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| Number | Title | Issue Date |
| 5424593 | Generator rotor cooling Difficulties in cooling the rotor (28) of a dynamoelectric machine carrying a rotating rectifier (54) are avoided by providing a coolant inlet 68 extending to the interior of a rectifier housing 50 through which the coolant may flow to emerge from a port ... | 06/13/1995 |
| 5360059 | Frame for a vehicular radiator The high cost of providing a heavy duty radiator is minimized in a radiator having a core and tank assembly 22 including a heat exchanger core 24, a pair of spaced headers 26, 28, a pair of spaced side pieces 34 on each side of the core 24, and a pair of ... | 11/01/1994 |
| 4930730 | Neutral position locking system for aircraft control surfaces An automatic neutral position locking system for a control surface of an aircraft. A hydraulic prime mover is provided for moving the control surface. A locking device is capable of locking the control surface against movement. A ratchet-and-pawl device i... | 06/05/1990 |
| 4930306 | Reducing carbon buildup in a turbine engine Carbon buildup in a turbine engine including a compressor 16 coupled to a turbine wheel 22 mounted for rotation about an axis and having a nozzle 24 disposed to direct gas at the turbine wheel 22 to drive the same, an annular combustor 26 disposed about t... | 06/05/1990 |
| 4928479 | Annular combustor with tangential cooling air injection The combustion dynamics and efficiency of a gas turbine having an annular combustor 26 provided with fuel injection nozzles 50 that inject fuel generally tangentially is improved by providing the walls 32, 34, 39 of the combustor 26 with cooling air film ... | 05/29/1990 |
| 4926630 | Jet air cooled turbine shroud for improved swirl cooling and mixing Warping of the rear turbine shroud 54 and the resulting cracking of turbine nozzle vanes 24 may be eliminated in a radial inflow turbine having an annular combustor 30 with a radially outer wall 32 opening on a compressed air plenum 48 by locating a plura... | 05/22/1990 |
| 4926908 | Pressure relief and vacuum vent valve A pressure relief and vacuum vent valve includes a valve body defining a cylinder having an inwardly facing valve seat. A valve piston is positioned in the cylinder and includes an annular closure portion axially movable toward and away from the valve sea... | 05/22/1990 |
| 4920758 | Refrigerator temperature responsive air outlet baffle An air circulation system for a refrigeration apparatus provides a controllable baffle for selectively opening or closing dual output ports. Particularly, the refrigeration apparatus includes an evaporator and an evaporator fan providing flow of refrigera... | 05/01/1990 |
| 4920633 | Method of manufacturing commutator assemblies A commutator shell suitable for receiving a molded commutator core is fabricated by providing an elongated ribbon of electrically conductive material. The ribbon is passed through a set of rollers to form a plurality of relatively shallow preliminary groo... | 05/01/1990 |
| 4920740 | Starting of turbine engines The turbine engine may be started without the use of start injectors by a method including the steps of initiating rotation of a compressor and turbine wheel by applying an external angular accelerating force thereto, introducing fuel through a minority o... | 05/01/1990 |
| 4915593 | Fluid supply system with turbine driven start pump The use of a single main centrifugal fuel pump for supplying fuel to an aircraft gas turbine engine has advantages over other known systems, however a problem has existed in that the centrifugal pump, when driven in a fixed ratio to the engine speed, cann... | 04/10/1990 |
| 4915591 | Reciprocating pump and control using outlet valve position sensors The pump head liner of a small-size precision reciprocating metering pump, which has its application particularly in High Performance Liquid Chromatography (HPLC), is made of transparent material, preferably of synthetic sapphire or monocrystalline zircon... | 04/10/1990 |
| 4911551 | Apparatus for determining the real or virtual distance of a light source from a measurement plane The measuring apparatus serves for measuring the distance of an object from a measurement surface. The apparatus contains an illumination unit, which is preferably a laser. Furthermore the apparatus contains an optical image reproduction system with which... | 03/27/1990 |
