Abstract: A portable barricade includes a road plate, first and second support posts extending upward from end portions of the road plate, a barricade arm extending between the first and second support posts, and a lift coupled one of the end portions of the barricade arm and a corresponding one of the first and second support posts. Actuation of the lift is configured to slide the barricade arm relative to the first and second support members between a retracted position proximate to the road plate and a deployed position distal from the road plate.

Abstract: A portable barricade includes a road plate, first and second support posts extending upward from end portions of the road plate, a barricade arm extending between the first and second support posts, and a lift coupled one of the end portions of the barricade arm and a corresponding one of the first and second support posts. Actuation of the lift is configured to slide the barricade arm relative to the first and second support members between a retracted position proximate to the road plate and a deployed position distal from the road plate.

Abstract: A portable bollard for arresting motion of a vehicle includes a post, a base plate coupled to the post, a top plate coupled to the post and spaced apart from the base plate along a length of the post, and a tapered member extending from a surface of the top plate facing the base plate to the post. The tapered member tapers from a wider end at the surface of the top plate to a narrower end at the post. The top plate is rotationally offset from the base plate.

Abstract: A portable barricade includes a road plate, first and second support posts extending upward from end portions of the road plate, a barricade arm extending between the first and second support posts, and a lift coupled one of the end portions of the barricade arm and a corresponding one of the first and second support posts. Actuation of the lift is configured to slide the barricade arm relative to the first and second support members between a retracted position proximate to the road plate and a deployed position distal from the road plate.

Abstract: A portable bollard for arresting motion of a vehicle includes a post, a base plate coupled to the post, a top plate coupled to the post and spaced apart from the base plate along a length of the post, and a tapered member extending from a surface of the top plate facing the base plate to the post. The tapered member tapers from a wider end at the surface of the top plate to a narrower end at the post. The top plate is rotationally offset from the base plate.

Abstract: A portable bollard for arresting motion of a vehicle includes a post, a base plate coupled to the post, a top plate coupled to the post and spaced apart from the base plate along a length of the post, and a tapered member extending from a surface of the top plate facing the base plate to the post. The tapered member tapers from a wider end at the surface of the top plate to a narrower end at the post. The top plate is rotationally offset from the base plate.

Abstract: A portable bollard for arresting motion of a vehicle includes a post, a base plate coupled to the post, a top plate coupled to the post and spaced apart from the base plate along a length of the post, and a tapered member extending from a surface of the top plate facing the base plate to the post. The tapered member tapers from a wider end at the surface of the top plate to a narrower end at the post. The top plate is rotationally offset from the base plate.

Abstract: A modular multi-channel automated medical analyzer device is disclosed, characterized by use of an ion selective electrode and/or enzymatic electrode/wash cell system which permits rapid analysis of various substances of interest contained within undiluted body fluids such as whole blood, serum and/or plasma. The ion selective electrode and/or the enzymatic electrode are disposed upon a probe which automatically axially reciprocates downwardly in a simple manipulative motion between an open-ended reference wash cell and a sample cup bearing the body fluid specimen to be analyzed. The wash cell includes an inlet port and one or more outlet ports through which is circulated an aqueous solution bearing a known concentration of the substance to be measured to provide a reference calibration medium as well as a probe washing medium.

Abstract: A modular multi-channel automated medical analyzer device is disclosed, characterized by use of an ion selective electrode and/or enzymatic electrode/wash cell system which permits rapid analysis of various substances of interest contained within undiluted body fluids such as whole blood, serum and/or plasma. The ion selective electrode and/or the enzymatic electrode are disposed upon a probe which automatically axially reciprocates downwardly in a simple manipulative motion between an open-ended reference wash cell and a sample cup bearing the body fluid specimen to be analyzed. The wash cell includes an inlet port and one or more outlet ports through which is circulated an aqueous solution bearing a known concentration of the substance to be measured to provide a reference calibration medium as well as a probe washing medium.

Abstract: A multichannel spectrophotometer has a single radiant energy source formed into a multiplicity of radiant energy beams which are each simultaneously intercepted by segments of a rotary source filter wheel, the spectral radiant energy output selected by each filter segment being directed into a separate source radiant energy conduit and transmitted to a remote sample station where a cuvette containing a sample to be analyzed is located, the radiant energy outputs of each cuvette being directed into a separate detector radiant energy conduit where each conduit is intercepted by a filter segment of a second rotating detector filter wheel identical to the source filter wheel and rotated in aligned synchronism therewith, the spectral radiant energy outputs of each segment of the detector filter wheel being further directed into a separate radiant energy detector and signal processing electronics associated with that sample station or spectrophotometer channel from which the radiant energy signal being detected and

Abstract: A laboratory pump for use with and in combination with a magnetic stirrer drive wherein a magnet field is revolved over a table upon which the pump is placed, said pump being comprised of manually press fitted elements establishing a viewable primer chamber accessible through a transparent cover for filling, and a submersible impeller chamber of circular form in which an impeller spins in equilibrium responsive to said revolving field, there being a central inlet into and a tangential outlet from the impeller chamber.