A high velocity aerodynamic projectile having a central body with a forward nd, a rearward end and a longitudinal axis, the forward end of the body has a pedestal coaxially extending outward from the body. The projectile has aft stabilizing fins or a flare rigidly affixed at its rearward end and a forward stablizing means pivotably attached to the pedestal of the central body. The forward stabilizing means consists of a self-aligning projectile nose having its rearward end separated from the for...

A compliant foil bearing comprises a relatively thin bearing foil that is supported in juxtaposed relation to both a shaft and a bearing housing by a pair of sinusoidally folded spacer foils.

A longitudinally compliant PTFE graft is provided by compressing at least a portion of a porous PTFE tube along its longitudinal axis and coating at least the outer wall of the compressed portion of the PTFE tube with a biocompatible elastomer for allowing the compressed portion of the tube to be stretched along the longitudinal axis. The PTFE tube is compressed by pulling the tube over a cylindrical mandrel of like diameter and applying a compression force to the tube along its longitudinal axi...

An improved acoustic baffle for use with underwater hydrophone or acoustic transducer equipment on submarines and the like for attenuating acoustic energy of a noise character emanating from the submarine carrying the hydrophone equipment thereby rendering the hydrophone immune to undesired ambient noise conditions, incorporates a laminated assembly of compliant or spring like elements. One embodiment is characterized by a ribbed member for effecting a spacing of a plurality of rubber tubing typ...

An electrical terminal pin (10) adapted for engagement with a plated-through hole in a printed wiring board backplane. The pin includes at least one end (12) for receiving electrically conductive elements and an S-shaped compliant portion (16) adapted and dimensioned to minimize deformation of the plated-through hole. The compliant portion (16) includes a transition section (17) in which the S-shaped cross section evolves from the square cross section of the end (12) of the pin (10). Because of ...

A rotary coupling device comprises driving and driven elements which are rotatable about a given axis. A coupling member of elastomeric material rotatable about the aforesaid axis is interposed between such elements for imparting rotary motion therebetween. The coupling member is connected at spaced circumferential points to the driving and driven elements, respectively, and is so constructed as to have two different torque characteristics, the first being resilient in a range of torques varying...

An endoprosthesis is provided which includes a femoral head construction having a compliant metal shell attached thereto. The shell fits into the acetabulum of the hip joint and is spaced apart from a spherical surface of the construction a sufficient distance to permit the shell to flex without exceeding its elastic limit.

A marine compliant riser system is provided for attaching a flexible flowline to a buoyed conduit riser section. The improved system includes a yoke assembly for receiving flexible flowline with a means for retaining a terminal portion of the flexible flowline at a substantially normal catenary departure angle. Support means are mounted at the top of the buoyed section, and gooseneck connection means mounted on the support means for establishing fluid communication between the flexible flowline ...

A curved lead provides a mechanical and electrical connection between a board contact on a circuit board and a chip contact associated with a circuit chip. The chip can be mounted to the circuit board, to a chip carrier or to a multiple-chip module. The curved lead is substantially entirely plated with solder and is formed of a single piece of conductive material. The curved lead has a first surface for connection to the chip contact and a second surface, generally parallel to the first surface,...

A tentering machine having a compliant drive link allows for a considerable rate of stretch in a tentered fabric, web or film without the distortion or bowing frequently observed with the tentering machines of the prior art. The tentering machine includes two conveyor tracks adjacent to and facing one another, each conveyor track having a number of fabric edge holders slidingly directable thereabout. A fabric, web or film, grasped on opposite edges by the fabric edge holders, is conveyed thereby...