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| Number | Title | Issue Date |
| 4680039 | Self-contained dust collector with quick release adapter duct A self-contained dust collector which includes a quick release adaptor duct mounted between a filter unit and a storage receptacle for conveying dust to the receptacle with the quick release adaptor duct comprising a planar member having a central opening... | 07/14/1987 |
| 4648561 | Grinding mill apparatus A grinding mill apparatus is disclosed comprising a grinding mill having a feed end head and a discharge end head and a shell disposed between said heads and secured thereto for rotation with the head. A feed end bearing and a discharge end bearing are pr... | 03/10/1987 |
| 4610599 | Apparatus for controlling a hydraulic turbine An apparatus for controlling a hydraulic turbine is disclosed comprising a hydraulic circuit to control the positioning of turbine runner blades and a hydraulic circuit to control the positioning of turbine wicket gates. The runner blade hydraulic circuit... | 09/09/1986 |
| 4599854 | Adjustable draft tube An adjustable draft tube is disclosed for a hydraulic turbine installation. The draft tube includes a pair of fabricated box piers which are positioned in a tailwater with the turbine outlet disposed between the piers. The piers are anchored to a tailwate... | 07/15/1986 |
| 4600084 | Hydraulic manifold for two and three stage masts A hydraulic manifold is provided on a primary mast section which maximizes the commonalty of hydraulic components used in the hydraulic lift control systems of two and three stage mast assemblies used in lift trucks. Two and three stage mast assemblies ar... | 07/15/1986 |
| 4598875 | Portable crushing and screening plant This invention relates to a vehicle-mounted closed circuit portable crushing and screening plant in which a plurality of units for processing material to be crushed, such as a grizzly, a primary crusher, and a secondary crusher are mounted to discharge th... | 07/08/1986 |
| 4595402 | Suspension system for mounting filter bags in a baghouse A suspension system for mounting filter bags in a baghouse is disclosed featuring a pretensioned spring having an amount of pretension which will prevent spring displacement when subjected to a first loading force which is the combined weight of the filte... | 06/17/1986 |
| 4593791 | Automatic sequencing circuit for lift cylinders The carriage lift and mast lift cylinders are sequentially extended and retracted in the reverse order of pressure required to actuate them by a sequencing valve to insure proper sequential movement of the lift carriage and extension of the mast sections.... | 06/10/1986 |
| 4585268 | Overhead guard for lift trucks of different lengths An overhead guard is provided for counterweighted lift trucks of different lengths. The overhead guard has a top portion supported at its front end by a pair of laterally spaced front legs extending downwardly to attaching points on the front of the truck... | 04/29/1986 |
| 4583912 | Damped dynamic vibration absorber A pump is disclosed having a damped dynamic vibration absorber for attenuating pump vibration in response to a periodic disturbing force generated when the pump is in operation. The vibration absorber comprises elastic means, an annular mass and an energy... | 04/22/1986 |
| 4576618 | Self-cleaning collecting device A self-cleaning collecting device for cleaning a dirty gas stream including a flow-through housing having a dirty gas inlet at the base of the housing and a clean gas outlet at the top of the housing interconnected by a gas treating passage adapted to dir... | 03/18/1986 |
| 4573827 | Laterally movable powerhouse A hydraulic turbine installation is disclosed for a site comprising a dam having a floor and opposing sidewalls defining a spillway. The installation comprises a frame member which slideably engages the spillway floor on a downstream side of the dam. The ... | 03/04/1986 |
| 4570806 | Tote pan and warehouse rack structure therefor A warehouse system employs a crane guided for movement along an aisle with storage racks on opposite sides thereof and mounting a carriage for vertical reciprocation thereon. An extractor supported on the carriage has a pair of narrow extensible arms whic... | 02/18/1986 |
| 4566166 | Method for manufacturing a stay ring bearing stationary guide vanes for a nongated turbine A method for manufacturing stay rings for a family of hydraulic turbine installations is disclosed. The stay ring comprises a plurality of stay vanes axially extending between two concentric ring members. Stay vanes are formed from flat plates and aligned... | 01/28/1986 |
| 4560396 | Down flow filter panel dust collector A dust collector forming vertically oriented filtering panels with downward flow of dirty gases and a quiet zone below the panels for trapping particulates of dust that have been separated from the gases and passed into the quiet zone.... | 12/24/1985 |
| 4557740 | Weather louver A weather louver for separating particles from a gaseous medium and primarily to separate mist and droplets of moisture from an air stream. This device includes parallel passages with moisture traps and collectors having drainage troughs to separate the m... | 12/10/1985 |
| 4555255 | Corner connector clip in an air filter grid An invertible corner connecting clip is disclosed having an out-corner unit and an in-corner unit connected together in spaced parallel right angle relation to define pockets for receiving side walls of main and cross support members of a ceiling latticew... | 11/26/1985 |
| 4553638 | Hose tensioning device A hose tensioning device is provided to suitably tension a flexible hydraulic hose used on a lift truck so as to reduce damage that might otherwise occur should the hose become slack. The hose tensioning device serves as a hydraulic connector and its oute... | 11/19/1985 |
| 4552058 | Air flow control system having minimum variation in volume An air volume control ventilation system which minimizes variation in air volume flowing through the system has a fan for drawing air through fixed-resistance filter means including a roll filter, an electrostatic filter, and a high efficiency filter; a v... | 11/12/1985 |
