Abstract: Apparatus and methods for producing ultrashort optical pulses are described. A high-power, solid-state, passively mode-locked laser can be manufactured in a compact module that can be incorporated into a portable instrument. The mode-locked laser can produce sub-50-ps optical pulses at a repetition rates between 200 MHz and 50 MHz, rates suitable for massively parallel data-acquisition. The optical pulses can be used to generate a reference clock signal for synchronizing data-acquisition and signal-processing electronics of the portable instrument.

Abstract: A fuel storage system has a tank access chamber with improved monitoring, servicing and maintenance capabilities. In particular, the chamber includes a sump monitored by a liquid sensor whose proper function can be automatically checked remotely, e.g., via an electronic controller or remote manual operation. In cases where such a check indicates a need for physical inspection of the sump sensor, the present system provides for sensor removal and installation by service personnel from a location outside the tank access chamber. Thus, the present system facilitates regular inspection and routine or unplanned maintenance without the need for a person to physically enter the tank access chamber.

Abstract: A fuel storage system has a tank access chamber with improved monitoring, servicing and maintenance capabilities. In particular, the chamber includes a sump monitored by a liquid sensor whose proper function can be automatically checked remotely, e.g., via an electronic controller or remote manual operation. In cases where such a check indicates a need for physical inspection of the sump sensor, the present system provides for sensor removal and installation by service personnel from a location outside the tank access chamber. Thus, the present system facilitates regular inspection and routine or unplanned maintenance without the need for a person to physically enter the tank access chamber.

Abstract: A fuel storage system has a tank access chamber with improved monitoring, servicing and maintenance capabilities. In particular, the chamber includes a sump monitored by a liquid sensor whose proper function can be automatically checked remotely, e.g., via an electronic controller or remote manual operation. In cases where such a check indicates a need for physical inspection of the sump sensor, the present system provides for sensor removal and installation by service personnel from a location outside the tank access chamber. Thus, the present system facilitates regular inspection and routine or unplanned maintenance without the need for a person to physically enter the tank access chamber.

Abstract: A fuel storage system has a tank access chamber with improved monitoring, servicing and maintenance capabilities. In particular, the chamber includes a sump monitored by a liquid sensor whose proper function can be automatically checked remotely, e.g., via an electronic controller or remote manual operation. In cases where such a check indicates a need for physical inspection of the sump sensor, the present system provides for sensor removal and installation by service personnel from a location outside the tank access chamber. Thus, the present system facilitates regular inspection and routine or unplanned maintenance without the need for a person to physically enter the tank access chamber.

Abstract: A photovoltaic (PV) module framing and coupling system enables the attachment of PV modules to a roof or other mounting surface without requiring the use of separate structural support members which attach directly to and span between multiple PV modules in a formed PV array. The apparatus provides a parallel coupling for securely interlocking the outside surfaces of parallel frame members together in a side to side arrangement to form an array with improved structural load distribution. The coupling may attach to a slot in the frame at substantially any position along the length of the frame thereby enabling the interconnection of adjacent PV modules along both an x and y axis. The apparatus may further provide a rotating portion and locking portion, mounting brackets for direct connection to a mounting surface, grounding teeth, and a twist-lock engagement means for interlocking and aligning PV modules in the array.

Abstract: Foothold system on a sloped roof includes first flashing block with hole, second flashing block with hole, moveable foothold with hook portion removably inserted into first flashing block hole and lower portion comprising a step portion extending down-roof from hook portion, the moveable foothold moveable from first flashing block to second flashing block via unhooking hook portion from first flashing block and hooking hook portion to second flashing block; flashing blocks may include mounting portion to receive mounting foot for photovoltaic array, and/or step portion sized to receive and support weight of foot of human working on sloped roof.

Abstract: A method, system and apparatus are disclosed regarding an attachment system for solar equipment, sometimes referred to as a flashing device allowing quick and easy assembling of the solar equipment into an array or other combination in a sturdy and durable manner. In examples of the present technology, a flashing device may include a flashing plate which may contain one or more raised features to further direct and control the flow of liquid over the flashing plate. The flashing device may also contain a fluid restrictor such as a seal or part of a seal usually held within an aperture of a block having a skyward facing essentially or substantially flat surface. One or more various items of solar equipment may be attached to the essentially flat surface of the block. Also disclosed are adjustable mounting feet which may be installed in connection with other solar equipment.

Abstract: A system and method are disclosed for quickly and easily assembling PV modules into a PV array in a sturdy and durable manner. In examples of the present technology, the system includes various couplings having a first engaging portion adapted to engage a first PV module and a second engaging portion adapted to engage a second PV module. At least one of the engaging portions allows variable positioning of the engaged PV module along the engaging portion.

Abstract: Foothold system on a sloped roof includes first flashing block with hole, second flashing block with hole, moveable foothold with hook portion removably inserted into first flashing block hole and lower portion comprising a step portion extending down-roof from hook portion, the moveable foothold moveable from first flashing block to second flashing block via unhooking hook portion from first flashing block and hooking hook portion to second flashing block; flashing blocks may include mounting portion to receive mounting foot for photovoltaic array, and/or step portion sized to receive and support weight of foot of human working on sloped roof.

