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| Number | Title | Issue Date |
| 6964362 | Shock-absorbing system for fastener driving tools A combustion chamber assembly for use in a combustion-powered fastener driving tool, includes a cylinder body, a reciprocating probe assembly slidably disposed relative to the cylinder body between a first, extended position and a second, retracted position, and at ... | 11/15/2005 |
| 4787014 | Spoke mounted bicycle light A safety lighting device for a bicycle including a housing in which is located a self-contained light source which emits light through a lens; the housing also having a plate-like mounting apparatus wedged between pairs of overlapping spokes which allows ... | 11/22/1988 |
| 4756484 | Vertical shaft impact crusher with interchangeable crusher ring segments A vertical shaft impact crusher is provided comprising a housing, a rotor mounted within the housing for rotation about a vertical axis and propelling incoming rock outwardly against a crusher ring, wherein the crusher ring is comprised of segments each c... | 07/12/1988 |
| 4750679 | Apparatus for energy efficient comminution A method and apparatus of comminuting ore-like material to produce a disproportionately large volume of flakier product which is easily and more efficiently ground in a mill, wherein the method includes the application of a stream of liquid all around the... | 06/14/1988 |
| 4750681 | Apparatus for high performance conical crushing A conical crusher having a power draw of approximately 1,000 Hp and capable of being installed in a conventional crusher foundation is provided with an annular frame shell with support means capable of withstanding the higher than normal crushing forces, ... | 06/14/1988 |
| 4717110 | Adjustable signage system A signage system capable of supporting and displaying at least one variably sized sign is provided comprising a flat base; a blade-shaped support adapter engaging the base; an elongate, vertically-projecting support stem provided with a fixed crossbar at ... | 01/05/1988 |
| 4681033 | Drive system for belt press In a belt press of the type used to dewater heavy slurries, an improved belt drive system is provided. The upper belt is driven by at least two rollers, one of which is situated in the dewatering section wherein the upper and lower belts are squeezed and ... | 07/21/1987 |
| 4671464 | Method and apparatus for energy efficient comminution A method and apparatus of comminuting ore-like material to produce a disproportionately large volume of flakier product which is easily and more efficiently ground in a mill, wherein the method includes the application of a stream of liquid all around the... | 06/09/1987 |
| 4668387 | Deep submergence rotating biological contactor apparatus A wastewater treatment apparatus is disclosed in which a rotating biological contactor rotatably mounted on a horizontal shaft is deeply submerged in a wastewater tank, so that a substantial portion of attached biomass does not come into contact with the ... | 05/26/1987 |
| 4664243 | Conveyor roller and bearing assembly A conveyor roller and bearing assembly designed to rotate around a fixed shaft in a conveyor frame is disclosed having a polymeric roller constructed and arranged to minimize the generation of production noise and static electricity, a polymeric spherical... | 05/12/1987 |
| 4663042 | Polymeric sludge collector flight A hollow, polymeric sludge collector flight is provided having a sigma-shaped cross-section, including a wedge-shaped transverse indentation on its forward face, a vertically extending wear lip on its scraping edge, and a transverse gap on its rear face. ... | 05/05/1987 |
| 4663038 | Side channel clarifier A side channel clarifier for use in wastewater treatment devices employing the circulation of water in a tank having a circuitous path for the purposes of aeration and biological digestion of wastes, wherein the clarifier is mounted in the wall of the cha... | 05/05/1987 |
| 4659026 | Guard rings for vertical shaft impact crusher A vertical shaft impact crusher having a rotor mounted for rotation about a vertical axis on a vertical shaft supported by a central bearing, and an impeller mounted on that shaft so that rock fed into the crusher is caught by the spinning impeller and th... | 04/21/1987 |
| 4658638 | Machine component diagnostic system A machine condition diagnostic system is provided wherein machine components or their immediate surroundings are labelled with indicator materials. A normal level of indicators in the lubricant will be established. The lubricant is monitored and periodica... | 04/21/1987 |
| 4635366 | Polymeric shoe sizer A shoe sizer capable of measuring the feet of men or women and designed to be readily shipped by mail, comprising a base having a flat upper surface, an elongate slot, and a plurality of mounting recesses; a vertically-projecting heel portion having a mou... | 01/13/1987 |
| 4631974 | Polymeric split sprocket wheel A polymeric split sprocket wheel is provided having two mating portions that, when joined, form a split line at the junction of those portions, two side faces, a toothed outer rim and a central axial bore, and which is designed to be mounted on a relative... | 12/30/1986 |
