Quotables
"Radio has no future."
Lord Kelvin, British mathematician and physicist ; 1897
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4361406 | Apparatus for mixing salvaged asphalt material An elongated drum for mixing asphalt materials has a rear inlet end, a front outlet end and a side wall concentric to a substantially horizontal axis about which the drum rotates. For feeding salvaged asphalt material into the drum, the side wall has circ... | 11/30/1982 |
| 4344519 | Auto-sampler and feed chute for an asphalt plant An aggregate feed chute for an asphalt plant includes a diverter wall which may be selectively actuated to capture the entire discharge stream of a material conveyor for sampling purposes without the necessity of moving the feed chute with respect to the ... | 08/17/1982 |
| 4342530 | Water dam for a fastener A water dam in the form of a cup is secured around the head of a fastener to confine water that leaks pass the fastener to a localized area.... | 08/03/1982 |
| 4338732 | Lifter cage for asphalt plant, dryers and drum mixers An asphalt plant apparatus is disclosed having a material lifter cage arranged in coaxial relationship within a mixing drum. The lifter cage includes a plurality of cage lifters having a trough-like configuration for collecting material in the drum and sp... | 07/13/1982 |
| 4331314 | Hydraulic pump/turbine discharge ring support anchorage A hydraulic pump/turbine discharge ring leveling, supporting and anchoring apparatus is disclosed which includes a prestressed anchor stud (21) connected between an upper foundation ring (28) and a flange portion (17') of a pump/turbine discharge ring (14... | 05/25/1982 |
| 4329097 | Adjustable positive means for locking studs and nuts having critical prestress value A pair of nut locking cups are engaged on the external surfaces of a pair of nuts and are constructed so that the outside radius of a cup is equal to one-half of the distances between adjacent studs to allow the cups to be placed on the nuts regardless of... | 05/11/1982 |
| 4324383 | Seat centerline operated butterfly valve The actuator shaft of a butterfly valve rotates 90 degrees to open or close an associated flow interrupter. As the shaft rotates its 90-degree motion is imparted to associated link members and the flow interrupters that are operably connected to the shaft... | 04/13/1982 |
| 4319142 | Power generation unit for spillway gate structures A hydraulic turbine with water passageways and powerhouse for installation at a conventional spillway with gates includes a fabricated steel water passageway and cross beams which also serves as the lateral support between lifting devices which are operab... | 03/09/1982 |
| 4304550 | Apparatus for handling and utilizing system gas in a pyro-processing system Emission gas to be scrubbed of sulfur dioxide or the like has turbulent flow through a mixing vessel. At a mixing zone in the vessel, comminuted lime is fed into the gas and carried out of the vessel with the gas to a cyclone separator. A substantial port... | 12/08/1981 |
| 4300749 | Throttle valve A valve body is enlarged to contain the area of throttling vanes which are mounted on actuating shafts; the body is tapered along with the vanes to provide a loss of body area which is uniform to the throat section of the valve body; regulation of the van... | 11/17/1981 |
| 4292992 | Valve for handling solids capable of gas-pressure-tight closure against a gas pressure differential The valve of the present invention includes an inflatable seal element located in the housing seat and a gas-pressure-purge arrangement. The inflatable seal element is inflated by means of pressurized fluid to grow in size and close up clearances between ... | 10/06/1981 |
| 4281230 | Anti-arc prod In a magnetic particle testing procedure, a spring loaded prod with contact points prevents arc strikes from occurring between the prod and a part under test. Positive pressure is applied to the prod which engages the contacts before current can flow to t... | 07/28/1981 |
| 4257574 | Spherical valve seal A fixed upstream seal is provided having a variable geometry to provide a maximum body thickness at points of large deflection and a minimum body thickness at points of small deflections with the body thickness varying in progressively from maximum to min... | 03/24/1981 |
