Abstract: The presently disclosed technology is directed toward the removal of plugs in a pipeline segment by installing one or more clamping devices onto a pipeline. The clamping device will have the ability to access the inside of the pipeline segment and inject media designed to dissolve the plug.

Abstract: A method for diagnosing an abnormality of an archery bow is provided. The method includes detecting, by one or more controllers, an operating condition of the archery bow from at least one onboard monitoring device of the archery bow, and comparing, by the one or more controllers, the operating condition to a threshold operating condition. The method further includes identifying, by the one or more controllers, an abnormal condition based on the comparing of the operating condition to the threshold operating condition, and presenting, by the one or more controllers, the abnormal condition to a user. A non-transitory computer readable medium for performing the method is also provided.

Abstract: A limb for an archery bow is provided. The limb includes an outer elongate member, an inner elongate member, and a core member. The outer elongate member is formed of a first material and includes an interior surface and an exterior surface. The inner elongate member is formed of a second material and includes an interior surface and an exterior surface. The core member is formed of a third material and is sandwiched between the outer elongate member and the inner elongate member. The core member is coupled with at least a portion of each of the interior surfaces of the outer elongate member and the inner elongate member. The outer elongate member and the inner elongate member are configured to move relative to each other when the limb is bent. The first material and the second material are each stiffer than the third material.

Abstract: An example embodiment includes a remotely controlled pipeline section internal repair device. In some embodiments, the repair apparatus comprises elastomer seal rings that expand between an apparatus internal metal sleeve and the inner diameter of the pipe. The mechanical pressure exerted by the elastomer rings is such that the apparatus contains the internal fluid, as well as prevents ingress of external fluid when the pipeline is submerged.

Abstract: The present invention includes a load frame test device using a plurality of levers about a common pivot point for applying combinations of tensile loading and bending on test articles at magnitudes seen in offshore applications.

Abstract: The present invention includes a load frame test device using a plurality of levers about a common pivot point for applying combinations of tensile loading and bending on test articles at magnitudes seen in offshore applications.

Abstract: A monitoring system for an archery bow is provided. Monitoring devices and methods are also provided.

Abstract: An example embodiment includes a remotely controlled pipeline section internal repair device. In some embodiments, the repair apparatus comprises elastomer seal rings that expand between an apparatus internal metal sleeve and the inner diameter of the pipe. The mechanical pressure exerted by the elastomer rings is such that the apparatus contains the internal fluid, as well as prevents ingress of external fluid when the pipeline is submerged.

Abstract: The presently disclosed technology is directed toward the removal of plugs in a pipeline segment by installing one or more clamping devices onto a pipeline. The clamping device will have the ability to access the inside of the pipeline segment and inject media designed to dissolve the plug.

Abstract: The present invention includes a load frame test device using a plurality of levers about a common pivot point for applying combinations of tensile loading and bending on test articles at magnitudes seen in offshore applications.

Abstract: A crack arrestor apparatus and method for making same by applying layers of a composite material of non-metallic fibers and resin around a length of pipe; the fibers generally aligned with the pipe circumference. The applied layers have a thicker portion in the middle and a thinner portion on the ends. Part of the pipe covered by the thicker portion is then yielded by application of radial force past the elastic limit of the pipe, thereby creating circumferential tension on the composite. At least a portion of the composite remains in circumferential tension upon release of the radial force. The residual stresses in the yielded metal pipe assist to arrest crack propagation. Thereby, the process to arrest a crack in a metal pipe includes maintaining circumferential tension in a composite residing around the pipe while maintaining compressive circumferential residual stress on the metal pipe covered by the composite.

Abstract: A crack arrestor apparatus and method for making same by applying layers of a composite material of non-metallic fibers and resin around a length of pipe; the fibers generally aligned with the pipe circumference. The applied layers have a thicker portion in the middle and a thinner portion on the ends. Part of the pipe covered by the thicker portion is then yielded by application of radial force past the elastic limit of the pipe, thereby creating circumferential tension on the composite. At least a portion of the composite remains in circumferential tension upon release of the radial force. The residual stresses in the yielded metal pipe assist to arrest crack propagation. Thereby, the process to arrest a crack in a metal pipe includes maintaining circumferential tension in a composite residing around the pipe while maintaining compressive circumferential residual stress on the metal pipe covered by the composite.

Abstract: A method and system are provided to reconstruct vibration responses such as stress and fatigue damage at desired locations in a structure from a limited number of vibration measurements at a few locations in the structure. Vibration response measurements can be of any type, e.g. acceleration, angular velocity, strain, etc. The desired locations can be anywhere within the domain of the structure and may include the entire structural domain. Measured vibration responses may be of uniform type or combinations of different types.

Abstract: A method and system are provided to reconstruct vibration responses such as stress and fatigue damage at desired locations in a structure from a limited number of vibration measurements at a few locations in the structure. Vibration response measurements can be of any type, e.g. acceleration, angular velocity, strain, etc. The desired locations can be anywhere within the domain of the structure and may include the entire structural domain. Measured vibration responses may be of uniform type or combinations of different types.

Abstract: The present invention is directed to a drive circuit including a triac which acts as a gate to a storage inductor.

Abstract: An inspection system and method of the type for visually inspecting the interior of a cast structure is provided. The inspection system includes: an elongated member embedded in a cast structure during casting forming a bore in the structure, an illumination source insertable into the bore via a fiber optic cable, an imaging mechanism insertable into the bore via a fiber optic cable, and a monitoring mechanism for viewing an image transmitted from the imaging mechanism via the fiber optic cable. The elongated member may be removable from the structure forming a bore defined by the structure.

Abstract: The present invention is directed to an electro-motional device, specifically piezoelectric pumps. More specifically, the present invention is directed to various piezoelectric pumps such as diaphragm pumps, double acting piston pumps, peristaltic pumps or centrifugal pumps.