| 4911330 | Service vehicle with dispensing system A service vehicle includes a frame (10) on which a material dispensing system is mounted. The dispensing system includes reservoirs (30, 32) and (34) for various lubricants or the like and pumps (46) for pumping material out of the associated reservoirs (... | 03/27/1990 |
| 4911508 | Cabinet with foot pedal-operated door opener A cabinet structure having an improved user-mountable foot pedal-operated door opener. The pivot rod of the door opener may be mounted by the user to brackets previously mounted to the cabinet by the manufacturer, permitting completed installation of the ... | 03/27/1990 |
| 4909363 | Unidirectional no-back device A unidirectional no-back device having an input shaft and an output shaft and grounded releasable brake structure for holding the output shaft against rotation. A drive train between the input and output shafts has first and second ball and ramp structure... | 03/20/1990 |
| 4909301 | Method of making a bearing A method of making a bearing composed of a bronze preform having aluminum or aluminum alloy cast thereabout. The method includes the step of placing the bronze preform in a mold so as to be supported at one end thereof. The bronze preform is formed of a b... | 03/20/1990 |
| 4908565 | Power generating system A power supply system for developing electrical power from variable-speed motive power produced by a prime mover includes a differential speed summer having a first shaft coupled to the prime mover and further having second and third shafts coupled to fir... | 03/13/1990 |
| 4907621 | Bladder-type accumulator with movable cup-shaped sensor A guide projecting into a bladder is provided on a plug of a vessel body. A cup-shaped sensor is slidably provided on the guide, and an element for actuating a switch is provided on the cup-shaped sensor. The cup-shaped sensor is caused to slide along the... | 03/13/1990 |
| 4907832 | Secondary locking mechanism A secondary locking mechanism having a lock mountable to a sliding closure, such as a sliding window or sliding patio door, and a stop block mountable to a frame member which mounts the sliding closure. The lock has a pivotable stop arm which is spring-re... | 03/13/1990 |
| 4906356 | Material classifying apparatus A material classifying apparatus for separating material into at least overs and fines. The apparatus includes a material receiving housing supporting one or more vertically spaced separator screens. When more than one separator screen is used, the lowerm... | 03/06/1990 |
| 4905930 | Bait casting fishing reel A casting type fishing reel is disclosed and includes a spool having a transverse spool shaft and a frame about the area of the spool. The frame includes a plurality of spacer posts joining a pair of side frame plates and interengaged to maintain the fram... | 03/06/1990 |
| 4906166 | Liquid coolant circulating system employing intergrated pump/accumulator An integrated pump and accumulator assembly for use in a system circulating a liquid coolant or the like. A housing defines a pump chamber and an integral closed accumulator chamber. A pump is disposed in the pump chamber and includes a coolant circulatin... | 03/06/1990 |
| 4904232 | Power transmission belt A multiribbed power transmission belt having an inner portion of the compression section thereof defined by arcuate side surfaces converging inwardly. In one form, the side surfaces are circular. The outer portion of the compression section is defined by ... | 02/27/1990 |
| 4903545 | Hydrostatic transmission center section An integrated hydrostatic transaxle having a common housing for a hydrostatic transmission and a pair of oppositely-extending differentially-connected axles to have the common housing provide a common sump therefor and with a specifically-shaped center se... | 02/27/1990 |
| 4903501 | Refrigerator air control heated baffle An air baffle for a refrigeration apparatus is provided with means for preventing freeze up of the baffle. The baffle includes a fixed plate and a movable plate each having corresponding apertures therethrough for permitting the control of air flow to a f... | 02/27/1990 |
