公开(公告)号：WO1992005022A1

公开(公告)日：1992-04-02

申请号：PCT/US1990005278

申请日：1990-09-17

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  VIVALDI, Alexander, M. ,  DUSTON, Christopher, J. ,  HALPERT, Pinke

IPC: B28B07/34

CPC classification number: C04B35/622 ,  B22F3/222 ,  B28B1/007 ,  B28B7/342 ,  C04B38/04 ,  C04B35/00 ,  C04B35/565 ,  C04B40/02

Abstract: A light-weight yet sturdy ceramic article, is manufactured by initially forming at least one fugitive core (14) including a main portion (15) and at least one holding portion (16) projecting from the main portion and then positioning the fugitive core (14) in a mold cavity bounded by a multitude of bounding surfaces (11, 12) so that the holding portion (16) holds the main portion (15) at predetermined spacings from all of the bounding surfaces (11, 12). This is followed by filling the mold cavity around the fugitive core (14) with a dense slip constituted by ceramic or metal particles in mixture with a liquid medium to form a ceramic or metal preform (19) embedding the fugitive core (14) in its interior and freezing the ceramic or metal preform, then the fugitive core (14) is dissolved and escapes from the interior of the frozen ceramic or metal preform and finally the ceramic preform is converted into the ceramic article.

Abstract translation: 通过初始形成至少一个包括主要部分（15）的至少一个短暂的芯体（14）和从主要部分突出的至少一个保持部分（16），然后将短暂的芯子（ 14）在由多个边界表面（11,12）限定的模具腔中，使得保持部分（16）将主要部分（15）保持在与所有边界表面（11,12）预定间隔。 随后，以与液体介质混合的陶瓷或金属颗粒构成的致密滑动物填充短纤芯（14）周围的模腔，以形成将其中的短暂核心（14）嵌入其中的陶瓷或金属预制件（19） 内部并冷冻陶瓷或金属预成型件，然后将短纤芯（14）溶解并从冷冻陶瓷或金属预制件的内部逸出，最后将陶瓷预制件转化成陶瓷制品。

公开(公告)号：WO1992004761A1

公开(公告)日：1992-03-19

申请号：PCT/US1991005737

申请日：1991-08-13

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  MOTTIER, Francois, M. ,  WISNER, George, R.

IPC: H02K13/00

CPC classification number: H01R39/04 ,  H01R39/46

Abstract: A commutator arrangement includes a commutator member (11) rotatably mounted on a support (13) and including a plurality of circumferentially adjacent contact pads (17) that are mechanically connected with one another and electrically separated from each other by respective intervening gaps (18), and a number of commutator brushes (14) that are mounted on the support (13) for only substantially radial movements toward and away from the commutator member (11) and are biased toward the latter to establish contact between their respective contact surfaces (22) and those (19) of the pads (17). The lateral edges (20, 21 or 23, 24) bouding one kind of these contact surfaces (19 or 22) circumferentially deviate from those (23, 24 or 20, 21) delimiting the other contact surface kind (22 or 19) over at least a part of their courses such that different portions of such lateral edges (20, 21) are juxtaposed with their counterparts (23, 24) at different times during the relative rotation of the commutator member (11).

公开(公告)号：WO1991010151A1

公开(公告)日：1991-07-11

申请号：PCT/US1990007640

申请日：1990-12-21

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  MOREY, William, W. ,  GLOMB, Walter, L.

IPC: G02B06/34

CPC classification number: G02B6/29322 ,  G02B6/0218 ,  G02B6/022 ,  G02B6/29398 ,  G02F1/0134

Abstract: A temperature compensated embedded grating (13) optical waveguide (10) light filtering device includes an optical fiber having an elongated core (11) in which light is guided toward a core portion of a predetermined limited length that has embedded therein a multitude of grating elements (14) extending with a substantially equal longitudinal spacing substantially normal to the longitudinal axis and collectively constituting a grating that reflects, of the light propagating in the path toward and reaching the grating elements, that of a wavelength within a narrow range about a central wavelength determined by the spacing of the grating elements and by the index of refraction of the material of the core as influenced by the temperature of and longitudinal strains applied to the grating, back into the path for longitudinal propagation therein opposite to the original propagation direction. Each end of the fiber portion is attached to a different one of two compensating members made of materials with such coefficients of thermal expansion relative to one another and to that of the fiber material as to apply to the fiber longitudinal strains the magnitude of which varies with temperature in such a manner that the changes in the central wavelength that are attributable to the changes in the longitudinal strains substantially compensate for those attributable to the changes in the temperature of the grating.

