Coldwork holes with reusable seamless SMA sleeve

forces are generated point

where

smallest.

most

the

gap

intensely

between

Inlets and outlets

displacement

near to the the

sheets

i!

for each cell permit

of fluid during

generation

In a preferred

forces.

embodiment

the plurality

of sheets forms a stack of layers 01F

arrays of unit cells. The layers are configured

ir

such

i:

a way

that

by pairs

bi-directional

of actuators

activation

working

core. One of the end plates may, in turn, to maintain

with the piston

of thr

electrostatic

caused

piston function

opposite

a piston

core. Specifically,

functions

as a spring

deformed

during

a crimping

causing

One

another

of the spring

crimping

end

plates

force

method

to

is

may

the

also

the

the flux

also

piston

apply rod.

provided

system.

A

which

Publication date: 17 July 200 1 Inventors: C. Leriche,

A. Le Mehaute

Encapsulated MEMS brand-pass filter for integrated circuits Applicant:

each other. At least one of every pair of the sheen

effectively

may be preformed

simple manner.

Corporation,

Patent ntimber: US 6260675

This invention

Publicatia~zdate: 17 July 200 1

mixing

and

u&zing

an encapsulated

to provide between

into corrugations

a predetermined

or into flap:

mechanical

bias

the pairs, or the sheets may form curved

portions

by

an

displacement preferably .mu.m

applied

between from

thick

individual

1 .mu.m

provide

to about

the cells preferably

displacement

to about

to

a

the pairs. The sheets are

about

and

load

100

have an

of from about

5 .mu.m

Microelectromechanical

with

suspended frame

aperture,

a second

relative

rotates

and

a plate

A first pair of

so that

the plate along

to the second

rotates

about

frame

the second

The

first

the second

and

so that

axes

mechanical relative

force for rotating

to the

actuator

rotating

provides

the second

and the second

rotated

force

to the second

axis. Accordingly,

be independently

frame

the first axis. A

mechanicat

the plate relative

provides

for

frame

the plate can

relative to the first axis

Walters,

Dhuler,

D.A.

Magnetorheological This

Koester,

M.D.

K.W. Markus

Applicant: Delphi invention

manner

presents

movement

a novel and improved fluid

prevents

between

throughout

damper

portions

ring

for

formed

engaging at each

relative

which core in a

axial and radial

the flux ring and the core

operation.

crimp

end

The

damper

includes

to absence

insulating a thermally

support, substrate and/or

structure

Smart Materials Bulletin

in

a thermally adjacent

each

insulating each

Accordingly,

isolation

spaced

in the

diameter

portion,

-ough surface, -ough

sleeve

Lurfaces of the end-cap which are carried

insulating

structure

improved

thermal

s therefore

elastically

lower power,

larger force and/or

higher

higher

the major

speed.

with

the

)lacing

P~biication dlte: 17 July 2001 Inventor: R. Mahadevan

rut of the sleeve; thereby

transmitting bore; thereafter

The

patent

ferromagnetic

to

relates properties

organic molecules new molecules

an

materials

that

with magnetic

have the general is .alpha.-substituted

with

are made properties. formula

up of The

A:N--B,

conjugated

with N being the N atom; and B is

.alpha.-substituted

aaterials

to

cyclic

have ferromagnetic

radical.

properties

These and may

means; of

diameter

and thereafter

against

the mandrel

than

the

inserting

the

into the hole; the

backward

workpiece; through

elastically

and

expanding

the hole bore and exerting

forces on the sleeve which in turn

radial outward

France

of:

rough

portion

smaller

the mandrel

,etracting

Applicant: Gemplus,

a

pulling

diameter

expanded

Patent number: US 62625 12

Materials with ferromagnetic properties

having

the

the sleeve whose

end-cap

a

the steps

of a hole in a workpiece;

#leeve together

with

and the adapting-spacer

to a size sufficiently

iiameter

alloys with a

preferred

between

on a mandrel

through

,hrinks

forward

The

includes

firmly

he mandrel

structures

surface.

