International Telephone and Telegraph Corporation

Other

Bruce K Arnold

Ronald L McCartney

Vaughn C Hogan

Lawrence Schwartz

Stephen K Yamamoto

Elias A Moreno

A fixture assembly for holding printed circuit boards (PCBAs) during processing such as wave soldering. The fixture assembly consists of multiple plates which are assembled to define protective cavities and recesses for masking components such as surface mounted devices and define apertures so that pass-through leads are exposed at the bottom or secondary side of the bottom plate. An optional weighting member may be used to firmly secure the PCBA during processing. The multi-plate structure is cost effective reducing milling and machining operations normally attendant to the fabrication of a fixture assembly. In another embodiment, a stencil is provided with cut-outs corresponding to protected area on the PCBA. A soluble masking material is applied to the stencil and board prior to wave soldering. The masking material is subsequently rinsed away.

Laminated printed circuit board fixture assembly and method

A fixture assembly for holding printed circuit boards (PCBAs) during processing such as wave soldering. The fixture assembly consists of multiple plates which are assembled to define protective cavities and recesses for masking components such as surface mount devices and define apertures so that pass-through leads are exposed at the bottom or secondary side of the bottom plate. An optional weighting member may be used to firmly secure the PCBA during processing. The multi-plate structure is cost effective reducing milling and machining operations normally attendant to the fabrication of a fixture assembly.

A plastic electrical connector member is disclosed having bayonet pins thereon adapted to engage bayonet slots on a coupling nut of a mating connector member. The bayonet pins are formed on a metal band which surrounds the plastic body of the first connector member. The pins are hollow and filled with a molding compound which is integral with the plastic body so that movement of the bayonet pin band on the plastic body is prevented.

Bayonet coupling for electrical connector

A stamped contact is disclosed having an integral closed crimp barrel suitable for military/aerospace applications. In one embodiment, the crimp barrel has a rectangular cross section. A method is disclosed for making the contact in which the contact is stamped from a sheet having a relatively thick marginal edge which provides the rectangular crimp barrel for the contact. The bore in the barrel is drilled after the stamping operation.

Electrical contact and method of making same

A connector for coupling a pair of single optical fibers is disclosed. The connector comprises a base plate having a V-groove in its upper surface having a transverse cross-section of an equilateral triangle. Two sets of three equal diameter cylindrical rods lay in the groove each defining an interstitial space therebetween which receives an optical fiber. The sets of rods have mating end faces which abut each other in the groove. A compression plate is mounted over the base plate to arrange the rods in the V-groove so that the centers of the rods are disposed at the vertices of the same equilateral triangle so that the fibers in the interstitial spaces between the rods will become precisely laterally aligned. The groove in the base plate may contain a larger number of rods for aligning a plurality of optical fibers within the interstices defined by the rods. The groove may also have the configuration of a truncated equilateral triangle. A flat cable single optical fiber connector is also disclosed.

Single optical fiber connector

An alignment sleeve for insuring the lateral alignment of a pair of abutting fiber optic cable ends which are inserted into a connector in a light transmissive relationship. The alignment device is in the form of an elongated, generally tubular, relatively thin-walled, hollow sleeve having a mid-section which includes three inwardly projecting portions regularly spaced about the sleeve. The inserted fiber optic cables abut in the mid-region of the sleeve and are laterally aligned by the inwardly directed forces thereby applied.

Fiber optic contact alignment device

An electrical connector in which two rows of resilient contacts are mounted in a connector housing on opposite sides of a slot which is adapted to receive a printed circuit board or similar electrical component therein. The end portion of the spring contacting section of each contact is reversely bent in a direction away from the slot. A vertically movable contact shifting element is disposed between the spring contacting sections and the reversely bent end portions of the contacts in each row of contacts. A cam actuator is operated to move the contact shifting elements upwardly against the reverse bent end portions of the contacts thereby deflecting the spring contacting sections away from the slot so that a printed circuit board may be inserted therein with zero insertion force. Teeth are provided on the contact shifting element and cam actuator which interlock and thereby restrict upward movement of the contact shifting element except during operation of the cam actuator.

Zero insertion force connector

A connector for coupling a pair of single optical fibers is disclosed. The connector comprises a deformable elastomeric alignment element having a bore therethrough having a central uniform diameter portion and outwardly tapered end portions. Two sets of three equal diameter cylindrical rods are mounted in the opposite ends of the bore. Each set of rods defines an interstitial space therebetween which receives an optical fiber. The sets of rods have mating end faces which abut each other in the bore. The rods of each set have an interference fit in the central portion of the bore causing the rods to be resiliently compressed inwardly to engage each other and the fiber therebetween. By the compression of the rods, the rods of each set are disposed at the vertices of an equilateral triangle so that the fibers in the interstitial spaces between the rods become precisely laterally aligned. The number of rods in each set may exceed three so that a plurality of interstitial spaces are defined by the rods for coupling more than one pair of single optical fibers.

Single optical fiber connector utilizing elastomeric alignment device

A connector is disclosed for a fiber optic cable having one or more single optical fibers. A restraint member is fixedly attached to the strength member of the fiber optic cable. The restraint member is removably mounted in the rear section of a yoke while contacts terminated to the optical fibers are releasably mounted on the forward section of the yoke. The cable restraint member provides means so that the contacts may be positioned at equal distances from the end of the cable and the yoke permits the terminated fibers to be mounted in the connector without overstressing the fibers.

Fiber optic connector

An electrical connector to act as a switch and to provide a fail-safe closure or open indication of a cargo door, wherein first and second telescoping tubes carry a socket and a pin, respectively, and one of the tubes is loosely mounted from the door or a fixed structure in a ball and socket joint.

Electrical connector

A fiber optic cable for use in a fiber optic connector has a protective sleeve pressed on the end of the fiber optic bundle of the cable with an inwardly extending flange which forms a protective spacer for the end surface of the bundle so that when two cables are mated in abutting relationship the end surfaces of the fiber bundles are spaced apart, preventing end surface bundle scratching which causes excessive light diffusion and results in light reception losses.

Growing community of inventors

El Toro, CA, United States of America

Bruce K Arnold