Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7252291 | Mechanical seal having a single-piece, perforated mating ring A mechanical seal (e.g., single mechanical seals, double mechanical seals, tandem mechanical seals, bellows, pusher mechanical seals, and all types of rotating and reciprocating machines) with reduced contact surface temperature, reduced contact surface wear, or inc... | 08/07/2007 |
| 7249768 | Shaft seal assembly and method A pressure-actuated shaft seal assembly and associated method for controlling the flow of fluid adjacent a rotatable shaft are provided. The seal assembly includes one or more seal members that can be adjusted between open and closed positions, for example, accordin... | 07/31/2007 |
| 7234868 | Radial pumping oil seal for fluid dynamic bearing motor An improved rotational motor, such as a spindle motor for a disc drive, is provided. The motor first comprises a hub having a shaft portion and a horizontal body portion. The motor also comprises a sleeve surrounding the shaft portion of the hub. A fine first vertic... | 06/26/2007 |
| 7159873 | Shaft seal The present invention relates to a seal assembly for use in a rotary machine. The seal assembly comprises a first member and a seal carrier mounted to the first member by a mounting member, a second member spaced from the first member and a seal running member posit... | 01/09/2007 |
| 7129609 | Magneto-fluidic seal with wide working temperature range A magneto-fluidic seal includes a shaft; a sleeve surrounding the shaft; a housing made of soft magnetic material surrounding the sleeve; a magnet conducting a magnetic flux to the sleeve; and a magnetic fluid in a gap between the sleeve and the shaft, and/or in a g... | 10/31/2006 |
| 7101085 | Rotating shaft conical fluid dynamic bearing A fluid dynamic bearing design is provided featuring a rotating shaft with at least one conical bearing formed integrally thereon. The shaft is disposed through a stationary sleeve, and a fluid separates the shaft and sleeve surfaces. ... | 09/05/2006 |
| 7001074 | High pressure barrier to oil loss by diffusion An improved rotational motor, such as a spindle motor for a disc drive, is provided. The motor first comprises a hub having a shaft portion and a horizontal body portion. The motor also comprises a sleeve surrounding the shaft portion of the hub. A fine vertical gap... | 02/21/2006 |
| 7001159 | Motor-driven pump for pool or spa An improved motor-driven pump is provided for delivering a flow of water in a swimming pool or spa environment or the like. The improved pump includes a motor mounted within a motor housing having a seal plate mounted at one end thereof. The seal plate carries a sha... | 02/21/2006 |
| 6921079 | Hydraulic seal arrangement A hydraulic seal arrangement 5 between two shafts 1, 2 rotating relatively to each other, particularly in the same sense of rotation, of especially a gas turbine engine, where the radially outer shaft 2 has an annulus 5a extending ... | 07/26/2005 |
| 6845987 | Shaft seal The present invention relates to a seal assembly for use in a rotary machine. The seal assembly comprises a first member and a seal carrier mounted to the first member by a mounting member, a second member spaced from the first member and a seal running member posit... | 01/25/2005 |
| 6568688 | Hydraulic seal arrangement, more particularly on a gas turbine This invention relates to a hydraulic seal arrangement between two, more particularly co-rotating shafts of especially a gas turbine engine, where the radially outer shaft when viewed with reference to the shafts' axis of rotation has an annulus extending... | 05/27/2003 |
| 6431553 | Radially pressure balanced floating seal system A radially pressure balanced floating seal system is used to seal a rotating shaft, such as a drive shaft in a torpedo, or other type of vehicle or machinery. The radially pressure balanced floating seal includes an outer seal housing and an inner seal ho... | 08/13/2002 |
| 6343794 | Lubricant seal having partition plate with gutter for drive motor gears and the like A lubricant seal having no wearing surfaces is provided with a partition plate having a gutter portion and a slinger supported in a labyrinth cavity. This lubricant seal is particularly useful in larger seal applications where the wear of the rotating sha... | 02/05/2002 |
| 6149161 | Grooved pumping seal An improved seal for a hydrodynamic bearing which aids in making the bearing less sensitive to changes in load and rotational speed, which is especially useful in hydrodynamic bearing motor in which the bearing is open at both the upper and lower ends. Ad... | 11/21/2000 |
| 5865597 | Liquid pump for preventing contact between the sealing structure and pressurized liquid A pump incorporates a housing with a pump chamber and an internal bore communicating with the pump chamber, and a power driven impeller shaft supported in the housing by at least one bearing in the internal bore. The impeller shaft has an impeller in the ... | 02/02/1999 |
| 5642888 | Temperature and pressure resistant rotating seal construction for a pump A seal construction is provided for sealing a rotating pump shaft against passage of a fluid along its central axis. The seal construction includes front and rear sealing flanges mounted coaxially to and rotatable with the pump shaft. Stationary engaging ... | 07/01/1997 |
| 5292226 | Vacuum seal In FIG. 5, a rotor (221) has a sealing face (241) provided with a plurality of grooves (331) in which a sealing fluid can be held by counter-balanced centrifugal and pressure differential forces as the rotor (221 | 03/08/1994 |
