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公开(公告)号：AU7152687A
公开(公告)日：1987-10-29
申请号：AU7152687
申请日：1987-04-13
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FAIZ ROBERT LEE , WALKER WILLIAM J , RAMEY PHILIP , ADAMS KENNETH M , FLONC NICHOLAS P , NGUYEN DEAN
Abstract: A shrinkable foam mandrel that can be easily removed and composite resin transfer molding process that uses the foam mandrel. The foam is dimensionally stable at a first temperature that typically corresponds to the cure temperature of the composite resin. The foam is capable of irreversibly shrinking to less than about 0.5 said foam's original size at a second temperature that is above said first temperature. The foam is encapsulated by a non-stick elastomer skin and covered with fibers. The fiber covered elastomer encapsulated foam is disposed in a female mold cavity and resin is injected into the female mold cavity. The resin and fibers are cured and the resulting composite component is removed from the female mold. The temperature is raised to the second temperature and the elastomer encapsulated foam male mandrel irreversibly shrinks to less than about 0.5 its original size. Finally the shrunken male mandrel is removed from said composite component. These mandrels are a solution to the aerospace industry's flyaway mandrel problem as they are lightweight and can easily be removed from the composite component.
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公开(公告)号：US3923422A
公开(公告)日：1975-12-02
申请号：US51574974
申请日：1974-10-17
Applicant: UNITED TECHNOLOGIES CORP
Inventor： IANNIELLO DANIEL JOHN , FAIZ ROBERT LEE , SAINSBURY-CARTER JOHN BARRY
CPC classification number: B64C27/48
Abstract: A composite helicoptor rotor blade in which fiber tapes are utilized in laminate fashion to build up spar-type strap members which are twisted and wrapped around a vertically extending attachment pin with a taper or wedge construction where a strap wraps around the pin to control tensile load distribution across the width of the strap.
Abstract translation: 一种复合式螺旋桨转子叶片，其中纤维带以层叠的方式用于建立翼形带状构件，其扭曲并缠绕在具有锥形或楔形构造的垂直延伸的附接销周围，其中带缠绕在销上以控制拉伸载荷 分布在带子的宽度上。
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公开(公告)号：BR8702019A
公开(公告)日：1988-02-09
申请号：BR8702019
申请日：1987-04-27
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FAIZ ROBERT LEE , RAMEY PHILIP , FLONC NICHOLAS P , WALKER WILLIAM J , ADAMS KENNETH M , NGUYEN DEAN
Abstract: A shrinkable foam mandrel that can be easily removed and composite resin transfer molding process that uses the foam mandrel. The foam is dimensionally stable at a first temperature that typically corresponds to the cure temperature of the composite resin. The foam is capable of irreversibly shrinking to less than about 0.5 said foam's original size at a second temperature that is above said first temperature. The foam is encapsulated by a non-stick elastomer skin and covered with fibers. The fiber covered elastomer encapsulated foam is disposed in a female mold cavity and resin is injected into the female mold cavity. The resin and fibers are cured and the resulting composite component is removed from the female mold. The temperature is raised to the second temperature and the elastomer encapsulated foam male mandrel irreversibly shrinks to less than about 0.5 its original size. Finally the shrunken male mandrel is removed from said composite component. These mandrels are a solution to the aerospace industry's flyaway mandrel problem as they are lightweight and can easily be removed from the composite component.
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公开(公告)号：NO145830C
公开(公告)日：1982-06-09
申请号：NO792116
申请日：1979-06-25
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FERRIS DONALD LEROY , HIBYAN EDWARD STANLEY , FAIZ ROBERT LEE
Abstract: A helicopter rotor having one or more blades mounted for rotation with the rotor hub and each supported therefrom by an elastomeric bearing, and having a lead-lag damper connected to the blade and the hub and extending substantially parallel to the blade axis, and including the improvement of apparatus for preventing tension loading of the elastomeric bearing as the blade moves radially inwardly as a result of rotor braking.
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公开(公告)号：AU584571B2
公开(公告)日：1989-05-25
申请号：AU7152687
申请日：1987-04-13
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FAIZ ROBERT LEE , WALKER WILLIAM J , RAMEY PHILIP , ADAMS KENNETH M , FLONC NICHOLAS P , NGUYEN DEAN
Abstract: A shrinkable foam mandrel that can be easily removed and composite resin transfer molding process that uses the foam mandrel. The foam is dimensionally stable at a first temperature that typically corresponds to the cure temperature of the composite resin. The foam is capable of irreversibly shrinking to less than about 0.5 said foam's original size at a second temperature that is above said first temperature. The foam is encapsulated by a non-stick elastomer skin and covered with fibers. The fiber covered elastomer encapsulated foam is disposed in a female mold cavity and resin is injected into the female mold cavity. The resin and fibers are cured and the resulting composite component is removed from the female mold. The temperature is raised to the second temperature and the elastomer encapsulated foam male mandrel irreversibly shrinks to less than about 0.5 its original size. Finally the shrunken male mandrel is removed from said composite component. These mandrels are a solution to the aerospace industry's flyaway mandrel problem as they are lightweight and can easily be removed from the composite component.
