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| Patent # | Description |
|---|---|
| US-4,493,644 |
Device for measuring and scraping operations in the field of
prestorative dentistry An improved device for measuring an inclination angle of the tapered surface of a plaster die duplicated from the prepared tooth in the field of restorative... |
| US-4,493,643 |
Dental handpiece having non-contact rotational speed detection device A dental handpiece having therein a non-contact rotating speed detection device which includes an electromagnetic induction pulse generator including a permanent... |
| US-4,493,642 |
Orthodontic device and associated orthodontic method An orthodontic device comprises a face bow member which includes generally diverging outer arms adapted for connection to an orthodontic headpiece and inner arms... |
| US-4,493,641 |
Bake oven with manifold A paint bake oven (10) including an outer insulated housing (12), the outer insulated housing having an inner wall surface (14). An inner housing (16) is... |
| US-4,493,640 |
Solvent reducing oven A solvent reducing oven wherein stock that includes solvent is conveyed through an oven housing from which the solvent vapors are ducted and propelled into the... |
| US-4,493,639 |
Conductive ink for flashlamp array circuit A modified carbon ink for a flash lamp array circuit containing a particulated electrically conductive material such as graphite or metal flakes, metal-coated... |
| US-4,493,638 |
Post-aerated burner for ground flare, and ground flare incorporating same Burner for a concealed flare has a fuel gas supply pipe having a low resistance to upward aspirated air flow. The pipe has outlets directing fuel gas onto... |
| US-4,493,637 |
Fossil fuel catalyst generator The invention relates to a method and apparatus for introducing a catalyst into a fuel mixture. The method includes placing water in a container; passing air... |
| US-4,493,636 |
Gasification system A method and system for injecting coal and process fluids into a fluidized bed gasification reactor. Three concentric tubes extend vertically upward into the... |
| US-4,493,635 |
Oxygen-enriched air ratio control device for combustion apparatus A control device controls the air ratio in a combustion apparatus constructed so that combustion fuel supplied via a combustion fuel supplying pipe is burned... |
| US-4,493,634 |
Kerosene heating stove with temperature and carbonic oxide sensors A kerosene heating stove is equipped with a temperature sensor and a carbonic oxide sensor. The temperature of a space is maintained at a constant level by... |
| US-4,493,633 |
Apparatus for moulding an article from plastic material Apparatus for moulding an article (11) of thermoplastic material from a parison (10) in which certain parts (17,16) of the parison are re-formed while other... |
| US-4,493,632 |
Spacer in metal-mold vulcanizer for rubber hose An annular spacer to be used, during the vulcanization in a metal mold of an unvulcanized rubber hose having a mandrel pierced therethrough, as fitted around the... |
| US-4,493,631 |
Apparatus for producing variable-rate spring An elastomeric spring is formed by extruding a rubbery material into a reinforcing sleeve in a mold during relative motion between the mold and nozzle, and... |
| US-4,493,630 |
Apparatus for dewatering and plastifying mixtures for the manufacture of
explosives In the case of an apparatus for dewatering and plastifying water-wet mixts of materials for manufacturing explosives, as for example mixtures for producing... |
| US-4,493,629 |
Modular spinnerette assembly A modular spinnerette assembly for forming hollow fibers wherein a spinnerette plate having a central bore is positioned in stacked alignment with a cylindrical... |
| US-4,493,628 |
Melt spinning apparatus A melt spinning apparatus is disclosed which is adapted for forming a plurality of synthetic filaments from a molten polymer. The apparatus comprises a spin... |
| US-4,493,627 |
Apparatus for molding foam cushion packaging An apparatus is described for use in a urethane foam molding process to make a molded packing that is employed in the packaging of an article. A generally air... |
| US-4,493,626 |
Auxiliary radially shifting mechanism for vanes in a pump of the vane
type An auxiliary radially shifting mechanism for vanes in a pump of the vane type having a cup-shaped cylinder, a rotor eccentrically and rotatably received within... |
| US-4,493,625 |
Grooved gear pump The drive and driven gears of a pump are formed with grooves extending inward from the tips of the teeth to inside the root diameter. Thus each gear is divided... |
| US-4,493,624 |
Lubricating oil-separating device in a refrigerant compressor for air
conditioning systems In a refrigerant compressor for use in an air conditioning system, a lubricating oil-separating device is mounted in the discharge pressure chamber communicating... |
| US-4,493,623 |
Oil lubricated main drive shaft for fuel pump A drive shaft (26) of a gear type fuel pump (2) forms a driving interconnection between an engine gearbox (4) and a shaft (14) which carries the driving gear... |
| US-4,493,622 |
Variable displacement motor A hydraulic motor which varies its displacement in accordance with varying torque loads on its output shaft. The motor is biased to a low displacement, low... |
| US-4,493,621 |
Fuel injection pumping apparatus A fuel injection pumping apparatus of the rotary distributor type has cam lobes of a special form in which following the crest of the cam lobe there is a first... |
| US-4,493,620 |
