Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 6213472 | Shaft seal The invention relates to a non-contacting shaft seal formed between a rotating sealing ring (3) and a non-rotating circular sealing element (1). The sealing element (1) is spring-loaded towards the sealing ring (3). Gas is pumped into spiral grooves (6) f... | 04/10/2001 |
| 6145844 | Self-aligning sealing assembly for a rotating shaft A self-aligning, sealing assembly in accordance with the present invention includes a sealing apparatus and at least one preloading device. The sealing assembly is mounted in machinery which has a rotating shaft and a stationary member with an inner surfa... | 11/14/2000 |
| 6079965 | Cylinder, for a rolling piston compressor A slit, spanning a distance across the top of the vane slot in a cylinder for a rolling piston compressor, safely distributes the stress which occurs in the vane slot. The slit opens onto the bore, in the cylinder, which is provided for a rotary shaft and... | 06/27/2000 |
| 6075685 | Speed protection system for a machine and a method thereof The present invention relates to a speed protection system for monitoring the speed of a rotating shaft in a machine. The speed protection system includes a first speed detection system, a first time delay system, and a first time delay system. The first ... | 06/13/2000 |
| 6071073 | Method of fabricating a turbine inlet casing and the turbine inlet casing A method for fabricating a turbine inlet casing has several steps. Providing a prismatic block having an upstream face, a downstream face, and a central axis perpendicular to the upstream and downstream faces. Cutting a circular shaft clearance opening th... | 06/06/2000 |
| 6047778 | Percussion drill assembly A compressor piston divides a first compartment into two compression chambers, while a hammer piston divides a second compartment into two drive chambers, each of the compression chambers being connected to a respective one of the drive chambers to form a... | 04/11/2000 |
| 6030174 | Variable characteristic double-sealed control valve A method and apparatus for regulating fluid flow through a turbine comprising a valve housing positioned in a fluid flow path, the valve housing having a fluid inlet, a fluid outlet, and chamber connecting the fluid inlet and the fluid outlet; a valve sle... | 02/29/2000 |
| 6004118 | Valve polarization means, for a fluid-working machine structure Inlet valves, with inlet cages, in inlet ports in a cylinder head, and outlet valves, with outlet cages, in outlet ports in the cylinder head, comprise mating combinations of elements which exhibit optimum and proper seating together. The bores and the ca... | 12/21/1999 |
| 6000701 | Labyrinth seal assembly and method A labyrinth seal system and method for sealing against the flow of a fluid along a rotating member according in which a fixed housing surrounds the rotating member and one or more sealing members extend from the housing and engage the rotating member for ... | 12/14/1999 |
| 5957220 | Percussion drill assembly A compressor piston divides a first compartment into two compression chambers, while a hammer piston divides a second compartment into two drive chambers, each of the compression chambers being connected to a respective one of the drive chambers to form a... | 09/28/1999 |
| 5927943 | Inlet casing for a turbine A turbine with the improved inlet casing in accordance with the present invention includes a shaft which extends along and rotates about a central axis. The turbine also includes at least one rotor wheel which is mounted on and extends radially outward fr... | 07/27/1999 |
| 5878652 | Cast, substantially hollow, piston body In the embodiment shown, the body is formed of cast aluminum, and is devoid of clean-out holes in the upper and bottom ends thereof. Instead, the clean-out holes are formed in the outer, annular wall, through an annular recess formed in the outer wall, To... | 03/09/1999 |
| 5823742 | Variable and bidirectional steam flow apparatus and method A valve apparatus for a turbomachine comprises a manifold casing, a valve lift assembly, and a plurality of valve assemblies. The manifold casing defines a valve inlet chamber and has a top wall and a bottom wall with a plurality of vertically disposed op... | 10/20/1998 |
| 5810558 | Bearing case support arrangement The present invention relates to turbomachines and to a support for the bearing casing used in such machines. One end of a turbomachine housing is rigidly supported by a support member while the second end is supported by the inboard end of a bearing case... | 09/22/1998 |
| 5788456 | Turbine diaphragm assembly and method thereof A turbine diaphragm assembly includes inner and outer endwall rings, nozzle vanes each with a tenon extending outwardly from one end, and inner and outer retaining rings. The inner and outer endwall rings each have inner and outer radial surfaces and a pl... | 08/04/1998 |
| 5772401 | Diaphragm construction for turbomachinery A highly accurate, reproducible and economnical method of manufacturing split diaphragms for use in turbomachinery wherein the diaphragm is first machined axially, and then split across the axial machining to for precision positioning channels into which ... | 06/30/1998 |
| 5769117 | Guard and seat assembly, and a guard structure therefor A fluid control valve has a valve guard and a valve seat, and the guard has a circular recess formed in a front surface thereof in which to nest the valve seat. In one embodiment, a pair of valve guards are integrally joined together by a plurality of web... | 06/23/1998 |
| 5759011 | Journal bearing assembly A journal bearing assembly for mounting within a rotatable shaft that has been hollowed out to form a shaft cavity, said assembly comprising a plurality of bearing pads positioned about a bearing support, said support and bearing pads positioned within th... | 06/02/1998 |
| 5727930 | Valves and rod assembly A hollow through-bolt is threaded internally and externally, at one end, to receive therein a reciprocable, end-threaded rod. A pair of fluid-control valves, centrally bored, are mounted on the through-bolt in spaced apart disposition. The other end of th... | 03/17/1998 |
| 5720558 | Tilting bearing pad with an axial feed groove having an exit side profiled area A tilting bearing pad for use in a turbine engine in accordance with the present invention includes an opening extending between opposing inner and outer surfaces of the pad and a profiled area extending from the opening. More specifically, the opening co... | 02/24/1998 |
