Abstract: An aerial lift that is interlocked with a fall-protection safety apparatus and may be further interlocked with at least one additional safety apparatus. The aerial lift is equipped with a monitoring system that is configured to detect whether a connector of a safety line of the fall-protection apparatus appears to be connected to a safety harness of a user of the aerial lift.

Abstract: Methods for segmenting the reflected light of an illumination source having a characteristic wavelength from background illumination (i.e. clutter) in structured lighting systems can comprise pulsing the light source used to illuminate a scene, pulsing the light source synchronously with the opening of a shutter in an imaging device, estimating the contribution of background clutter by interpolation of images of the scene collected at multiple spectral bands not including the characteristic wavelength and subtracting the estimated background contribution from an image of the scene comprising the wavelength of the light source and, placing a polarizing filter between the imaging device and the scene, where the illumination source can be polarized in the same orientation as the polarizing filter.

Abstract: A floatable park that includes a trampoline and a first inflatable object attached to the trampoline. The first inflatable object is constructed to support a human being thereon. The park is floatable on water.

Abstract: A Drill Bit detector for use with numerically controlled drilling machine capable of sensing missing or broken Drill Bits in the range of 1 mil to 30 mils in diameter, or larger, is described. An infrared emitting diode is driven at a predetermined frequency with the pulsed light being directed through fiber optic cable directed at a portion of the Drill Bit to be detected. A change of light intensity occurring when a Drill Bit is missing is detected and the pulsed light detected converted to a pulsating electrical signal at the input frequency of the pulse light source. A frequency responsive circuit converts the pulsating electrical circuit to a digital signal indicative of the absence of the sensed Drill Bit. A timer determines whether or not the sensed digital signal occurs for a predetermined threshold time period, and causes it to be ignored as spurious if less than the predetermined time interval, or causes the drilling machine operation to be halted if occurring longer than the threshold time period.