| 4251280 | Process for handling and utilizing system gas in a pyro-processing system In a mixing zone of a mixing vessel, comminuted lime is fed into emission gas and carried out of the vessel with the gas to a cyclone separator. Gas from a cyclone is passed through a quench zone and excess dust from the cyclone is introduced into the gas... | 02/17/1981 |
| 4248404 | Dual seal butterfly valve A wafer type butterfly valve having a spherical segment body interior contoured to receive a disc seal having upstream and downstream seals. The seals are configured to fit disc grooves and are curved to fit the body contour. Mechanical retainers are prov... | 02/03/1981 |
| 4247250 | Fabricated pump casing A fabricated split pump casing is disclosed in which the suction chamber and discharge chamber are both on the same side of the casing section. The volute is fabricated from a plurality of sections with the minor section of the volute being located within... | 01/27/1981 |
| 4244705 | Triple rotary gas lock seal system for transferring coal continuously into, or ash out of, a pressurized process vessel A multiple rotary gas lock apparatus using a buffer seal gas is disclosed to enable the transfer of solid materials into or out of a pressurized process containing high temperature, flammable or toxic gases. The buffer seal gas, has a pressure higher than... | 01/13/1981 |
| 4236887 | Method and apparatus for handling and utilizing system off-gas in a pyro-processing system Preheat gas is recycled to a booster heater that communicates with the preheat chamber with excess gas being directed to a quench chamber. From the quench chamber gas passes to a dust separator with the cleansed gas being utilized in low- and high-tempera... | 12/02/1980 |
| 4229643 | Consumable welding electrode A consumable welding electrode, a method of electroslag welding using such an electrode, and an electroslag weld deposit produced by the use of the welding electrode and welding method of the invention. The welding electrode, while not restricted thereto,... | 10/21/1980 |
| 4228342 | Electroslag weld deposit A consumable welding electrode, a method of electoslag welding using such an electrode, and an electroslag weld deposit produced by the use of the welding electrode and welding method of the invention. The welding electrode, while not restricted thereto, ... | 10/14/1980 |
| 4228337 | Method of electroslag welding A method of electroslag welding for use in the electroslag welding of high tensile strength members formed of low alloy steels of the family of steels which includes American Society of Testing Materials designation ASTM A516-76. The welding electrode use... | 10/14/1980 |
| 4221574 | Apparatus for removing particulates from the exhaust gases generated in drum mixers and aggregate dryers A wet type gas scrubber is disclosed and utilizes a ring dam or deflector ring around the periphery of the scrubber's inner tube to intercept and restrain the particulate Laden water as it flows along the outer surface of the inner tube. The deflector pre... | 09/09/1980 |
| 4219772 | Apparatus for nondestructive testing of small blind bores utilizing the dry magnetic particle method A pair of electrical prods along with a powder supply gun are incorporated in a single portable frame member which is easily insertable into a relatively small blind bore; prod tension against the bore wall is adjustable by varying spring plunger tension;... | 08/26/1980 |
| 4214707 | Trap-port for rotary kilns A labyrinth port structure minimizes entrapment of fine particulates in the port piping of a rotary kiln and maintains a self-flushing operation which permits turbulent mixing resulting in particulate removal from port cavities.... | 07/29/1980 |
| 4210408 | Eccentric pin positive locking device for hydraulic turbine wicket gates A hydraulic turbine wicket gate operating assembly including an eccentric pin having a separate hexagonal spacer attached provides a novel means for turning the eccentric pin and fixing it from rotation beyond a desired point. With the arrangement, a sing... | 07/01/1980 |
| 4208166 | Adjustable wear ring for a centrifugal pump An adjustable wear ring between a pump impeller and the pump casing is provided which is rotatable relative to the casing for effecting an adjustment of the wear ring with respect to the impeller to restrict leakage between the high pressure and low press... | 06/17/1980 |
