Latching micro-magnetic switch with improved thermal...

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Polarity-responsive

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C200S181000

Reexamination Certificate

active

07420447

ABSTRACT:
A micro-magnetic switch includes a permanent magnet and a supporting device having contacts coupled thereto and an embedded coil. The supporting device can be positioned proximate to the magnet. The switch also includes a cantilever coupled at a central point to the supporting device. The cantilever has a conducting material coupled proximate an end and on a side of the cantilever facing the supporting device and having a soft magnetic material coupled thereto. During thermal cycling the cantilever can freely expand based on being coupled at a central point to the supporting device, which substantially reduces coefficient of thermal expansion differences between the cantilever and the supporting device.

REFERENCES:
patent: 4065677 (1977-12-01), Micheron et al.
patent: 4461968 (1984-07-01), Kolm et al.
patent: 4496211 (1985-01-01), Daniel
patent: 4570139 (1986-02-01), Kroll
patent: 5016978 (1991-05-01), Fargette et al.
patent: 5048912 (1991-09-01), Kunikane et al.
patent: 5398011 (1995-03-01), Kimura et al.
patent: 5472539 (1995-12-01), Saia et al.
patent: 5475353 (1995-12-01), Roshen et al.
patent: 5557132 (1996-09-01), Takahashi
patent: 5578976 (1996-11-01), Yao
patent: 5629918 (1997-05-01), Ho et al.
patent: 5638946 (1997-06-01), Zavracky
patent: 5696619 (1997-12-01), Knipe et al.
patent: 5784190 (1998-07-01), Worley
patent: 5818316 (1998-10-01), Shen et al.
patent: 5838847 (1998-11-01), Pan et al.
patent: 5847631 (1998-12-01), Taylor et al.
patent: 5898515 (1999-04-01), Furlani et al.
patent: 5945898 (1999-08-01), Judy et al.
patent: 5982554 (1999-11-01), Goldstein et al.
patent: 6016092 (2000-01-01), Qiu et al.
patent: 6016095 (2000-01-01), Herbert
patent: 6028689 (2000-02-01), Michalicek et al.
patent: 6078016 (2000-06-01), Yoshikawa et al.
patent: 6084281 (2000-07-01), Fullin et al.
patent: 6094116 (2000-07-01), Tai et al.
patent: 6094293 (2000-07-01), Yokoyama et al.
patent: 6115231 (2000-09-01), Shirakawa
patent: 6124650 (2000-09-01), Bishop et al.
patent: 6143997 (2000-11-01), Feng et al.
patent: 6160230 (2000-12-01), McMillen et al.
patent: 6307452 (2001-10-01), Sun
patent: 6469602 (2002-10-01), Ruan et al.
patent: 6469603 (2002-10-01), Ruan et al.
patent: 6633158 (2003-10-01), Shen et al.
patent: 6639493 (2003-10-01), Shen et al.
patent: 6750745 (2004-06-01), Wei et al.
patent: 2003/0222740 (2003-12-01), Ruan et al.
patent: 2004/0036132 (2004-02-01), de los Santos
patent: 2572546 (1986-05-01), None
patent: 54-161952 (1979-12-01), None
patent: 4-275519 (1992-10-01), None
patent: 6-251684 (1994-09-01), None
patent: WO 97/39468 (1997-10-01), None
patent: WO 98/34269 (1998-08-01), None
patent: WO 9927548 (1999-06-01), None
patent: WO 01/57899 (2001-08-01), None
patent: WO 01/84211 (2001-11-01), None
Richard P. Feymann, “There's Plenty of Room at the Bottom”, Dec. 29, 1959, pp. 1-12, Internet Source: http://222.zyvex.com
anotech/feynman.html.
E. Fullin, J. Gobet, H.A.C. Tilmans, and J. Bergvist, “A New Basic Technology for Magnetic Micro-Actuators”, pp. 143-147.
Jack W. Judy and Richard S. Muller “Magnetically Actuated, Addressable Microstructures”, Sep. 1997, Journal of Microelectromechanical Systems, vol. 6, No. 3, Sep. 1997, pp. 249-255.
Ezekiel JJ Kruglick and Kristofer SJ Pister, “Project Overview: Micro-Relays”, Tech. Digital Solid-State Sensor and Actuator Workshop, 1998, Hilton Head 98 and 19thInternational Conference on Electric Contact Phenomena, Nuremberg, Germany, Sep. 1998 (Downloaded from Internet Source: http://www-bsac.eecs.berkeley.edu/Kruglick/relays/relays.html, on Jul. 12, 1999) 2 pgs.