| 4629559 | Vertical looped reactor tank with delayed air release feature An apparatus for use in an activated sludge process for treating wastewater wherein raw sewage or the like is mixed with activated sludge and the resulting mixture is circulated in a confined aerated tank (usually in the form of additional subsurface aera... | 12/16/1986 |
| 4629061 | Belt steering control system A belt steering control system for a belt press having a frame and a plurality of rolls around which a pair of belts passes, said system comprising a paddle-type belt edge position sensor lightly biased against the edge of the belt for sensing the actual ... | 12/16/1986 |
| 4622894 | Belt press load bearing measuring means In a belt press of the type used to dewater heavy slurries, an improved belt drive system is provided. The upper belt is driven by at least two rollers, one of which is situated in the dewatering section wherein the upper and lower belts are squeezed and ... | 11/18/1986 |
| 4620927 | Polymeric microscreen support wheel and assembly A microscreen support wheel and assembly is provided comprising a polymeric support wheel having a crowned tread surface, an annular stress relief groove cut into each of its vertically flat, substantially parallel side faces and an axial bore designed to... | 11/04/1986 |
| 4620185 | Wearing part diagnostic system employing tracer elements A machine condition diagnostic system is provided wherein machine components are labelled with indicator materials. A normal level of indicators in the lubricant will be established. The lubricant is monitored and periodically or continually sampled to de... | 10/28/1986 |
| 4604206 | Staged anaerobic reactor An industrial waste anaerobic digestion process takes place in a digester having separate sections within the digester, in which the acid forming and gas forming phases of the digestion process can occur separately under conditions optimized for each phas... | 08/05/1986 |
| 4601412 | Polymeric grease gun A polymeric grease gun comprising a tubular body of polymeric material which defines a chamber for containing grease, a forward end cap having a grease pump, pump lever and a nozzle, a polymeric rear end cap, and a plunger for urging grease forward into t... | 07/22/1986 |
| 4595499 | Gravity belt thickener and belt press combination A belt press for use in removing water from sewage sludge, and including a frame, a pair of belts for compressing sludge material therebetween, the said belts being water-permeable whereby water in said sludge may drain through said belts, and a gravity b... | 06/17/1986 |
| 4584936 | Belt press frame A belt press for dewatering slurries is described having a frame designed to minimize the time, effort and frame stress heretofore encountered in the replacement of endless belts, said press comprising a rigid frame comprised of essentially parallel horiz... | 04/29/1986 |
| 4579061 | Spike driving machine including improved rail clamping apparatus A spike-driving machine for use in driving spikes into railroad ties and including a rail clamping apparatus for securing the machine to the rails while spikes are being driven into the rails. The rail clamping apparatus can employ only a single hydraulic... | 04/01/1986 |
| 4575014 | Vertical shaft impact crusher rings A vertical shaft impact crusher is provided, having a cylindrical tank in which the rotor is mounted for rotation about a vertical axis and for receiving rock fed axially from above and having impeller shoes for accelerating and throwing the rock outward ... | 03/11/1986 |
| 4563282 | Wastewater treatment plant and method A method and apparatus for increasing the capacity of an activated sludge wastewater treatment plant which utilizes microscreens in conjunction with rotating biological contactors that are placed in the primary settling tank, the aeration tank and the fin... | 01/07/1986 |
| 4560113 | Convertible vertical shaft impact crusher A vertical shaft impact crusher is provided comprising a housing, a rotor mounted within the housing for rotation about a vertical axis and having a rotor for propelling incoming rock outwardly against a breaker ring to be crushed, wherein the crusher is ... | 12/24/1985 |
| 4555340 | Excess overflow orifice tubes A final clarifier for a sewage treatment plant has a peripheral feed influent channel with lower distribution ports and is also provided with tubes to minimize the headloss in the clarifier. The minimum headloss tubes are set to allow the basin to operate... | 11/26/1985 |
| 4549962 | Rotating biological contactor A rotating biological contactor is formed about a polygonal shaft. The contactor includes a hub formed of a series of hub rings disposed side by side along the length of the shaft with each hub ring formed of hub segments which are joined end to end. In o... | 10/29/1985 |
| 4544490 | Method and system for recovering coal fines from pipe line coal slurry A method and system for dewatering coal fines from the centrate of a pipeline slurry centrifuge, to recover the coal and purify the water, includes blending the centrate from the centrifuge with slurry from the pipeline in the proportion of about 4:1. The... | 10/01/1985 |
| 4544061 | Belt press A conveyor belt tensioning system having two fluid piston and cylinders units on each lateral side of the belt. The units are parallel to each other and are attached to a tensioning roll. A pair of cables are attached to both of the pistons and pass aroun... | 10/01/1985 |
