WO1998041962A3 - Apparatus and methods for a shape memory spring actuator and display - Google Patents

Apparatus and methods for a shape memory spring actuator and display

Info

Publication number
WO1998041962A3
WO1998041962A3 PCT/US1998/005265 US9805265W WO1998041962A3 WO 1998041962 A3 WO1998041962 A3 WO 1998041962A3 US 9805265 W US9805265 W US 9805265W WO 1998041962 A3 WO1998041962 A3 WO 1998041962A3
Authority
WO
Grant status
Application
Patent type
Prior art keywords
shape
memory
display
spring
pin
Prior art date
Application number
PCT/US1998/005265
Other languages
French (fr)
Other versions
WO1998041962B1 (en )
WO1998041962A2 (en )
Inventor
Wunji Lau
Joe P Said
David A Schleppenbach
Original Assignee
Wunji Lau
Purdue Research Foundation
Joe P Said
David A Schleppenbach
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B21/00Teaching, or communicating with, the blind, deaf or mute
    • G09B21/001Teaching or communicating with blind persons
    • G09B21/003Teaching or communicating with blind persons using tactile presentation of the information, e.g. Braille displays
    • G09B21/004Details of particular tactile cells, e.g. electro-mechanical or mechanical layout

Abstract

A refreshable haptic display includes an actuator (35) using one or more shape memory springs (46). A shape memory spring (46) is heated and urges a pin (34) to a first or extended position. The pin (34) may be supported in the first position (34a) by a supporting mechanism. The shape memory spring (46) is heated electrically (48). The device may be used for haptic displays provided in a user interface from a software program and display controller.
PCT/US1998/005265 1997-03-18 1998-03-18 Apparatus and methods for a shape memory spring actuator and display WO1998041962B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US4051897 true 1997-03-18 1997-03-18
US60/040,518 1997-03-18
US4187697 true 1997-04-11 1997-04-11
US60/041,876 1997-04-11
US6958197 true 1997-12-12 1997-12-12
US60/069,581 1998-12-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19980911756 EP1013144A4 (en) 1997-03-18 1998-03-18 Apparatus and methods for a shape memory spring actuator and display

Publications (3)

Publication Number Publication Date
WO1998041962A2 true WO1998041962A2 (en) 1998-09-24
WO1998041962A3 true true WO1998041962A3 (en) 1998-12-03
WO1998041962B1 true WO1998041962B1 (en) 2001-04-12

Family

ID=27365739

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/005265 WO1998041962B1 (en) 1997-03-18 1998-03-18 Apparatus and methods for a shape memory spring actuator and display

Country Status (2)

Country Link
EP (1) EP1013144A4 (en)
WO (1) WO1998041962B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9918431D0 (en) * 1999-08-04 1999-10-06 Hedgecock Paul J Continuous braille system
US6371463B1 (en) 2000-04-21 2002-04-16 Dpd, Inc. Constant-force pseudoelastic springs and applications thereof
US6664702B2 (en) 2000-12-11 2003-12-16 Dpd, Inc. Pseudoelastic springs with concentrated deformations and applications thereof
WO2007073140A1 (en) * 2005-12-21 2007-06-28 Instituto Tecnológico y de Estudios Superiores de Monterrey Mechatronic system and method for positioning bolts in order to provide a frame with a reconfigurable surface using memory effect actuators
CN104036672A (en) * 2014-06-19 2014-09-10 游启麟 Portable braille alphabet touch-pronouncing device with long battery life and low cost
CN106057029A (en) * 2016-05-30 2016-10-26 安徽新华学院 Experimental system and experimental method for demonstrating shape memory effects of memory alloy

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4266936A (en) * 1978-11-06 1981-05-12 Leonard Rose Braille display reader
US4285039A (en) * 1978-03-28 1981-08-18 Motorola, Inc. Memory array selection mechanism
JPS59198483A (en) * 1983-04-26 1984-11-10 Kogyo Gijutsuin Tactile display for blind
JPS61166580A (en) * 1985-01-18 1986-07-28 Nec Corp Braille display element
US4664632A (en) * 1984-05-24 1987-05-12 Oleg Tretiakoff Tactile reading device
JPH02134674A (en) * 1988-11-15 1990-05-23 Canon Inc Tactile display device
DE3929275C1 (en) * 1989-09-02 1991-03-14 Bertold Dipl.-Inform. 7500 Karlsruhe De Schulz Tactile display unit for blind people - has groups of projecting pegs forming Braille symbols
US5165897A (en) * 1990-08-10 1992-11-24 Tini Alloy Company Programmable tactile stimulator array system and method of operation
JPH05300705A (en) * 1992-04-22 1993-11-12 Mitsubishi Heavy Ind Ltd Brush holder of dc motor
JPH06227051A (en) * 1993-02-08 1994-08-16 Fuji Xerox Co Ltd Braille printer
FR2718266A1 (en) * 1994-03-29 1995-10-06 Tretiakoff Oleg Tactile reader operated by wires with shape memory

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02580B2 (en) * 1981-07-14 1990-01-08 Sharp Kk
JPH07119619A (en) * 1993-10-07 1995-05-09 Ricoh Co Ltd Two-way functional parts and opening/closing gear for ventilating hole therewith
JPH11184369A (en) * 1997-12-18 1999-07-09 Mitsubishi Cable Ind Ltd Actuator element for braille dot drawing and its usage

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4285039A (en) * 1978-03-28 1981-08-18 Motorola, Inc. Memory array selection mechanism
US4266936A (en) * 1978-11-06 1981-05-12 Leonard Rose Braille display reader
JPS59198483A (en) * 1983-04-26 1984-11-10 Kogyo Gijutsuin Tactile display for blind
US4664632A (en) * 1984-05-24 1987-05-12 Oleg Tretiakoff Tactile reading device
JPS61166580A (en) * 1985-01-18 1986-07-28 Nec Corp Braille display element
JPH02134674A (en) * 1988-11-15 1990-05-23 Canon Inc Tactile display device
DE3929275C1 (en) * 1989-09-02 1991-03-14 Bertold Dipl.-Inform. 7500 Karlsruhe De Schulz Tactile display unit for blind people - has groups of projecting pegs forming Braille symbols
US5165897A (en) * 1990-08-10 1992-11-24 Tini Alloy Company Programmable tactile stimulator array system and method of operation
JPH05300705A (en) * 1992-04-22 1993-11-12 Mitsubishi Heavy Ind Ltd Brush holder of dc motor
JPH06227051A (en) * 1993-02-08 1994-08-16 Fuji Xerox Co Ltd Braille printer
FR2718266A1 (en) * 1994-03-29 1995-10-06 Tretiakoff Oleg Tactile reader operated by wires with shape memory

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1013144A4 *

Also Published As

Publication number Publication date Type
EP1013144A4 (en) 2001-07-18 application
WO1998041962B1 (en) 2001-04-12 application
EP1013144A2 (en) 2000-06-28 application
WO1998041962A2 (en) 1998-09-24 application

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