Abstract: Submitted is a modular stationary portable photovoltaic solar powered electrical generation, storage and supply device and light tower. The device consists of an elongated cube or rectangular prism shaped support structure with a flat base, flat sides and a flat decked top to form a protective crate shaped module when the various components, such as the solar panel arrays, telescoping mast, and light assembly or outriggers of the device are retracted to where the boundaries may be defined by the perimeters of the cube or prism. This modular design can allow for the modules to be stored, loaded, or shipped quickly, efficiently, and in greater quantities on flatbeds, in shipping containers, in warehouses, and other settings and modes where they can not only be packed end to end and side to side with no unused space, but can also be stacked up to three modules high for significantly higher storage density.

Abstract: Submitted is a modular stationary portable photovoltaic solar powered electrical generation, storage and supply device and light tower. The device consists of an elongated cube or rectangular prism shaped support structure with a flat base, flat sides and a flat decked top to form a protective crate shaped module when the various components, such as the solar panel arrays, telescoping mast, and light assembly or outriggers of the device are retracted to where the boundaries may be defined by the perimeters of the cube or prism. This modular design can allow for the modules to be stored, loaded, or shipped quickly, efficiently, and in greater quantities on flatbeds, in shipping containers, in warehouses, and other settings and modes where they can not only be packed end to end and side to side with no unused space, but can also be stacked up to three modules high for significantly higher storage density.

Abstract: An embodiment of the invention involves a method for servicing a choke valve that includes disconnecting a choke actuator and at least one internal valve component engaged therewith from the choke valve body of the choke valve and moving the same in a generally linear path away from the choke valve body along the axis of the choke valve body.

Abstract: The present invention relates to an apparatus for use in field servicing a choke valve system. The apparatus is used for lifting, manipulating, and handling the heavy components of hydraulic choke valves. The apparatus includes an elongated track, a choke valve support structure, a trolley that selectably reciprocates along a length of the trolley, and an attachment mechanism for attaching a choke actuator to the trolley.

Abstract: The present invention relates to a mechanism for preventing damage to the actuator of a hydraulic choke valve in the event of excessive backpressure on the outlet of the choke. The backpressure relief device is applicable to a choke valve which meters flow from a high pressure annular region around the axially reciprocable choke throttling member into a low pressure exit channel coaxial with the throttling member. In particular, a shearable means is used to connect the reciprocable control shank of the actuator to the throttling valve member of the choke valve. In the event of excessive pressure on the exit channel of the choke valve, the shearable means will shear, thereby fully opening the valve and permitting the excessive pressure to escape. The shearable means is readily replaced so that the valve easily can be put back into operating condition.

Abstract: Novel 5-fluoroacylamino-4-nitro-1-aryl-pyrazoles of the formula ##STR1## in which R represents alkyl which is substituted by fluorine andAr represents in each case optionally substituted phenyl or pyridyl,exhibit herbicidal and plant growth-regulating activity. The nitro-free corresponding intermediates are also novel.