| 4901524 | Staged, coaxial, multiple point fuel injection in a hot gas generator Improved performance in a hot gas generator is achieved by disposing a multiple port fuel injector 42 having three spaced fuel discharge ports 46, 48, 49 on the longitudinal axis 28 of a vessel 18 having a narrow inlet 22, an opposite narrow outlet 14 and... | 02/20/1990 |
| 4899815 | Tank retaining strip for heat exchangers Improper assembly and/or dissociation due to improper handling of a tank 10 to header plate 14 joint in a heat exchanger is avoided through the use of a retaining strip 50 having fingers 54 receivable in slots 36 in an upstanding flange 26 surrounding a s... | 02/13/1990 |
| 4899538 | Hot gas generator Carbon build-up in a hot gas generator is avoided in a construction including a vessel 24 having a narrow inlet end 26, a narrow outlet end 28 and an intermediate, relatively wide, combustion chamber 30 by either disposing a heat shield 50 on the interior... | 02/13/1990 |
| 4899536 | Starting system for a turbine engine Difficulties in starting turbine engines 10 at high altitudes are avoided in a starting system which includes a combustor 34 having a gas outlet 32 adapted to be in communication with a turbine engine nozzle 28, a fuel inlet 36, and an oxidant inlet 38 so... | 02/13/1990 |
| 4900233 | Reciprocating compressor providing a lubricant free compressed gas The presence of a lubricant in compressed gas from a reciprocating compressor including at least one cylinder 76 reciprocally receiving a piston 74 mounted on a rod 60 and connected to a rotary shaft 12 by a rotary to reciprocating motion converting mecha... | 02/13/1990 |
| 4899146 | Method of and apparatus for converting digital data between data formats A method of and apparatus for converting between first and second digital data formats is disclosed whereby digital words of the first format are analyzed to detect an upper bandwidth limit of a corresponding analog signal in an interval thereof defined b... | 02/06/1990 |
| 4897994 | Method of starting turbine engines The turbine engine may be started without the use of start injectors by a method including the steps of initiating rotation of a compressor and turbine wheel by applying an external angular accelerating force thereto, introducing fuel through a minority o... | 02/06/1990 |
| 4898265 | Torque limiter A torque limiter which includes an input shaft and an output shaft coaxial with the input shaft. A ball ramp torque transmitting device is disposed concentrically relative to the shafts. A first spring is axially disposed of the ball ramp device for norma... | 02/06/1990 |
| 4896875 | Copy sheet pull guide mechanism A pull guide mechanism for moving a copy sheet transversely of a conveyor board into proper registration in a printing, duplicating or like machine. A drive wheel is rotatably mounted in the conveyor board and a pressure wheel is disposed above the convey... | 01/30/1990 |
| 4896508 | Energy converter An energy converter for providing a plurality of different outputs, including a base, a heating unit mounted to the base, and defining a combustion chamber for combustion of fuel therein, a boiler mounted to the base for receiving products of combustion f... | 01/30/1990 |
| 4895319 | Parking trolley for light aircraft A parking trolley for light aircraft (1) with a couple of landing wheels (3,3), and a nose or rear supporting wheel (3'), comprising a mainly T-shaped frame (2) with adjustable supporting surfaces (4, 5,6) for the landing wheels (3,3) and the supporting w... | 01/23/1990 |
| 4894902 | Window operator assembly method A window operator has a base with an upstanding pivot pin having a bushing thereon and at least one component pivotally mounted on the bushing. The components are held in assembled relation by a captured washer and the washer has an outer annular portion ... | 01/23/1990 |
| 4893861 | Drum lifter ring A drum lifter ring formed as a one-piece molded synthetic resin ring having a plurality of rows of radially outwardly opening recesses in a midportion thereof, a rigid top wall projecting radially outwardly to beyond the outer surface of the midportion, a... | 01/16/1990 |
| 4892217 | Tamper evident dispensing closure A closure is provided for selectively closing an opening of a container, including a base element arranged to be affixed to a container adjacent an opening therein. In one embodiment, the closure is provided with tamper-evident film fixed to the base elem... | 01/09/1990 |
