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| Number | Title | Issue Date |
| 4793665 | Storing and dispensing system The invention is disclosed as being embodied in the stationary storing and dispensing system for substantially square or rectangular objects and comprises at least two shelves (S) each having a bottom (20), a ramp (32), a finger guide (26), and and articl... | 12/27/1988 |
| 4772077 | Cell with push button ejector mechanism A storing and dispensing sytem for square or rectangular objects such as computer media cartridges and packages. The system includes a housing (10) forming a plurality of stalls (16), and an ejector (18) associated with each stall (16) and pivotally mount... | 09/20/1988 |
| 4772149 | Sheet binder mechanism A binding mechanism is provided having a plurality of carriers, each supporting a pair of engaging rods, slidably mounted lengthwise of a spine. A pinion member interfacing a plate with gear teeth mounted to one of the pair of engaging rods allows for mov... | 09/20/1988 |
| 4765758 | Laminated bearing A sound isolating bearing has concentric inner and outer housings made of steel with a concentric shim between the inner and outer housings sandwiched by layers of a resilient elastomer. The longitudinal cross section of the shim is convex on both inside ... | 08/23/1988 |
| 4762379 | Blow molded panels and a mold and method of making them There is disclosed a hollow, blow molded plastic panel for door and drawer fronts for storage cabinets having a recessed handle (16) of substantial keystone configuration in a surface (2). Also disclosed is a mold having a movable core insert (58) for for... | 08/09/1988 |
| 4756441 | File system support assembly Disclosed is a removable, replaceable assembly for supporting a file system of the type which has a plurality of separator cards each of which is centrally apertured near its bottom to receive a locking rod. The cards are assembled behind the other. The a... | 07/12/1988 |
| 4754958 | Motion snubber A motion snubber comprises layers of elastomeric and substantially inextensible material stacked one on top of the other between a base and mounting plate, and is characterized by a rigid restraining pin disposed in a bore within the stack so as to restra... | 07/05/1988 |
| 4750723 | Device for supporting workpieces An adjustable device for supporting workpieces having two sets of relatively movable interleaved friction plates, one set attached to and movable with a work supporting plunger, the other being relatively stationary with respect to the plunger. The plunge... | 06/14/1988 |
| 4742998 | Active vibration isolation system employing an electro-rheological fluid An active vibration isolation system employing an electro-rheological fluid comprises a damper having a servovalve fluidically coupling a load supporting actuator to an accumulator. The servovalve includes an orificed plate arrangement, across which a vol... | 05/10/1988 |
| 4730861 | Finger gripper with state indicator A positive indication of the closure state of a fingered gripper is provided by a sensor having a first element mounted for motion responsive to the primary finger driver and a second element operable in conjunction with the first element to provide, betw... | 03/15/1988 |
| 4714865 | Overload protection device An overload protection device adapted to be secured between a robot arm and a tool, comprises a floating piston (20) within a cylinder (18). Hall effect sensors (124) are spaced around the cylinder wall and mating magnets (40) are spaced around the piston... | 12/22/1987 |
| 4633116 | Sub-slot cover for dynamoelectric machine In a dynamoelectric machine including a rotor of electrically conductive material having a plurality of axially extending slots for receiving electrical conductors, there is provided apparatus in each slot for electrically insulating the conductors from t... | 12/30/1986 |
| 4624586 | Bearing lubrication device A bearing for a large rotating shaft machine is subject to differing conditions of operations. In order to accommodate these differing conditions of operation, the lubricant flows throughout the bearings may have to be changed. The prior art method of cha... | 11/25/1986 |
| 4604028 | Independently actuated control valves for steam turbine A control system for a steam turbine employs complementary-sized nozzle groups receiving steam in a sequence which employs the smallest possible sized group receiving steam from a control valve of the smallest possible capacity as the governing valve. All... | 08/05/1986 |
| 4598551 | Apparatus and method for controlling steam turbine operating conditions during starting and loading A steam turbine-generator system includes a reheater bypass valve which cooperates with both a high- and low-pressure bypass valve in the early stages of turbine loading to divert steam in a bypass flow from a high-pressure turbine to the input of a rehea... | 07/08/1986 |
| 4582749 | Slot armor for dynamoelectric machines A slot armor for insulating the slots in the rotor of a dynamoelectric machine from the windings contained in the slots includes a high-dielectric film on at least one surface thereof. A layer of a tough lubricating solid is coated on the exterior surface... | 04/15/1986 |
| 4582027 | Economizer recirculation for low-load stability in heat recovery steam generator A recirculation apparatus is employed to recirculate a portion of the feedwater in a vertical-tube economizer to reduce the likelihood of reverse flow and steaming at startup and/or low load. A recirculation valve, opened at low load, directs part of the ... | 04/15/1986 |
| 4571151 | Liquid injection control in multi-stage compressor Liquid injection into the interstage steam flow in a multi-stage compressor is controlled by calculating a saturation temperature of the fluid in the interstage and then controlling the liquid flow to reduce the incoming fluid temperature to a value a pre... | 02/18/1986 |
| 4564779 | Dynamoelectric machine stator using cylindrical keybars Keybars for affixing stator core laminations to annular web plates of a stator frame include a cylindrical portion and a dovetail portion. The cylindrical portion is closely fitted within accurately bored axially aligned circular holes in the annular web ... | 01/14/1986 |