Electrically operated fuel pump device An electrically operated fuel pump device for use in vehicles comprises a regenerative pump component and an electric motor component operatively connected to... |
| US-4,493,619 |
Pressure systems for spray liquids A teat spray system for installation in an automatic milking parlor for spraying the teats of cows. The system comprises a differential vacuum line switch,... |
| US-4,493,618 |
Handle for compressor units A novel handle means for compressor units adapted to appropriately engage the charge, discharge, and suction outlets of a standard, lightweight, portable... |
| US-4,493,617 |
Fuel injection pump with plunger stroke control A rotary fuel injection pump having a rotary charge pump and a stroke control mechanism for variably limiting the outward stroke of a pair of diametrically... |
| US-4,493,616 |
Pump assembly and operating method An improved pump assembly is used to supply fuel to an aircraft engine and includes a positive displacement pump which supplies fuel during low speed operation... |
| US-4,493,615 |
Electro-rheological transducer A transducer with which mechanical rotary motion can be interconverted with the flow of an electro-rheological fluid. Two, electrically conductive, movable,... |
| US-4,493,614 |
Pump for a portable ventilator A pump primarily intended for use in a portable ventilator. The pump includes a piston-cylinder arrangement in which the piston is reciprocally moved within the... |
| US-4,493,613 |
Oil well pump drive An oil pump assembly having an adjustable production rate and capable of long stroke, low stroke per minute pumping rates, comprising a reciprocating pumping rod... |
| US-4,493,612 |
Axially slideable plenum for circulation control aircraft Mechanical collective pitch control system for a circulation control rotor system aircraft utilizing an axially moveable pneumatic system plenum 32 in the... |
| US-4,493,611 |
Horizontally split casing of turbo machine A horizontally split casing of a turbo machine, such as a centrifugal compressor, including one half casing formed with scroll grooves on an inner peripheral... |
| US-4,493,610 |
Axial thrust balancing system An axial thrust balancing system including a sleeve for balancing an axial thrust applied to a rotary shaft and a bush defining therebetween a clearance having... |
| US-4,493,609 |
Pumping apparatus An apparatus for pumping a liquid stored under pressure without pressure-induced, liquid leakage during seal failure. The liquid or slurry being pumped is... |
| US-4,493,608 |
Surge control in compressor A steam generation system employing a flash tank feeding low-pressure steam to a compressor controls surges in the compressor by calculating the amount of steam... |
| US-4,493,607 |
Tee-type valve for self-priming pump system A self-priming system for liquid pumps wherein a priming valve is provided to convey a quantity of priming liquid to the pump upon loss of pump suction. A pilot... |
| US-4,493,606 |
Wafer transfer apparatus Apparatus for placing a first element at a receptacle location on a second element, there being associated with the precise receptacle location some known... |
| US-4,493,605 |
Material handling apparatus for loaders A clamshell-type loader bucket has a pair of jaws with meeting edges that close together on one side of the bucket and on the bottom of the bucket to retain fine... |
| US-4,493,604 |
Fork lift clamp apparatus An apparatus for clamping pipes and the like to the forks of a forklift truck. A flapper arm is pivotally attached to a frame member which straddles each fork of... |
| US-4,493,603 |
Wheel chair lift apparatus The present wheel chair lift apparatus has a rotatable post at the front of a doorway in the side of a van. A pivotally mounted electric motor rotates this post... |
| US-4,493,602 |
Wheelchair lift apparatus A wheelchair lift apparatus of rotary construction including a brake system for a carriage lift assembly adapted to receive a wheelchair for mounting in the door... |
| US-4,493,601 |
High capacity, self-unloading forage hopper The forage receiving container box of a crop transporting vehicle has a shiftable top that may be closed down to compact the box for over-the-road travel without... |
| US-4,493,600 |
Furnace charging system The movements of an oscillatory member, for example the charge distribution spout of a furnace charging system, are caused to follow the movements of a remotely... |
| US-4,493,599 |
Article depalletizer A device for depalletizing tiers of articles and depositing said articles carried on a multi-tier pallet A onto a receiving table. The device includes an elevator... |
| US-4,493,598 |
Master-slave type telescopic telemanipulator A telescopic telemanipulator of the master-slave type, wherein the slave arm is equilibrated by means of at least one counterweight mounted on a link articulated... |
| US-4,493,597 |
Nut lock assembly A removable reusable nut lock system (10) of the locking cap type for positively selectively removably retaining a standard nut (12) on the externally threaded... |
| US-4,493,596 |
Rotary material removing tool A rotary material removing tool whose holder can be installed in and rotated by a milling or like machine. The front portion of the holder has a transverse slot... |
| US-4,493,595 |
Compact multiple spindle boring head with quick change tool supports A multiple spindle boring head including a plurality of boring spindles simultaneously radially positionable relative to a central boring head axis by a... |
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