公开(公告)号：WO1990011541A1

公开(公告)日：1990-10-04

申请号：PCT/US1990000988

申请日：1990-02-23

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  SUCHOSKI, Paul, G., Jr. ,  FINDAKLY, Talal, K. ,  LEONBERGER, Frederick, J.

IPC: G02B06/28

CPC classification number: G02B6/2804

Abstract: An optical power star coupler includes a LiNbO3 or LiTaO3 substrate having a major surface for receiving a circuit array of one or more 1 x 2 splitters disposed thereon by a two step proton exchange (TSPE) process, in a geometric pattern to provide an N x M star coupler having high polarization extinction, uniform splitting ratio, and low loss.

公开(公告)号：WO1988008927A1

公开(公告)日：1988-11-17

申请号：PCT/US1988001492

申请日：1988-05-03

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  GUILE, Roy, N. ,  PESCHKE, William, T.

IPC: F02K07/10

CPC classification number: F02K7/10 ,  F05D2260/20 ,  F23R3/20 ,  Y02T50/675

Abstract: A piloting fuel injector assembly for a supersonic ramjet engine has a cowl (24, 70) confining a pilot air portion of the airstream. A conical member (34, 74) produces a subsonic recirculation zone (30, 76) and a shock wave falling within the cowl. Pilot fuel injected (40, 82) upstream of the recirculation zone burns stoichiometrically. The exhaust (38, 86) from the cowl is sonic, producing a shock wave which facilitates ignition of the main fuel injected (46, 84) upstream of the cowl exhaust.

公开(公告)号：WO1987001438A1

公开(公告)日：1987-03-12

申请号：PCT/US1986001798

申请日：1986-09-02

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  WATERS, James, P. ,  FERNALD, Mark, R.

IPC: G01B09/02

CPC classification number: G01B9/02065 ,  G01B9/02057 ,  G01B9/0209 ,  G01J9/02 ,  G01J2009/0226

Abstract: A common optical path interferometric gauge comprises an optical beam (14) that is split into two beams. Both beams are modulated and recombined after introducing an optical path length difference greater than the coherence length of the optical source (12). The combined beam is guided along a common optical path (46) and is subsequently split into reference and measurement beams. The measurement beam is guided along a measurement optical path that includes a moving workpiece surface (60). Both beams are recombined after interposing an optical path length difference therebetween so as to reestablish coherence between portions thereof producing optical interference indicative of the surface (60) movement.

公开(公告)号：WO1985004835A1

公开(公告)日：1985-11-07

申请号：PCT/US1985000714

申请日：1985-04-19

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  LAYDEN, George, K. ,  PREWO, Karl, M.

IPC: B29C25/00

CPC classification number: C03B37/15 ,  C03C14/002 ,  C03C2214/02 ,  C03C2214/20 ,  C04B30/02 ,  C04B35/645 ,  C04B35/80 ,  C04B14/46 ,  C04B40/00

Abstract: Method of making fiber reinforced glass, glass-ceramic or ceramic matrix composite articles. The method comprises forming the matrix material into fibers and then into yarn (10) which is woven or knitted into cloth. The matrix cloth is then cut into preformed shapes and interleaved with preformed pieces of fabric which have been woven or knitted from yarn (12) containing the fiber reinforcement. The yarn (10, 12) of reinforcing fiber (12) and matrix fibers (10) may be formed into a hybrid cloth. A hybrid cloth comprising yarn (14) of both matrix (16) and reinforcing (18) fibers may be formed or a near net structure of these fibers (16, 18) and yarns (10, 12) formed. The preformed structure is then placed in a die and densified under pressure and temperature to form the composite article.

