Abstract: A PV roof assembly (6) includes a roof (12) mountable to an electric vehicle (4), and a PV assembly (10) at the upper part of the roof. The PV assembly may be mounted to a separate roof surface (34) or the PV assembly may itself constitute all or part of the roof. The vehicle may include a secondary PV assembly (96) coupled to a display unit (92) to provide an independent indication of the intensity of solar irradiation. The roof may have mounting element recesses (68) to accommodate mounting elements (70) of the PV assembly, the mounting elements configured so as not to shade the PV panel (14). The roof may also be configured to accommodate a global positioning device (80). The roof preferably includes a peripheral gutter (88). The roof body preferably includes hand-hold recesses (90) housing hand-hold elements (42) at positions to provide a horizontal setback (92) from the lateral sides (93) of the roof body.

Abstract: A coiled stent graft (10) is positionable within an AV fistula (4) and optionally into one or both of the artery (9) and the vein (6) to help reduce or eliminate blockages within the blood vessel at the junction (8) between the AV fistula and the blood vessel.

Abstract: An endoluminal prosthesis includes a coiled body and a graft material covering at least part of the coiled body to create a coiled stent graft. The average stent graft diameter to turns width ratio may be about 0.8 to 1 to about 2.4 to 1 when expanded.

Abstract: An endoprosthesis delivery catheter assembly comprises a placement catheter having first and second catheter shafts. A handle includes a body and an actuator mounted to the body for movement relative to the body. The proximal portions of the first and second catheter shafts are mounted to the handle. At least one of the proximal portions of the first and second catheter shafts are drivenly coupled to the actuator so that movement of the actuator causes rotary and/or axial movement of the first and second catheter shafts relative to one another. The actuator may be mounted to the body for both rotary and axial movement relative to the body so that rotary and axial movement of the actuator causes corresponding relative rotary and axial movement of the first and second catheter shafts. The number of turns and/or the length of the coiled endoprosthesis may be selectively changed using a single actuator and then released from the catheter.

Abstract: Each PV assembly of an array of PV assemblies comprises a base, a PV module and a support assembly securing the PV module to a position overlying the upper surface of the base. Vents are formed through the base. A pressure equalization path extends from the outer surface of the PV module, past the peripheral edge of the PV module, to and through at least one of the vents, and to the lower surface of the base to help reduce wind uplift forces on the PV assembly. The PV assemblies may be interengaged, such as by interengaging the bases of adjacent PV assemblies. The base may include a main portion and a cover and the bases of adjacent PV assemblies may be interengaged by securing the covers of adjacent bases together.

Abstract: An embodiment of a placement catheter assembly (2) comprises an inner shaft (10) movably housed within a hollow outer shaft (8). A radially-expansible endoluminal prosthesis (6) is mounted about the inner shaft between the distal ends of the inner and outer shafts. Distal and proximal end release elements (22/28, 16/34), such as pull wires, are carried by the inner and outer shafts and releasably secure the prosthesis to the inner and outer shafts. The prosthesis in the radially contracted state and the distal and proximal end release elements together have a maximum diameter which is at most about equal to the diameter of the distal part (48) of the outer shaft to facilitate placement of the prosthesis.

Abstract: The invention is directed to a PV assembly, for use on a support surface, comprising a base, a PV module, a multi-position module support assembly, securing the module to the base at shipping and inclined-use angles, a deflector, a multi-position deflector support securing the deflector to the base at deflector shipping and deflector inclined-use angles, the module and deflector having opposed edges defining a gap therebetween. The invention permits transport of the PV assemblies in a relatively compact form, thus lowering shipping costs, while facilitating installation of the PV assemblies with the PV module at the proper inclination.

Abstract: Target tissues are accessed and removed using various types of devices and methods.

Abstract: A vascular occlusion-crossing assembly (2) includes an elongate delivery system (4) and a flexible elongate member (6) which passes along the body (34) of the delivery assembly. A laterally-extending, vascular tunica-separation guide (32) helps guide the distal end (36) of the delivery assembly between tunica layers (40, 42, 44) to a position distal of an occlusion (52). The distal portion (30) of a distally moving elongate member, typically a flexible hollow needle, is deflected into this distal lumen (54) on the far side of an occlusion (52). A guidewire (62) may be passed along the elongate member thereby crossing the occlusion.