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Patent Agency Ranking
公开(公告)号：ES2001326A4
公开(公告)日：1988-05-16
申请号：ES87630056
申请日：1987-04-07
Applicant: UNITED TECHNOLOGIES CORP
Inventor： WALKER WILLIAM J , NGUYEN DEAN , FAIZ ROBERT LEE , ADAMS KENNETH M , FLONC NICHOLAS P , RAMEY PHILIP
Abstract: UN MANDRIL DE ESPUMA DE LATEX CONTRAIBLE QUE PUEDE SER FACILMENTE SEPARADO Y UNA RESINA COMPUESTA CAMBIAN EL PROCESO DE MOLDEADO QUE USA EL MANDRIL DE ESPUMA DE LATEX. LA ESPUMA ES DIMENSIONALMENTE ESTABLE A UNA PRIMERA TEMPERATURA QUE CORRESPONDE A LA TEMPERATURA DE FRAGUADO DE LA RESINA COMPUESTA. LA ESPUMA ES CAPAZ DE CONTRAERSE IRREVERSIBLEMENTE A MENOS DE ALREDEDOR DEL 0,5 DEL TAMAÑO ORIGINAL DE LA MISMA A UNA SEGUNDA TEMPERATURA QUE ESTA ALREDEDOR DE LA PRIMERA. LA ESPUMA DE LATEX SE ENCAPSULA MEDIANTE UNA CUBIERTA ELASTOMERICA Y SE CUBRE CON FIBRAS. LA ESPUMA ASI ENCAPSULADA SE DISPONE EN UNA CAVIDAD DE MOLDE HEMBRA Y LA RESINA SE INYECTA EN EL INTERIOR DE DICHA CAVIDAD. LA RESINA Y LAS FIBRAS FRAGUAN Y EL COMPONENTE COMPUESTO SE SEPARA DEL MOLDE HEMBRA. LA TEMPERATURA SE ELEVA A LA SEGUNDA TEMPERATURA Y EL MANDRIL MACHO DE ESPUMA DE LATEX DE ENCAPSULADO ELASTOMERO SE CONTRAE IRREVERSIBLEMENTE A MENOS DE LA MITAD DE SU TAMAÑO ORIGINAL. FINALMENTE EL MANDRIL MACHO CONTRAIDO SE SEPARADE DICHO COMPONENTE COMPUESTO. ESTOS MANDRILES SON UNA SOLUCION PARA LOS PROBLEMAS DE LA INDUSTRIA AEROESPACIAL POR SER MUY LIGEROS DE PESO Y PODER FACILMENTE SEPARARSE DEL COMPONENTE COMPUESTO.
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公开(公告)号：NO792116A
公开(公告)日：1979-12-28
申请号：NO792116
申请日：1979-06-25
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FERRIS DONALD LEROY , HIBYAN EDWARD STANLEY , FAIZ ROBERT LEE
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公开(公告)号：ES2001326B3
公开(公告)日：1991-11-16
申请号：ES87630056
申请日：1987-04-07
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FAIZ ROBERT LEE , WALKER WILLIAM J , RAMEY PHILIP , ADAMS KENNETH M , FLONC NICHOLAS P , NGUYEN DEAN
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公开(公告)号：NO145830B
公开(公告)日：1982-03-01
申请号：NO792116
申请日：1979-06-25
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FERRIS DONALD LEROY , HIBYAN EDWARD STANLEY , FAIZ ROBERT LEE
Abstract: A helicopter rotor having one or more blades mounted for rotation with the rotor hub and each supported therefrom by an elastomeric bearing, and having a lead-lag damper connected to the blade and the hub and extending substantially parallel to the blade axis, and including the improvement of apparatus for preventing tension loading of the elastomeric bearing as the blade moves radially inwardly as a result of rotor braking.
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公开(公告)号：DE3768849D1
公开(公告)日：1991-05-02
申请号：DE3768849
申请日：1987-04-07
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FAIZ ROBERT LEE , WALKER WILLIAM J , RAMEY PHILIP , ADAMS KENNETH M , FLONC NICHOLAS P , NGUYEN DEAN
Abstract: A shrinkable foam mandrel that can be easily removed and composite resin transfer molding process that uses the foam mandrel. The foam is dimensionally stable at a first temperature that typically corresponds to the cure temperature of the composite resin. The foam is capable of irreversibly shrinking to less than about 0.5 said foam's original size at a second temperature that is above said first temperature. The foam is encapsulated by a non-stick elastomer skin and covered with fibers. The fiber covered elastomer encapsulated foam is disposed in a female mold cavity and resin is injected into the female mold cavity. The resin and fibers are cured and the resulting composite component is removed from the female mold. The temperature is raised to the second temperature and the elastomer encapsulated foam male mandrel irreversibly shrinks to less than about 0.5 its original size. Finally the shrunken male mandrel is removed from said composite component. These mandrels are a solution to the aerospace industry's flyaway mandrel problem as they are lightweight and can easily be removed from the composite component.
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