| 4545793 | Air filter system with supporting and sealing grid A filter supporting and sealing arrangement including a filter support grid having support beams with each beam defining parallel channels carrying a fluid sealant. The grid defines filter openings receiving filters with peripheral flanges on each filter ... | 10/08/1985 |
| 4526591 | Electrode rapping arrangement An electrode rapping arrangement for cleaning the collecting electrodes of a pair of serially aligned electrode assemblies in an electrostatic precipitator. The rapping arrangement includes a shaft extending horizontally across the interior of the precipi... | 07/02/1985 |
| 4515524 | Draft tube for hydraulic turbine A draft tube for discharging fluid from a hydraulic turbine is disclosed as having a draft tube wall surrounding a discharge passage which diverges from a turbine runner to a discharge opening. The draft tube includes a first region downstream of the runn... | 05/07/1985 |
| 4513850 | Electrohydraulic power shift transmission system An electrohydraulic control system for a pair of hydraulically actuated vehicle transmission clutches operable to effect high and low speed ranges. High and low hydraulic clutch valves are pilot operated by a solenoid valve which delivers pressurized flui... | 04/30/1985 |
| 4513695 | Intercooler bypass return in an internal combustion engine An intercooler coolant circuit and an engine coolant circuit in an engine cooling system wherein the engine coolant bypass passage operates continuously as the intercooler coolant return passage.... | 04/30/1985 |
| 4513847 | Range shift and park lock control A single manually operated control lever is operable to operate a range shift mechanism and a park lock mechanism in a vehicle transmission. The control lever is pivoted to a pivot bracket on a first horizontal axis and the pivot bracket is pivoted to a s... | 04/30/1985 |
| 4506773 | Electrically controlled hydraulic clutch for a front wheel drive A rear wheel drive vehicle is converted to a four-wheel drive vehicle by operation of a hydraulically operated clutch which is controlled by a hydraulic valve. The hydraulic valve is spring biased to a clutch disengaged position and is hydraulically actua... | 03/26/1985 |
| 4506749 | Underhood muffler for tractor An underhood muffler mounted in the engine compartment of a motor vehicle supported on the turbo-charger and a resilient support supported on the engine.... | 03/26/1985 |
| 4505612 | Air admission apparatus for water control gate An apparatus is disclosed for admitting atmospheric air to a bounded volume of air on a downstream side of a crest gate where the bounded volume is defined by the gate and a curtain of water spilling over the gate. The apparatus comprises a plurality of r... | 03/19/1985 |
| 4503749 | Combine visor with environmental components A self-propelled agricultural harvester is provided with an operator's cab which has a combined roof and visor in which environmental components and accessories are mounted.... | 03/12/1985 |
| 4503727 | Transmission shift mechanism A transmission shift mechanism having straight line movement. The shift control operates a single shift rail carrying two shift forks to provide three speeds and a neutral position.... | 03/12/1985 |
| 4502270 | Crop divider with illuminated points A mobile agricultural harvester has a crop header at its forward end including a plurality of crop dividers. The crop dividers each include a forwardly tapering point portion terminating at its forward end with a tip. Either the tip or the point portion o... | 03/05/1985 |
| 4502348 | Hand and foot throttle control linkage A hand and foot throttle control linkage having independent operation of the throttle by either a hand or foot control. A return spring for the foot pedal is carried on the throttle linkage to return the foot pedal to its retracted position and to reduce ... | 03/05/1985 |
| 4502693 | Bushing seal with dual restricted fluid passages A bushing seal for a compressor for compressing wet chlorine. The bushing seal includes a bushing surrounding a rotary member of the compressor. Opposing surfaces of the shaft and the bushing define a first restricted fluid passage in communication with t... | 03/05/1985 |
| 4496282 | Reversible two-stage hydraulic machine A reversible two-stage hydraulic machine, or pump/turbine, is disclosed having a rotary shaft. A first-stage Francis-type runner is fixed to the shaft with a spiral casing surrounding the first stage runner for distributing water to the runner from an upp... | 01/29/1985 |
| 4488382 | Kiln ring grinding apparatus Apparatus for uniformly grinding the peripheral surface of a kiln ring of a rotating rotary kiln to axial flatness includes a grinder; an electrical motor for continually driving the grinder; a pneumatic cylinder for urging the grinder against the surface... | 12/18/1984 |
| 4489273 | Apparatus for measuring rotational velocity of a shaft An apparatus is disclosed for mounting a rotational signal transducer on a rotary shaft where the transducer generates a signal proportional to the shaft's rotational velocity. The apparatus includes a gear mounted for rotation with the shaft. A support p... | 12/18/1984 |
| 4476842 | Intercooler damper support An engine intercooler has an inlet passage receiving heated air from the turbocharger, an intercooler core and a plurality of outlet passages directing air to the engine cylinders. The housing of the intercooler is divided by the core into a plenum chambe... | 10/16/1984 |
| 4475641 | Double acting hydraulic accumulator for power shift transmission A double acting hydraulic actuator for operating in a power shift transmission. An accumulator operates with two hydraulic clutches to dampen surges in pressures and to store energy in the hydraulic system during operation of the hydraulic system.... | 10/09/1984 |
| 4475638 | Transmission brake and clutch A transmission brake mounted on a clutch collar for braking the drive shaft. The brake operates to brake the speed of rotation of the drive shaft when the clutch is in any of the high, low or neutral positions.... | 10/09/1984 |
| 4475876 | Oil purge system for cold weather shutdown of oil flooded screw compressor A system for purging the lubricating oil from the oil connecting lines (27, 31) and cooler (23) of an oil circulating system for a flooded type screw compressor (10) when the compressor (10) is shut down whereby the lubricating oil is forced into a reserv... | 10/09/1984 |