Abstract: An irrigation timer (2) includes a controller (8) coupleable to a power source (16), user inputs (12) coupled to the controller, controller output terminals (18) coupleable to an irrigation valve actuator (20) and an internal day-of-week and time-of-day clock. The controller may be pre-programmed with a predetermined, known initialization day-of-week and start time-of-day setting so that upon actuation, the clock automatically begins running at that setting, such as Sunday, 6:00 PM. The user inputs may have a single, preset function so that no user input is a multifunction input to help make programming essentially intuitive.

Abstract: A direct-current dimmer switch with low noise. A direct-current switch is turned on relatively slowly to avoid noise generation. Input capacitance of the direct-current switch device works in conjunction with a switch input series resistor to avoid a sharp turn-on characteristic. A set-point is compared against a voltage ramp to generate a pulse provided to the switch input. Essentially the full voltage is supplied to the load during the pulse. In one embodiment, a field-effect transistor with a low series resistance is used as the direct-current switching device. The ramp is generated by an integrator that is turned off at zero crossings of the alternating input line voltage to re-set the integrator. In a further embodiment a detector, such as a passive infra-red detector, is used to turn on the dimmer switch at a pre-set level.

Abstract: The invention is directed to an array of photovoltaic (PV) assemblies mountable to a support surface. Each PV assembly comprises a base, a PV module and a support assembly securing the PV module to a position overlying the upper surface of the base. The base comprises a main member and a cover defining the upper surface of the base; the cover comprises an electrical conductor. An electrical ground connector may be made between the covers of different PV assemblies. The cover may comprise sheet metal and may have an electrically-insulating surface layer. The main member may be a thermal insulator and the cover may comprise a low-emissivity layer. The covers of adjacent PV assemblies may be interengaged so that wind uplift forces on one of the PV assemblies tend to transfer to adjacent the assemblies so to help counteract the wind uplift forces.

Abstract: A stabilized PV system comprises an array of photovoltaic (PV) assemblies mounted to a support surface. Each PV assembly comprises a PV module and a support assembly securing the PV module to a position overlying the support surface. The array of modules is circumscribed by a continuous, belt-like perimeter assembly. Cross strapping, extending above, below or through the array, or some combination of above, below and through the array, secures a first position along the perimeter assembly to at least a second position along the perimeter assembly thereby stabilizing the array against wind uplift forces. The first and second positions may be on opposite sides on the array.

Abstract: A catheter assembly includes a coiled endoluminal prosthesis (122, 190, 198) and a catheter (136) having at least first and second telescoping shafts (138, 140, 142). The prosthesis is releasably engaged to the distal ends (144, 146, 148) of the telescoping shafts. The prosthesis is capable of assuming a second, expanded diameter state from a first, reduced diameter state. The length and number of turns (128) of the coiled prosthesis can be changed by the relative translation and rotation of the shafts. The catheter assembly is especially useful for placing a coiled stent graft (122), in which one turn (132, 134) of the prosthesis has a greater pitch than the adjacent turns, at the intersection (184) of a bifurcation within a blood vessel (182). Remotely viewable marker elements (188, 190, 191, 192, 193, 195, 197) may be used and include a marker element (193, 190A, 197) configured to indicate orientation as well as axial position of the prosthesis.

Abstract: An irrigation timer (2) includes a controller (8), including output signal terminals (18) coupleable to irrigation valve actuators (20) and an internal clock, and user inputs (12). Each irrigation valve actuator is coupleable to an irrigation valve for a watering zone with a watering period setting for each of the watering zones during a watering cycle (96). The controller divides the watering period for each watering zone by an integer n greater than 1 to obtain fractional watering periods (98). This permits each zone to be watered for its fractional watering period during a first fractional watering cycle (100) prior to beginning a second fractional watering cycle n of the fractional watering cycles constitute the watering cycle. The use of fractional watering periods help to spread out watering over a long period of time in each zone.