Abstract: An imitation solar module for structural and aesthetic use in an array of electricity generating solar modules. The imitation solar module having a non-standard shape and a visual representation such as a decal of an actual solar module surface thereon. The imitation solar module includes triangular shapes for use in staggered module arrays.

Abstract: A system and apparatus are disclosed including PV modules having a frame allowing quick and easy assembling of the PV modules into a PV array in a sturdy and durable manner. In examples of the present technology, the PV modules may have a grooved frame where the groove is provided at an angle with respect to a planar surface of the modules. Various couplings may engage within the groove to assemble the PV modules into the PV array with a pivot-fit connection. Further examples of the present technology operate with PV modules having frames without grooves, or with PV modules where the frame is omitted altogether.

Abstract: A system and apparatus are disclosed for quickly and easily assembling PV modules into a PV array in a sturdy and durable manner. In examples of the present technology, the system includes a leveling foot for engaging a PV module and supporting the PV module on a support structure. The leveling foot allow adjustment of the height of engaged PV modules relative to the support structure.

Abstract: A photovoltaic (PV) module framing and coupling system enables the attachment of PV modules to a roof or other mounting surface without requiring the use of separate structural support members which attach directly to and span between multiple PV modules in a formed PV array. The inventive apparatus provides a parallel coupling for securely interlocking the outside surfaces of parallel frame members together in a side to side arrangement to form an array with improved structural load distribution. The inventive coupling member may attach to a slot in the frame at substantially any position along the length of the frame thereby enabling the interconnection of adjacent PV modules along both an x and y axis.

Abstract: A method, system and apparatus are disclosed regarding an attachment system for solar equipment, sometimes referred to as a flashing device allowing quick and easy assembling of the solar equipment into an array or other combination in a sturdy and durable manner. In examples of the present technology, a flashing device may include a flashing plate which may contain one or more raised features to further direct and control the flow of liquid over the flashing plate. The flashing device may also contain a fluid restrictor such as a seal or part of a seal usually held within an aperture of a block having a skyward facing essentially or substantially flat surface. One or more various items of solar equipment may be attached to the essentially flat surface of the block. Also disclosed are adjustable mounting feet which may be installed in connection with other solar equipment.

Abstract: The method and apparatus for forming and mounting a photovoltaic (PV) array of this invention is disclosed and provides, without limitation, (i) a PV module framing and coupling system which enables the attachment of PV modules to a roof or other mounting surface without requiring the use of separate structural support members which attach directly to and span between multiple PV modules in a formed PV array and (ii) an ancillary device attachment bracket, system, and method. One embodiment may provide a slidable parallel coupling for securely interlocking the outside surfaces of parallel frame members together in a side to side arrangement, thereby enabling the formation of a PV array with improved structural load distribution.

Abstract: A method, system and apparatus are disclosed regarding an attachment system for solar equipment, sometimes referred to as a flashing device allowing quick and easy assembling of the solar equipment into an array or other combination in a sturdy and durable manner. In examples of the present technology, a flashing device may include a flashing plate which may contain one or more raised features to further direct and control the flow of liquid over the flashing plate. The flashing device may also contain a fluid restrictor such as a seal or part of a seal usually held within an aperture of a block having a skyward facing essentially or substantially flat surface. One or more various items of solar equipment may be attached to the essentially flat surface of the block. Also disclosed are adjustable mounting feet which may be installed in connection with other solar equipment.

Abstract: A PV module framing and coupling system which enables the attachment of PV modules to a roof or other mounting surface without requiring the use of separate structural support members which attach directly to and span between multiple PV modules in a formed PV array and a cable management system that holds, directs, organizes, and otherwise manages cables, wires, cord, and similar components of and relating to a PV array.

Abstract: A photovoltaic (PV) module framing and coupling system enables the attachment of PV modules to a roof or other mounting surface without requiring the use of separate structural support members which attach directly to and span between multiple PV modules in a formed PV array. The apparatus provides a parallel coupling for securely interlocking the outside surfaces of parallel frame members together in a side to side arrangement to form an array with improved structural load distribution. The coupling may attach to a slot in the frame at substantially any position along the length of the frame thereby enabling the interconnection of adjacent PV modules along both an x and y axis. The apparatus may further provide a rotating portion and locking portion, mounting brackets for direct connection to a mounting surface, grounding teeth, and a twist-lock engagement means for interlocking and aligning PV modules in the array.

Abstract: A photovoltaic (PV) module framing and coupling system enables the attachment of PV modules to a roof or other mounting surface without requiring the use of separate structural support members which attach directly to and span between multiple PV modules in a formed PV array. The apparatus provides a parallel coupling for securely interlocking the outside surfaces of parallel frame members together in a side to side arrangement to form an array with improved structural load distribution. The coupling may attach to a slot in the frame at substantially any position along the length of the frame thereby enabling the interconnection of adjacent PV modules along both an x and y axis. The apparatus may further provide a rotating portion and locking portion, mounting brackets for direct connection to a mounting surface, grounding teeth, and a twist-lock engagement means for interlocking and aligning PV modules in the array.