| 4200514 | Method and apparatus for the aligning and installation of wicket gate bushings in a unitized stay ring-discharge ring of a hydro-turbine machine Bushing and sleeve assembly are attached in an alignment fixture and placed in the stay ring-discharge ring. An internal pilot bearing is placed in the headcover to accommodate an aligning bar which is lowered through the headcover and pilot. The lower en... | 04/29/1980 |
| 4194528 | Spherical valve seal piston detecting and locking arrangement A housing in which a locking tube is contained is threaded into a suitable threaded opening in the valve casing with the opening communicating with the interior of the casing adjacent the seal piston; the locking tube is threaded within the housing and is... | 03/25/1980 |
| 4192482 | Hydraulic actuator to provide both rotary and linear motions to a movable valve A hydraulic cylinder is provided with pistons to provide both rotary and a linear motions; utilization of a built in check valve traps fluid pressure to sustain piston in a desired operating position.... | 03/11/1980 |
| 4188287 | Slow speed wedge bar flotation mixing device Aeration flotation bar comprising a shaft mounted in a tank for rotation about a vertical axis and having a plurality of wedge configured bar members. Air through the shaft is distributed lengthwise through each wedge bar member simultaneously and from ea... | 02/12/1980 |
| 4187032 | Hydraulic prestressing device for shear lever bolts A hydraulic cylinder and piston mechanism which acts on opposing levers with a fulcrum bar interposed to prestress a shear lever bolt of a gate restraining mechanism of a hydraulic turbine without reacting on any other component.... | 02/05/1980 |
| 4182397 | Continuous casting mold and means for securing mold liners therein An improved continuous casting mold and means for securing the mold liners wherein vertical cooling water passages which in cross-section present a dovetail configuration are machined in the back side of the mold liner plates. The cooling water passages a... | 01/08/1980 |
| 4177610 | Apparatus for machining large heavy workpieces in situs Apparatus for machining an extremely large and very heavy workpiece, such as a runner of a hydro-turbine machine, in situs. The hub of the hydro-turbine runner is utilized as a support for a rotatable beam which is arranged to carry a depending grinding o... | 12/11/1979 |
| 4177999 | Infinitely adjustable bearing seal for non-parallel surfaces A pair of complementary tapered washers are engaged on a bolt that passes through a first member and is threadedly engaged in a second member; surfaces of the bolt head surface is not parallel to the surface which is to engage and a full bearing base is e... | 12/11/1979 |
| 4171950 | Apparatus for re-aiming a coal burner pipe in a rotary kiln Apparatus is disclosed in which a coal burner pipe may be re-aimed into a rotary kiln. The burner pipe extends through a suitable opening provided in the associated hood of the kiln, with the discharge end of the burner pipe being so disposed as to discha... | 10/23/1979 |
| 4166528 | Longitudinal support for a conveyor belt Individual longitudinal channels equipped with closely spaced wheels running the full length of the conveyor and suspended in a natural catenary fashion by cross support cables is disclosed.... | 09/04/1979 |
| 4164864 | Method and apparatus for supporting a sensor in a normally inacessible area of a machine A noncontacting axial position monitor or probe is carried on an extending rod which reaches into a normally inaccessible area and there is provided adjusting means operable to effect an internal position adjustment of the probe externally of the device b... | 08/21/1979 |
| 4161444 | Mechanical means for increasing the grade of a flotation cell concentrate A flotation cell having a submerged screen for breaking up mineral-laden air bubbles to reduce refuse entrainment and a rotating rake to break up the surface froth to return mechanically entrapped refuse which has escaped the screen.... | 07/17/1979 |
| 4147451 | Apparatus for valve installation in a flume A valve installation for a flume wherein a preinstalled liner is cast in place at the time of flume construction. The valve body with sealing gasket is later installed within the liner. Wedge plates and associated force-applying bevelled washers are insta... | 04/03/1979 |
| 4129036 | Alignment indicator for roller-type support A positive-acting mechanical device to constantly monitor the amount of thrust force on the bearing housing end plate of a roller support for a rotary kiln.... | 12/12/1978 |
