Abstract: A wireless beacon and sensor node network can be integrated with a wireless network at a worksite to enable the operators of the vertical transport apparatuses to efficiency optimize operations by automatically detecting worker and object location and quantity throughout a worksite and prioritizing vertical transport apparatus movement based on transport and/or material requests from workers in physical proximity to the vertical transport apparatus/system.

Abstract: An operable ramp is moveable between a stowed position and a deployed position to provide a sloped transition between upper and lower surfaces of an architectural setting. The operable ramp includes a ramp panel and a drive assembly coupled to a first end of the ramp panel so that the drive assembly reciprocates the operable ramp between the stowed position and the deployed position. The drive assembly defines a maximum elevation of the first end of the ramp panel when the operable ramp is in the deployed position and also defines a minimum elevation of the first end of the ramp panel when the operable ramp is in the stowed position. The maximum elevation is selectively adjustable relative to the minimum elevation.

Abstract: An operable ramp is moveable between stowed and deployed positions. In the deployed position, the ramp provides a sloped transition surface that extends from a lower surface of an architectural setting to an upper surface of the architectural setting. The operable ramp includes a ramp panel and a housing. The height of an upper surface of the housing is selectively adjustable. The operable ramp further includes a drive assembly that is at least partially disposed within the housing. The drive assembly has a drive linkage coupled to a first end of the ramp panel to move the operable ramp between the stowed and deployed positions. The drive linkage raises the first end of the ramp panel to a first elevation when the upper surface of the housing is at a first height and to a second elevation when the upper surface of the housing is at a second height.

Abstract: An operable ramp is moveable between a stowed position and a deployed position to provide a sloped transition surface between upper and lower surfaces of an architectural setting. The operable ramp includes a housing disposed on the lower surface of the architectural setting and having a selectively adjustable height. A first ramp panel has a support element extending from a first end. The operable ramp also includes a drive assembly located within the housing. The drive assembly includes an endless loop coupled to an end of the support element to move the operable ramp between the stowed position and the deployed position. The endless loop has a linear portion located between first and second arcuate portions. The endless loop raises the end of the support element to deploy first ramp panel. The distance between the first and second arcuate portions is selectively adjustable.

Abstract: An operable ramp is moveable between a raised (step) position and a lowered (ramp) position. The operable ramp includes a first panel rotatably coupled about a first axis, the first axis that moves back and forth as the operable ramp reciprocates between the raised and lowered positions. A second panel is rotatably coupled to the first panel and extends downward from the first panel in the raised position. The second panel also rotates about a fixed second axis. The first and second panels cooperate to provide an inclined surface when the operable ramp is in the lowered position. A linkage selectively rotates the first panel about the first axis. The operable ramp further includes a third panel rotatable about a fixed third axis. The third provides a surface between the first panel and a fixed panel when the operable ramp is in the raised position.

Abstract: An operable ramp is moveable between a raised position, in which the ramp forms a pair of steps, and a lowered position, in which the operable ramp provides an inclined surface. The operable ramp includes a first panel rotatably coupled about a first axis that moves back and forth when the operable ramp moves between the lowered position and the raised position. A link is rotatably coupled to the first panel about a second axis and is itself rotatable about a fixed third axis. A second panel is rotatably coupled to the link between the second axis and the third axis, and a third panel is rotatably coupled to the second panel about a fourth axis. When the ramp moves between the raised and lowered positions, the fourth axis rotates about a fixed fifth axis. A linkage selectively rotates the first panel about the first axis.

Abstract: This assenbly (11) is an independent stabilizing/ballast weight frame (24) for under water scuba equipment. Frame (24) straps onto the external surface of any conventional scuba diving tank (22). Stabilizing legs (30L and 30R) provide a three point triangular support system to hold) the scuba tank (22) upright in a stable position with a lowered center of gravity. This aids the diver while he is getting into the equipment. Two separate and independent ballast weight modules (26L and 26R) attach to the frame (24). The weight ballast modules (26L and 26R) can be released by two separate and independent mechanisms. The weight frame (24) positions the ballast modules (26L and 26R) on either side and out in front of the divers waist to counterbalance the weight of the scuba diving tank (22), provide a low center of gravity and provide keel ballast in the horizontal swimming position. A waist belt (34) and frame (24) secures around the divers waist.