Seagate Technology Incorporated

Other

Seagate Technologies, Inc.

Epix Orthopaedics, Inc.

Alan Lyndon Grantz

Hans L Leuthold

Anthony Joseph Aiello

Norbert Steven Parsoneault

Mohamed Mizanur Rahman

Robert Alan Nottingham

Troy Michael Herndon

Roger Allen Addy

Michael David Kennedy

Samnathan Murthy

Klaus Dieter Kloeppel

Jeffry Arnold LeBlanc

Lynn Bich-Quy Le

Matt L Shumway

Gunter Karl Heine

Paco Gregor Flores

Robert Michael Pelstring

Wesley R Clark

Klaus Diete Kloeppel

Marten Fredrick Byl

Etoli Wolff

Steve Parsoneault

Norbert Steve Parsoneault

John C Dunfield

Raquib Uddin Khan

David John Jennings

Amir Meir Matityahu

Chris Michael Woldemar

Daniel Dennis Dittmer

Alexander Gredinberg

Lakshman Nagarathnam

Lynn B Le

Steven C Knoche

James Sidney Lee

Ronald Thomas Albo

Benjamin Clawson

Susan Immisch

Saul Ceballos

Gary A Treleven

John McDermott

Jeffrey Arnold LeBlanc

Peter R Riegler

Anthony J Aiella

Lynn Bich-Ouy Le

Robert Alan Notthingham

Klaus Dieter Koeppel

An apparatus including a sterilizable tray having a base and at least one fixture connected to the tray adapted for removably securing an implant insertion device to the tray. The tray can be free of a first wall portion for permitting the proximal end of an implantable device to axially align with the end of the implant insertion device for coupling to the implant insertion device and can be free of a second wall portion for permitting a tool to axially align with the end of the implant insertion device so as to threadedly couple the implant insertion device to the implantable device. Related methods and apparatus are provided.

Method for preparing implantable device for use

An apparatus is provided including a shaft, wherein the shaft is stationary. A rotatable component is configured to rotate with respect to the shaft. A fluid is operable to flow between the shaft and the rotatable component. A limiter is at a first axial end of the shaft, and a cup is at a second axial end of the shaft. An axially extending grooved region is between the limiter and the rotatable component.

Fluid pumping capillary seal for a fluid dynamic bearing

An apparatus and method are provided for a robust and shock resistant fluid dynamic bearing. A fluid sealing system with fluid pumping and capillary features provides increased reliability and performance for small form factor disc drive memory systems. Concerns of motor jog are addressed, jog being the rapid and repeated opening and closing of spaces between relatively rotatable components that can dispel oil from, or draw air into, these spaces. The fluid pumping capillary sealing system includes a fluid pumping groove with a rib portion and a slot portion for pumping fluid. The fluid pumping capillary sealing system also includes a capillary seal. In an aspect, a sweeping rib sweeps fluid toward the bearing. A truncated rib is situated adjacent to the sweeping rib, the truncated rib extending a shorter radial distance as compared to the sweeping rib and forming a plenum region.

An apparatus includes a stationary shaft and a sleeve rotatable with respect to the shaft. A fluid dynamic bearing is defined by the stationary shaft and the sleeve. A fluid channel includes a first axially extending portion in the fluid dynamic bearing, and a radially extending portion extending radially outward from the first axially extending portion. In addition the fluid channel includes a second axially extending portion extending axially downward from the radially extending portion. The apparatus further includes a pump seal including grooves formed in the second axially extending portion.

Folded fluid channel for a fluid dynamic bearing motor

Provided herein, in some embodiments, is an apparatus including a plastic component; a stationary component including a thrustplate; a rotatable component including the plastic component affixed to a sleeve; and at least a first fluid dynamic bearing formed between the thrustplate and an opposing surface of the rotatable component.

Fluid dynamic bearing motor including plastic

A rotating hub and fixed spindle assembly with first and second fluid dynamic journal bearings and first and second fluid dynamic thrust bearings for a disc drive memory system has a pump seal and a radial ring seal at a first axial terminus for lubricant containment, and a capillary seal and a labyrinth seal at a second axial terminus for lubricant containment and storage. Lubricant fluid pressure differences between first and second seals are minimized through one or more lubricant fluid communicating channels in the hub assembly, in order to minimize lubricant fluid loss through a seal. Lubricant fluid can also be purged of any air bubbles by lubricant fluid circulation through the channel.

Hub and spindle assembly

A system, method and means is provided for withstanding mechanical shock for use with fluid dynamic bearings. A sealing system is provided that withstands 1000 G shock events. In an aspect, a grooved pumping seal employed between a thrust plate and a shield, a thrust plate having spiral grooves, a fluid recirculation passageway, and a reservoir creates an asymmetric pressure gradient. In an aspect, fluid is retained and air is purged utilizing an enlarged fluid reservoir, axial channels and an angled fill hole. In an aspect, a shaft is attached to a top cover supplying radial stiffness, and an enlarged single-sided thrust plate improves dynamic parallelism.

Apparatus for fluid recirculation

An apparatus and associated method characterized by an enclosure having a side member that defines a substantially orthogonally directed cavity penetrating the side member. A motor shaft in the enclosure has a distal end that is operably aligned with the cavity. A shear transfer member in the enclosure is operably affixed to the motor shaft. One of the shaft and the shear transfer member is sized for a close mating engagement with the side member in the cavity, and the shear transfer member is further sized for being simultaneously shear coupled to the side member.

Restraining motor shaft play

To simplify fabrication of an integral hub piece, the opening between the upper and lower female cones in this hub has sufficient width or radial dimension to allow access to both cones from one side of the hub with the cutting tool. A cutting tool is used which has a width smaller than the opening between the cones. Preferably, the tool has a width which is about equal to or smaller than an angular dimension through this opening which is defined by extending surfaces of the upper and lower female cones. If this limitation is satisfied, both cones can be created with a single machine set up operating from one side of the integrated hub.

Single piece hub with integral upper and lower female cones

A fluid dynamic bearing motor features a stationary assembly, a rotating assembly supported on the stationary assembly, a fluid dynamic bearing system in a gap between the stationary and rotating assemblies, a radial capillary seal defined proximate a first end of the journal gap, and at least one re-circulation hole extending from the radial capillary seal to a second end of the journal gap. A single thrust shaft end bearing which pressurizes the shaft end to create an axial thrust bearing and drive bubbles in the fluid (where the fluid is a liquid) to the outer diameter of the shaft and into the recirculation path. The journal may be supported for rotation by dual sets of grooves; the dual groove asymmetry in the journal maintains a positive pressure between the journals.

Single thrust magnetically biased fully recirculating self purging fluid dynamic bearing motor

Method and system for withstanding shock in a spindle motor bearing

A disk drive motor having a capillary bearing seal is provided. In one embodiment, a disk drive motor includes a stationary assembly and a rotating assembly having a fluid dynamic journal bearing disposed therebetween. A capillary seal is defined proximate an upper end of the journal bearing and coupled to at least one re-circulation path. The capillary seal is configured to advantageously retain lubricating fluids within the motor when the motor is subjected to lateral shock.

Capillary seal with flow restrictors

A fluid dynamic bearing design featuring a shaft, a first and second conical bearing affixed, respectively, to a first and second end of the shaft, and asymmetric seals on each bearing. The asymmetric seals pump fluid into reservoirs on the first and second conical bearings.

Non-recirculating conical fluid dynamic bearing for an electric motor

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Aptos, CA, United States of America

Alan Lyndon Grantz