Textiles: braiding – netting – and lace making – Processes and products – Elastic
Reexamination Certificate
1997-10-02
2001-06-26
Stryjewski, William (Department: 3741)
Textiles: braiding, netting, and lace making
Processes and products
Elastic
C087S001000, C087S013000, C087S005000, C087S008000
Reexamination Certificate
active
06250193
ABSTRACT:
FIELD OF THE INVENTION
This invention relates generally to braided structures and more particularly to braided structures having elastic bias strands or filaments.
DESCRIPTION OF RELATED ART
It is known to use braided sleeving to form rigid tubular parts such as fiber-reinforced plastic parts. The braided sleeving is typically impregnated with a resin and placed in or over a mold or mandrel or core and subjected to heat and pressure to form or cure the resin and form the tubular part. See U.S. Pat. Nos. 5,409,651 and 4,774,043, the contents of which are incorporated by reference.
Biaxial and triaxial braided sleeving is known. Triaxial braided sleeving is preferable to biaxial braided sleeving in many situations because triaxial sleeving generally produces a finished part which has superior mechanical properties, principally strength and stiffness.
A problem with triaxial braided sleeving is that it has little stretchability 1) longitudinally and 2) transversely to the longitudinal axis of the sleeve. On the other hand, biaxial braided sleeving is generally stretchable both longitudinally and transversely (radially). If expanded longitudinally, a biaxial braid will contract radially; if expanded radially, it will contract longitudinally. This permits biaxial braided sleeving to be utilized to form tubular parts having varying cross-sections, i.e. alternatively smaller and larger cross-sections or diameters.
There is a need for a triaxial braided sleeving which has the ability to conform to a tubular shape having varying cross-sections. There is also a need for a fiber-reinforced plastic part made from such sleeving.
SUMMARY OF THE INVENTION
A triaxial braided sleeve is provided, comprising first bias strands extending in a first helical direction, second bias strands extending in a second helical direction different from said first helical direction, and axial reinforcement strands, said first bias strands, second bias strands and axial reinforcement strands being braided together to form a triaxial braided sleeve, all of the bias strands of the sleeve being elastic strands. A method of making the triaxial braided sleeve is also provided, along with fiber-reinforced plastic parts made utilizing the invented triaxial braided sleeve.
REFERENCES:
patent: Re. 28155 (1974-09-01), Dow
patent: 1473427 (1923-11-01), Handley
patent: 1887643 (1932-11-01), Huber
patent: 2009075 (1935-07-01), Thompson
patent: 2114274 (1938-04-01), Huppert
patent: 2396483 (1946-03-01), Alderfer
patent: 2935096 (1960-05-01), Cole
patent: 2948182 (1960-08-01), Huppertsberg
patent: 3442738 (1969-05-01), Scott et al.
patent: 3625809 (1971-12-01), Caroselli et al.
patent: 3862878 (1975-01-01), Azuma
patent: 3896206 (1975-07-01), Beaver et al.
patent: 3962394 (1976-06-01), Hall
patent: 3974012 (1976-08-01), Hogarth
patent: 4015641 (1977-04-01), Goff, Jr. et al.
patent: 4047993 (1977-09-01), Bartelmuss
patent: 4055201 (1977-10-01), Fowler et al.
patent: 4055697 (1977-10-01), Schmanski
patent: 4191219 (1980-03-01), Kaye
patent: 4228207 (1980-10-01), Porte et al.
patent: 4263361 (1981-04-01), Hodes et al.
patent: 4283446 (1981-08-01), McLain
patent: 4298562 (1981-11-01), Latty
patent: 4380483 (1983-04-01), Kliger
patent: 4380523 (1983-04-01), Lind et al.
patent: 4389269 (1983-06-01), Cooper et al.
patent: 4533321 (1985-08-01), Kidd et al.
patent: 4567917 (1986-02-01), Millard
patent: 4610688 (1986-09-01), Silvestrini et al.
patent: 4629225 (1986-12-01), Rowsey
patent: 4741087 (1988-05-01), Plummer
patent: 4754685 (1988-07-01), Kite et al.
patent: 4756942 (1988-07-01), Aichele
patent: 4771518 (1988-09-01), LaPointe et al.
patent: 4774043 (1988-09-01), Beckmann
patent: 4777859 (1988-10-01), Plummer, Jr.
patent: 4834755 (1989-05-01), Silvestrini et al.
patent: 4907624 (1990-03-01), Jonasson
patent: 4940617 (1990-07-01), Baurmeister
patent: 4946721 (1990-08-01), Kindervater et al.
patent: 4976812 (1990-12-01), McConnell et al.
patent: 4983240 (1991-01-01), Orkin et al.
patent: 4992313 (1991-02-01), Shobert et al.
patent: 5000228 (1991-03-01), Manent et al.
patent: 5013507 (1991-05-01), Julien et al.
patent: 5028464 (1991-07-01), Shigetoh
patent: 5048441 (1991-09-01), Quigley
patent: 5100713 (1992-03-01), Homma et al.
patent: 5108533 (1992-04-01), Long, Jr. et al.
patent: 5125179 (1992-06-01), Campbell et al.
patent: 5186992 (1993-02-01), Kite, III
patent: 5217770 (1993-06-01), Morris, Jr. et al.
patent: 5256459 (1993-10-01), Carlson
patent: 5312660 (1994-05-01), Morris et al.
patent: 5409651 (1995-04-01), Head
patent: 5419231 (1995-05-01), Earle, III et al.
patent: 5419949 (1995-05-01), Marx et al.
patent: 5613522 (1997-03-01), Ford et al.
patent: 5619903 (1997-04-01), Rogers et al.
patent: 5700533 (1997-12-01), You
patent: 155746 (1932-09-01), None
patent: 0113196 (1984-07-01), None
patent: 0134864 (1985-03-01), None
patent: 2501579 (1982-09-01), None
patent: 2510624 (1983-02-01), None
patent: 2583072 (1986-12-01), None
patent: 62-117732 (1987-05-01), None
patent: 2-293434 (1989-05-01), None
patent: 1-286832 (1989-11-01), None
patent: 4-327249 (1992-11-01), None
patent: 2505391 (1996-04-01), None
patent: 1044880A (1983-09-01), None
patent: WO91/14034 (1991-09-01), None
patent: WO92/06235 (1992-04-01), None
International Preliminary Examination Report, dated Oct. 20, 1998, which was received in the corresponding international application.
A & P Technology, Inc.
Darby & Darby
Stryjewski William
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