Abstract translation: 制造纤维增强玻璃，玻璃陶瓷或陶瓷基复合材料制品的方法。 该方法包括将基质材料形成纤维，然后形成织物或编织成布料的纱线（10）。 然后将基质布切割成预成型的形状，并与已经由含有纤维增强材料的纱线（12）编织或编织的预成型织物交织。 增强纤维（12）和基质纤维（10）的纱线（10,12）可以形成为混合布。 可以形成包含基体（16）和增强（18）纤维的纱线（14）的混合布，或者形成这些纤维（16,18）和纱线（10,12）的近网结构。 然后将预制结构放置在模具中并在压力和温度下致密化以形成复合制品。

公开(公告)号：WO1985004834A1

公开(公告)日：1985-11-07

申请号：PCT/US1985000715

申请日：1985-04-19

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  PREWO, Karl, M. ,  LAYDEN, George, K.

IPC: B29B11/16

CPC classification number: C03B37/15 ,  C03C14/002 ,  C03C2214/02 ,  C03C2214/06 ,  C04B30/02 ,  C04B35/80 ,  C04B14/38 ,  C04B14/42 ,  C04B40/00

Abstract: Process of forming glass, glass-ceramic or ceramic matrix, fiber reinforced composite articles. The method comprises preparing both the matrix and the reinforcement into fibers, which are then chopped into relatively short lengths. These chopped fibers are then formed into hybrid felt papers comprising a mixture of both reinforcing fibers and matrix fibers. These felt papers are then cut into preforms and stacked one on top of the other to form a lay-up. The lay-up is then placed in a die and densified to form the composite article.

Abstract translation: 形成玻璃，玻璃陶瓷或陶瓷基体，纤维增强复合制品的工艺。 该方法包括将基质和增强物制备成纤维，然后将其切成较短的长度。 然后将这些短切纤维形成为包含增强纤维和基质纤维的混合物的混合毡纸。 然后将这些毡纸切割成预成型件，并将其堆叠在另一个顶部上以形成叠层。 然后将叠层放置在模具中并致密化以形成复合制品。

公开(公告)号：WO1985002802A1

公开(公告)日：1985-07-04

申请号：PCT/US1983002061

申请日：1983-12-27

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  PADDOCK, Jordan, H.

IPC: B23K35/02

CPC classification number: B23K35/0205

Abstract: Resistance welding of a delicate honeycomb sheet (10) to a substrate (12) without damage to the honeycomb is accomplished even when there are irregularities in alignment of the workpieces and electrodes. A generally T-shaped resistance welding electrode (14) is attached to the arm (16) of a welding machine by an attachment tang (20). It has a transversely extending hollow portion (22) made of thin sheet metal. The hollow portion (22) is filled with a material (26) such as an elastomer. The elastomer may comprise silicone rubber. The electrode is thus adapted to make good contact with, and provide even force to the surface (11) of a delicate workpiece (10) being welded to a rigid substrate (12).

Abstract translation: 即使当工件和电极的对准不规则时，也可以实现精密蜂窝片（10）对基板（12）的电焊而不损坏蜂窝。 大致T形的电阻焊接电极（14）通过连接脚（20）附接到焊接机的臂（16）。 它具有由薄金属板制成的横向延伸的中空部分（22）。 中空部分（22）填充有诸如弹性体的材料（26）。 弹性体可以包括硅橡胶。 因此，电极适于与焊接到刚性基板（12）的精密工件（10）的表面（11）进行良好的接触并提供均匀的力。

公开(公告)号：WO1983001536A1

公开(公告)日：1983-04-28

申请号：PCT/US1982001406

申请日：1982-09-30

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  SWINDAL, James, L. ,  GRANTHAM, Daniel, H.

IPC: H01G07/00

CPC classification number: G01L9/0073

Abstract: Transducteur de pression capacitif au silicium (34) comprenant deux gaufres de silicium (14, 32) séparées par un verre au borosilicate (18, 21), l'une des gaufres (14) possédant une base de verre au borosilicate (26) qui est métalisée (30) pour réaliser une plaque d'un condensateur, l'autre plaque étant constituée par la surface de l'une des gaufres de silicium (32). La distance entre la surface supérieure de la base de verre et la surface inférieure de la gaufre de silicium est définie par une partie (18) du verre au borosilicate, la partie (21) du verre au borosilicate possédant la même hauteur que celle de la base de verre (26). Un exemple de réalisation du transducteur (34b) utilise une base de silicium (26b), dans laquelle la partie de verre (21b) assure uniquement la séparation des gaufres de silicium (14b, 32b) avec une capacitance parasite plus faible.