| 5683235 | Head port sealing gasket for a compressor A head port sealing gasket (56) is disclosed for use in a barrel compressor (40) which has a head (42) fit within a barrel casing (44). The sealing gasket (56) has a curved outer surface (60) matching the curvature of the inner diameter of the barrel casi... | 11/04/1997 |
| 5672047 | Adjustable stator vanes for turbomachinery An adjustable stator vane assembly disposed in a fluid conduit of a turbomachine includes an annular outer shroud and an annular inner shroud positioned within and concentric to the outer shroud to form an annular fluid flow path. A plurality of rotatable... | 09/30/1997 |
| 5669218 | Premix fuel nozzle Air and gaseous fuel for a gas turbine combustor are mixed within a nozzle prior to being introduced into the combustor. The fuel is introduced into an upstream end of an elongated passageway through the nozzle, while air entry ports are located in the th... | 09/23/1997 |
| 5662180 | Percussion drill assembly A compressor piston divides a first compartment into two compression chambers, while a hammer piston divides a second compartment into two drive chambers, each of the compression chambers being connected to a respective one of the drive chambers to form a... | 09/02/1997 |
| 5651616 | Tapered bearing housing A bearing structure having an annular cage and an annular housing that optionally mate at frustogeometrical surfaces for supporting and positioning a rotatable shaft of a turbomachine and that optionally provides a squeeze film damper between the frustoge... | 07/29/1997 |
| 5647730 | Self-contained, clearance-volume adjustment means for a gas compressor In association with a straight-cylinder, reciprocating gas compressor, hydraulic circuitry and valving is provided to track movement of an intake valve which cooperates with an end of the compressor to define a clearance volume. The valving is selectively... | 07/15/1997 |
| 5642753 | Valve unloader assembly A plate mounted to a reciprocable shaft has a plurality of straight fingers (a) coupled thereto and (b) extending perpendicularly therefrom, and each of the fingers is separately detachable from the plate to simplify and facilitate maintenance and repair.... | 07/01/1997 |
| 5634340 | Compressed gas energy storage system with cooling capability One aspect of the present invention relates to a process of cogeneration utilizing a compressed gas energy storage system which includes a gas storage area, a compression train for pressurizing a gas to be stored in the gas storage area, and an expansion ... | 06/03/1997 |
| 5613781 | Hanging spring supported squeeze film damping system for shaft bearing A damper film bearing assembly for supporting a rotatable shaft of a turbomachine includes a housing having a central bore sized to receive the bearing member, and an annular cavity formed within the housing around the central bore. The annular cavity inc... | 03/25/1997 |
| 5606211 | Amortisseur winding arrangement, in a rotor for electrical, rotating equipment Slot wedges, electrically-conductive, used in rotor slots, between rotor teeth, and overlying the rotor coils, are serially arranged in the slots and have arcuate grooves in opposite ends thereof. Inserts, also electrically-conductive, are spring-loaded i... | 02/25/1997 |
| 5593232 | Integral pivot pad bushing seal bearing An integral pivot pad bushing seal bearing, adapted for sealing about a rotating shaft, includes a carrier ring having a radially inner generally cylindrical surface for providing a fluid seal about the shaft. A plurality of cavities are formed in the car... | 01/14/1997 |
| 5586483 | Piston and rod assembly An aluminum piston is mounted onto a steel piston rod by means of an intervening, steel hub. The piston, hollow with an opening at one end, pilotingly receives the hub in the opening. The hub has a throughging bore in which the piston rod is pilotingly re... | 12/24/1996 |
| 5564906 | Means for moving a valve within a gas compressor having a straight cylinder An elongated sleeve, externally threaded, is threadedly engaged with threaded bores in transverse walls formed in a straight cylinder of a gas compressor. A nut is secured to an intermediate portion of the sleeve, by means of a setscrew, and an end of the... | 10/15/1996 |
| 5550417 | Amortisseur winding arrangement, in a rotor for electrical, rotating equipment Electrically-conductive, segmental, slot wedges, with electrically-conductive inserts therebetween, and electrically-conductive interconnects, between end ones of the wedges and the annular, end retaining ring, of a rotor, define an amortisseur winding fo... | 08/27/1996 |
| 5547350 | Modular shaftless compressor A shaftless compressor module has a module casing containing an axial chamber and an annular chamber which is coaxial with the axial chamber. An annular motor stator can be fixedly positioned in the annular chamber coaxially with the longitudinal axis of ... | 08/20/1996 |
| 5533476 | Walled precombustion chamber unit A body, having a substantially closed cell formed therewithin, has a projecting nozzle, externally threaded, for threaded engagement with the sparkplug hole in a gas engine cylinder head. The body has two passageways formed therein, each threaded, for adm... | 07/09/1996 |
| 5529091 | Check valve A body, having ported plates astride a third plate having a void formed therein, confines a ball-type valving element therein, in a chamber defined by the void. Ports in the ported plates open onto the chamber, and the ported plate on the outlet side of t... | 06/25/1996 |
| 5509782 | Bearing case support A first end of a turbine casing is rigidly supported by a support member, while the second end is supported via a bearing case. The inboard end of the bearing case supports the second end of the turbine casing at points in a horizontal plane containing th... | 04/23/1996 |
| 5490771 | External, shaft bearing arrangement, for a rotary gas compressor In a rotary gas compressor which has a compression housing, in which the gas compressing elements are operatively confined, a shaft and bearing housing is provided. The latter housing is removably coupled to an end of the compression housing, and supports... | 02/13/1996 |
| 5487640 | Balancing rings for assembled steam turbines The present invention is directed to an assembled steam turbine with at least one balancing ring. The assembled steam turbine includes a shaft rotatable about an axis and a housing, defining a machine interior. The housing has first and second axially-spa... | 01/30/1996 |
