Micromachined spinneret

Details Micromachined spinneret Micromachined spinneret

2007-11-06

2007-11-06

Gupta, Yogendra N. (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Means providing a shaping orifice

Plural distinct feed inlets

C425S462000, C425S464000, C425S378200, C425SDIG021, C425S131500

Reexamination Certificate

active

10947969

ABSTRACT:
A micromachined spinneret is disclosed which has one or more orifices through which a fiber-forming material can be extruded to form a fiber. Each orifice is surrounded by a concentric annular orifice which allows the fiber to be temporarily or permanently coated with a co-extrudable material. The micromachined spinneret can be formed by a combination of surface and bulk micromachining.

REFERENCES:
patent: 5064775 (1991-11-01), Chang
patent: 5344690 (1994-09-01), White et al.
patent: 5922477 (1999-07-01), Hoyt et al.
patent: 5932165 (1999-08-01), Corbett
patent: 5965237 (1999-10-01), Bruin et al.
patent: 5989004 (1999-11-01), Cook
patent: 6336801 (2002-01-01), Fish et al.
patent: 6413071 (2002-07-01), Helms et al.
patent: 2002/0134063 (2002-09-01), Berger
patent: 2003/0201560 (2003-10-01), Vollrath
patent: 2004/0086591 (2004-05-01), Vollrath
patent: 2004/0102614 (2004-05-01), Islam
O. Liivak, A. Blye, N. Shah and L.W. Jelinski, “A Microfabricated Wet-Spinning Apparatus to Spin Fibers of Silk Proteins—Property Correlations,”Macromolecules, vol. 31, pp. 2947-2951, 1998.
A. Seidel, O. Liivak and L.W. Jelinski, “Artificial Spinning of Spider Silk,”Macromolecules, vol. 31, pp. 6733-6736, 1998.
S.C. Tseng, C.T. Shi, C.L. Kuo and Y. Cheng, “A New Pattern on Fabrication of Fiber Spinnerets by the LIGA Technology,”Proceedings of the Society of Photooptical Instrumentation Engineers(SPIE), vol. 3680, pp. 518-525, 1999.
J. Radtke, T. Abeln, M. Weikert and F. Dausinger, “High-Precision Micro Cutting of Ceramics with Short-Pulsed Solid-State Lasers,”Proceedings of the Society of Photooptical Instrumentation Engineers(SPIE), vol. 4088, pp. 252-255, 2000.
F. Vollrath and D.P. Knight, “Liquid Crystalline Spinning of Spider Silk,”Nature, vol. 410, pp. 541-548, Mar. 29, 2001.
Y. Cheng, B.-Y. Shew, M.K. Chyu, P.H. Chen, “Ultra-Deep LIGA Process and Its Applications,”Nuclear Instruments and Methods in Physics Research A, vol. 467-468, pp. 1192-1197, 2001.
A. Lazaris, S. Arcidiacono, Y. Huang, J.-F. Zhou, F. Duguay, N. Chretien, E.A. Welsh, J.W. Soares and C.N. Karatzas, “Spider Silk Fibers Spun From Soluble Recombinant Silk Produced in Mammalian Cells,”Science, vol. 295, pp. 472-476, Jan. 18, 2002.
J. Yao, H. Masuda, C. Zhao and T. Asakura, “Artificial Spinning and Characterization of Silk Fiber fromBombyx moriSilk Fibroin in Hexafluoroacetone Hydrate,”Macromolecules, vol. 35, pp. 6-9, 2002.
L. Herbst, J.P. Quitter, G.M. Ray, T. Kuntze, A.O. Weissner, S.V. Govorkov and M. Heglin, “High Peak Power Solid State Laser for Micromachining of Hard Materials,”Proceedings of the Society of Photooptical Instrumentation Engineers(SPIE), vol. 4968, pp. 134-142, 2003.
G.H. Altman, F. Diaz, C. Jakuba, T. Calabro, R.L. Horan, J. Chen, H. Lu, J. Richmond and D.L. Kaplan, “Silk-Based Biomaterials,”Biomaterials, vol. 24, pp. 401-416, 2003.
E.Atkins, “Silk's Secrets,”Nature, vol. 424, p. 1010, Aug. 28, 2003.
H.-J. Jin and D.L. Kaplan, “Mechanism of Silk Processing in Insects and Spiders,”Nature, vol. 424, pp. 1057-1061, Aug. 28, 2003.

Affiliated with

Also associated with

Rating

Micromachined spinneret does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Micromachined spinneret, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Micromachined spinneret will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3823522