operation

the

support,

apart

memory a mandrel

and an adapting-spacer

:oldworking Ilacing

alloys. tubular

an end-cap

complementary

for

tubular

memory

of shape property,

,assing

for microelectromechanical to allow

apart

structure

spaced

at least one thermally

in the beam.

where A:N--

plates core

najor

in the beam

a reusable

of shape

sleeve made

has

a thermally

than

L. Shi, J.L.

uses a pre-lubricated

and

may

C. Jhanes,

using

sleeve made

the beam

at each end of the beam,

insulating

seamless

seamless

structure

and operation

employed.

Chan,

holes

compared

structure

include

:oldworking

structure.

thermal

and and

Coldwork holes with reusable seamless SMA sleeve 4 method and apparatus are presented

The apparatus

The

mixing

Patent number: US 62G2464

preferably

than

a

device

is smaller, less expensive

more reliable in construction

with a superelasticity

The heat that remains

cyclic amine,

of the piston

thermal

be increased.

on each end of the flux end

structure

conductiviry

a

the spaced

isolation

device.

MEMS

the steps of signal

and which

Inventors: K.K.

in the

reduces

system

of fabricating

constructed

combines

methods

Speidell, J.F. Ziegler

and into the

through

MEMS

presented

unitarily

signal

and

P~b~~rationdate: 17 July 200 1

beam

structure

path

isolation

the supports.

creates the

and into the substrate,

lower thermal

thus

supports

isolation

of the thermal

The thermal

A

supports.

from

from the beam,

apart supports

apart

to the beam

apart

conduction

respective

secure the end plates and thus the flux ring to the

@

heat

substrate.

Machines

communication systems

existing devices currently

of heat to displace

path

A thermal

conduction

a

apart

presents filtering

the sleeve wall against

Inc., USA

secures a flux ring to a piston which

positioned

fluid damper

Technologies,

magnetorheological effectively

the spaced

deflection,

Publication date: 3 July 2001 Inventors: V.R.

through substrate.

may be provided

Patent number: US 6256134

include spaced

the spaced of heat

conduction

efficiency

axis.

between

application

which

the spaced apart supports

upon application

thermal

can

preferably

the second

to the first frame about

axis

the plate

axis relative

second

pair

a second

at a 90” angle. A first actuator

intersect

second

the second

the first axis. A second

relative

about

frame

aperture.

frame

about

of beams supports

frame.

a second

the second frame along a first axis

to the first

frame

a first

aperture,

in the second

beams support

the beam

includes

and

on the microelectronic between

simple,

Business

USA

is also

filtering,

structures

International

A method

Inc., USA

substrate

beam extends

The

in the first frame in which

suspended

Applicant: JDS Uniphase

and expands

devices

device

a first

has

Herb

USA.

electromechanical

frame

WR.

in a

Thermally actuated MEMS including thermal isolation structures

supports

R.D. Horning,

crimping

Inventor: J.H. Muhlenkamp

microelectronic

Publication date: 3 July 2001 Inventors: C. Cabuz,

An

permits

Microelectromechanical

200 .mu.m.

Patent number: US 6255758

Applicant: MCNC,

and efficiently

in

or magnetoresistive

Patent number: US 6262306

elastically

process

of fields and particularly

any electromagnetooptical

each end piate

device by being

end plates to apply a spring force against ring,

be used in a variety

rod in connection

the coldworking

force to the hole

the sleeve diameter

a size sufficiently the coldworked

smaller

shrinking

to

the diameter

of

to ease the removal

the

sleeve out of the hole. The sleeve is reusable

due

to

the

property

hole

than

repeatability

of

of shape memory

Patent number: US 626699

the

superelasticity

alloys. 1

P~b~~c~tio~Ate: 3 1 July 200 1 Inventor: A.S. Kuo

S~~te~ber 2001