic equipments of the electronic scanning type is made up of a multiplicity of piezoelectric transducer elements, each in the shape of a rectangular plate with electrode films coated on both ... | 07/18/1978 |
| 4096748 | Wheatstone bridge measuring circuit Temperatures are automatically measured with a Wheatstone bridge including first and second branches and a diagonal connected between taps of the branches. The first branch includes first and second series connected resistors respectively having values of... | 06/27/1978 |
| 4096393 | Solar energy converter Radiant energy is converted into electric energy by irradiating a capacitor including an ionic dielectric having a dipole layer only on or near its surface. The dielectric is selected from the group consisting of the rare earth trifluorides and trichlorid... | 06/20/1978 |
| 4095451 | Gas turbine blades In a method and equipment for refurbishing gas turbine blades a portion of each blade extending from the tip is rolled under pressure, the direction of rolling being towards the tip, to effect extension of the tip, after which the extended tip is machined... | 06/20/1978 |
| 4095432 | Mine roof supports A mine roof support comprises a plurality of hydraulically extensible chock legs attached at their upper ends to one or more elongate roof bars by means of a projection on each chock leg passing through an aperture in the underside of the roof bar(s) to b... | 06/20/1978 |
| 4094124 | Process and apparatus for the manufacture of filled, closed containers The invention concerns the production of closed containers filled with a liquid or particulate material. Production takes place on a machine having two tiers revolving about a common, stationary shaft. The container wall is shaped from a blank and then we... | 06/13/1978 |
| 4094471 | Device for feeding thread into a traversing device in a winding machine A device feeds thread into a winding and traversing mechanism of a winding machine. The thread is fed to a spool via a traversing device having a thread guide and a reverse thread roller. The start of the thread is fed to an entrainment means via a slot t... | 06/13/1978 |
| 4093482 | Heat and sound insulator of curved corrugated paperboard and method of shaping same A plane plate of corrugated paperboard, which is produced by bonding a corrugated medium and at least one liner board with a thermoplastic resin, is shaped into a curved plate by means of a hot-press so that the resin fluidifies and allows the medium and ... | 06/06/1978 |