Ezekiel J.J. Kruglick and Kristofer S.J. Pister, “Bistable MEMS Relays and Contact Characterization”, Tech. Digital Solid-State Sensor and Actuator Workshop, Hilton Head, 1988 and 19thInternational Conference on Electric Contact Phenomena, Nuremberg, Germany, Sep. 1998, 5 pgs.
Laure K. Lagorce and Oliver Brand, “Magnetic Microactuators Based on Polymer Magnets”, Mar. 1999, IEEE Journal of Microelectromechanical Systems, IEEE, vol. 8., No. 1., Mar. 1999, 8 pages.
“P10D Electricity & Magnetism Lecture 14”, Internet Source: http://scitec.uwhichill.edu.bb/cmp/online/P10D/Lecture14/lect14.htm, Jan. 3, 2000, pp. 1-5.
“Ultraminiature Magnetic Latching to 5-relays SPDT DC TO C Band”, Series RF 341, product information from Teledyne Relays, 1998.
M. Ruan et al., “Latching Microelectromagnetic Relays”, Sensors and Actuators A 91 (Jul. 15, 2001), Copyright 2001 Elsevier Science B.V., pp. 346-350.
Xi-Qing Sun, K.R. Farmer, W.N. Carr,“A Bistable Microrelay Based on Two-Segment Multimorph Cantilever Actuators”, 11th Annual Workshop on Micro Electrical Mechanical Systems, Heidelberg, Germany, IEEE, Jan. 25-29, 1998, pp. 154-159.
William P. Taylor and Mark G. Allen, “Integrated Magnetic Microrelays: Normally Open, Normally Closed, and Multi-Pole Devices”, 1997 International Conference on Solid-State Sensors and Actuators, IEEE, Jun. 16-19, 1997, pp. 1149-1152.
William P. Taylor, Oliver Brand, and Mark G. Allen. “Fully Integrated Magnetically Actuated Micromachined Relays”, Journal of Microelectromechanical Systems, IEEE, vol. 7, No. 2, Jun. 1998, pp. 181-191.
Tilmans, et al., “A Fully-Packaged Electromagnetic Microrelay”, Proc. MEMS '99, Orlando, FL, Jan. 17-21, 1999, copyright IEEE 1999, pp. 25-30.
William Trimmer, “The Scaling of Micromechanical Devices”, Internet Source: http://home.earthlink.net/-trimmerw/mems/scale.html on Jan. 3, 2000 (adapted from article Microrobots and Micromechanical Systems by W.S.N. Trimmer, Sensors and Actuators, vol. 19, No. 3, Sep. 1989, pp. 267-287, and other sources).
John A. Wright and Yu-Chong Tai, “Micro-Miniature Electromagnetic Switches Fabricated Using MEMS Technology”, Proceedings: 46thAnnual International Relay Conference: NARM '98, Apr. 1998, pp. 13-1 to 13-4.
John A. Wright, Yu-Chong Tai and Gerald Lilienthal, “A Magnetostatic MEMS Switch for DC Brushless Motor Commutation”, Proceedings Solid State Sensor and Actuator Workshop, Hilton Head, 1998, Jun. 1998, pp. 304-307.
John A. Wright, Yu-Chong Tai, and Shih-Chia Chang, “A Large-Force, Fully-Integrated MEMS Magnetic Actuator”, Transducers '97, 1997 International Conference on Solid State Sensors and Actuators, Chicago, Jun. 16-19, 1997.
Ann, Chong H. & Allen, Mark G., A Fully Integrated Micromagnetic Actuator With A Multilevel Meander Magnetic Core, 1992 IEEE, Solid-State Sensor and Actuator Workshop, Technical Digest, Hilton Head Island, South Carolina, Jun. 22-25, 1992, Technical Digest, pp. 14-17.
English-Language Abstract of DE 10031569, published Feb. 1, 2001, 1 page.
English-Language Abstract of DE 19820821, published Dec. 16, 1999, 1 page.
English-Language Abstract of EP 0780858, published Jun. 25, 1997, 1 page.
English-Language Abstract of EP 0869519, published Oct. 7, 1998, 1 page.
English-Language Abstract of FR 2572546, published May 2, 1986, 1 page.
English-Language Abstract of JP 4275519, published Oct. 1, 1992, 1 page.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Latching micro-magnetic switch with improved thermal... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Latching micro-magnetic switch with improved thermal..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Latching micro-magnetic switch with improved thermal... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3980304

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.