| 5239750 | Hydraulic seal and method of assembling the same A hydraulic seal is formed in the annular space 16 between two coaxial drive shafts 12 and 14. The seal is assembled with the two shafts in situ. An annular resilient seal member 30, which has an outer diameter which is larger than the inner diameter of t... | 08/31/1993 |
| 4902197 | Seal arrangement for a centrifugal type of pump A centrifugal type of pump, for example one used for compressing steam, is disclosed herein. This pump includes an impeller located within a pump housing and connected to a power driven shaft assembly extending through a cooperating opening in the housing... | 02/20/1990 |
| 4795167 | Mechanical seal A mechanical seal in which fins for causing a positive flow of fluid to be sealed are provided on the outer periphery of a seal cover carrying a seal ring so as not to accumulate a large quantity of slurry contained in the fluid to be sealed in the neighb... | 01/03/1989 |
| 4609072 | Connecting device between a lubricated motor and a rotating electric machine The connecting device is interposed between a rotating electric machine and a toothed lubricated device of the speed-reducer or multiplier type, this device comprising an output shaft of the electric machine, a screen, for opposing the propagation, toward... | 09/02/1986 |
| 4563012 | Sealing arrangement for counter-rotating shafts A non-contacting sealing arrangement for sealing two counter-rotating shafts with the aid of a housing having a tire-casing-like shape which surrounds at least one centrifugal disk connected for rotation in unison with one rotatable shaft and laterally su... | 01/07/1986 |
| 4560172 | Non-contacting sealing arrangement for a rotating part A non-contacting seal between a rotating part to be sealed and a stationary part, in which the rotating part includes a coaxial disk which is surrounded by a stationary collecting channel axially closely adjoining the disk but without contacting it. The c... | 12/24/1985 |
| 4527802 | Integral magnetic fluid centrifugal high speed gas seal and method A magnetic/centrifugal-fluid seal is characterized by a common region serving as both the magnetic gap for the magnetic seal and a fluid-receiving pool for the centrifugal seal. A magnetically permeable annular rotating member extends radially into an ann... | 07/09/1985 |
| 4460180 | Sealing of a shaft in a centrifugal pump and a method for effecting the sealing A sealing of a centrifugal pump shaft. When the pump is at rest, the sealing is effected mechanically between surfaces with the aid of loading means, a sealing surface and a packing, and when the pump is in operation, the sealing is effected by means of a... | 07/17/1984 |
| 4455026 | Vee-shaped magnetic/centrifugal seal and method of operation A combined magnetic/centrifugal seal for a rotating shaft rotatably journalled within a housing. The rotating shaft has a generally circular cross section and at least one radially extending generally Vee-shaped cross section circumferential portion forme... | 06/19/1984 |
| 4426088 | Centrifugal fluid seal with drain holes and fluid diverting means A centrifugal fluid seal construction may be employed to provide a pressure seal along a rotating shaft passing through a housing wall, and may also be employed as a containment seal where the pressure drop across the seal is minimal. Each of the disclose... | 01/17/1984 |
| 4335885 | Plural fluid magnetic/centrifugal seal A plural fluid magnetic/centrifugal-fluid seal is provided for hermetically sealing the space between a rotated shaft member and a close fitting spaced-apart stationary housing wherein the housing and the shaft are shaped to provide magnetic pole-like clo... | 06/22/1982 |
| 4304411 | Magnetic/centrifugal-fluid seal A magnetic/centrifugal-fluid seal comprising a rotating disk-like collar/vane surrounding a rotatable shaft journalled in a housing defined by close-fitting stationary members forming a cavity to accommodate the rotatable shaft and disk-like collar/vane. ... | 12/08/1981 |
| 4200296 | Ferrofluid centrifugal seal A ferrofluid centrifugal seal and method of sealing a rotatable shaft, wherein ferrofluid is retained in an O-ring-seal form at static and low speeds and is moved to a barrier seal in a passageway at high speeds.... | 04/29/1980 |
| 4153258 | Packing seal A packing seal for closing the space between a rotating shaft and a stationary machine part is described. A ring is located in an annular slot formed in one of the shaft or machine parts. The ring is tensioned radially on the rotating or on the non-rotati... | 05/08/1979 |
| 4114902 | Sealing rings There is disclosed improved sealing rings having two complementary parts. The sealing rings are used on the shafts of rotating elements. The first ring has an annular face with a recess therein and adapted and constructed to mate with an axially extending... | 09/19/1978 |
| 4054293 | Hybrid magnetic fluid shaft seals An improved dynamic shaft seal particularly useful with submersible pumps employing in combination magnetic fluid seals and a centrifugal seal filled with a magnetic seal fluid, wherein the centrifugal seal provides sealing at high rotational speeds, and ... | 10/18/1977 |
| 3987973 | Device in machine elements with closed casing The invention relates to a device for sealing a casing housing a machine element the rotatable shaft of which passes through the casing within which a pressure differing from that of the outside the casing is maintained. To provide a perfect sealing at th... | 10/26/1976 |