| 4560896 | Composite slot insulation for dynamoelectric machine In a dynamoelectric machine, the rotor comprises a solid steel drum formed with axially extending channels which carry electrically-conductive windings. These windings are electrically insulated from the rotor body by so-called slot insulation. The presen... | 12/24/1985 |
| 4552292 | Heat exchanger A heat exchanger includes a number of fluid carrying tubes disposed in a hot gas flow path. One arrangement of heat exchanger tubes includes a plurality of finned serpentine tubes parallel to one another and connected to an inlet header and an outlet head... | 11/12/1985 |
| 4549740 | Coupling guard seal assembly A coupling between two shafts surrounded by a coupling guard seal assembly to prevent the leakage of fluid from out of the coupling. The coupling guard includes two coaxial closed overlapping surfaces otherwise described as inner and outer cylinders. The ... | 10/29/1985 |
| 4509238 | Method for fabricating a steam turbine diaphragm Blades in the steam path of a steam turbine diaphragm are assembled into slots in full circular bands and are structurally bonded thereto by welding. After stress relief, the bands are each separated into two 180 degree pieces by line cuts which pass betw... | 04/09/1985 |
| 4499756 | Control valve test in cam controlled valve system A test apparatus and method tests for closure of ganged, cam operated main control valves in a steam turbine. Cam actuation of a set of upper main control valves is separated from cam actuation of a lower set of main control valves. A test controller actu... | 02/19/1985 |
| 4494207 | Dual turbine controller Primary and secondary controllers both receive independent digital representations of shaft speed. Only one of the outputs of the two controllers is used. In order to detect a fault and isolate it to one of the two controllers, comparison is performed on ... | 01/15/1985 |
| 4494208 | Bumpless switching of valve drive in a turbine control system Outputs of two independent controllers are available to control a valve actuator in a turbine control system. One of these valve drive signals is applied to the valve actuator while the other is applied to a termination. When a fault is detected in the ac... | 01/15/1985 |
| 4493608 | 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 generated based on the temperature change and flow of water passing through the flash tank and... | 01/15/1985 |
| 4484137 | Wide dynamic range shaft speed sensor A digital shaft speed sensor modifies a clock frequency and counting period to provide a speed signal having wide dynamic range with adequate resolution. The division ratio of a programmable divider counting pulses from a shaft encoder is modified by a ce... | 11/20/1984 |
| 4474013 | Overspeed anticipation circuit for steam turbine speed control An overspeed detection circuit for producing an overspeed trip signal for shutting off a supply of motive fluid to a prime mover upon the prime mover exceeding an overspeed trip limit includes a differentiating circuit effective to differentiate a speed s... | 10/02/1984 |
| 4474012 | Steam turbine pressure rate limiter A steam pressure rate limiter for a steam turbine system reduces the setting of a steam control valve when a rate of decrease in steam pressure is detected which exceeds a threshold value of rate of decrease. A floor on control of the steam control valve ... | 10/02/1984 |
| 4473536 | Catalytic pollution control system for gas turbine exhaust A steam and gas turbine (STAG) plant employs a catalyst in a heat recovery steam generator to react injected ammonia with NOx from the combustor of the gas turbine to reduce atmospheric emission of NOx from the system. Rapid control ... | 09/25/1984 |
| 4473537 | Ammonia control system for NOx emission control for gas turbine exhaust A steam and gas turbine combined cycle plant STAG* employs a catalyst in a heat recovery steam generator to react injected ammonia with NOx from the combustor of the gas turbine to reduce atmospheric emission of NOx from the system. ... | 09/25/1984 |
| 4469994 | Reference signal circuit In the control of prime movers, automatic and manually generated input signals should be able to be entered into the control system without undue control disturbance or perturbation. Likewise should an automatic signal fail, the switch to a last valid sig... | 09/04/1984 |
| 4469971 | Stator slot wedge assembly with axial spring retainer A stator wedge assembly provides a spring force to assist in retaining a conductor securely in a slot, without requiring a separate spring. Two ends of the assembly are received in a dove-tail at the mouth of a slot. A central spring section extends betwe... | 09/04/1984 |
| 4464577 | Turbine speed control A control system for a prime mover may include a proportional speed control, a primary overspeed control and an emergency overspeed control. The proportional speed signal is obtained from select highest value logic, whereas overspeed and loss of speed sig... | 08/07/1984 |
| 4443725 | Dynamoelectric machine stator wedge In a dynamoelectric machine having a rotating field and a stationary stator core, electrical conductors are contained within axially-extending radial slots which are part of the stator core construction. These electrical conductors are subject to electrom... | 04/17/1984 |
| 4437809 | Turning gear interlock Rotor turning gears for turbines selectively engage with and disengage from rotor ring gears to provide for rotation of the turbine rotor when it would otherwise cease rotation. This is to equalize the effect of thermal stresses on the rotor as it cools d... | 03/20/1984 |
| 4437313 | HRSG Damper control A method of and apparatus for controlling a steam turbine system for a combined cycle power plant using measured parameters to control the position of dampers regulating heat flow to steam generating equipment so as to limit thermal stresses, drum level s... | 03/20/1984 |
| 4427058 | HRSG Sidewall baffle In a non-contact heat exchanger such as a heat recovery steam generator, the performance efficiency is dependent upon full utilization of the available hot gas flow. In a heat recovery steam generator, hot gas is channeled past fluid carrying tubes whereb... | 01/24/1984 |
| 4412422 | Apparatus and method for controlling a multi-turbine installation The invention is practiced by providing a plurality of turbine-driven systems each producing an output proportional to a respective control signal, means for generating a respective first output signal for each of the turbine-driven systems proportional t... | 11/01/1983 |
