Abstract: There is provided a a respiratory gas delivery and sampling system, a gas sampling system, a gas sampling interface and a gas sampling tip that may be used to sample exhaled and/or expired gases from a patient, particularly from a patient who is apnoeic and/or who is receiving high flow respiratory therapy. The gas sampling system comprises a respiratory gas monitor in fluid communication with the gas sampling interface, which comprises the gas sampling tip of the invention. The gas sampling interface comprises a gas sampling conduit and the gas sampling tip is located at a free end of the conduit. The gas sampling interface may be configured to allow the gas sampling tip to be selectively positioned at or in the mouth or a nare of the patient's nose.

Abstract: There is disclosed system for oxygenating a patient in relation to anaesthesia using high flow gas delivery. The system has a flow source, and a controller for determining oxygenation requirements of the patient before or during anaesthesia. A method of oxygenating a patient in relation to anaesthesia using high flow gas delivery is also disclosed. The method determines oxygenation requirements of the patient before or during anaesthesia.

Abstract: A respiratory assistance system can provide high flow therapy to patients. The respiratory assistance system can include a patient interface that can deliver a gas flow to a patient and a gas source that can drive the gas flow towards the patient interface at an operating flow rate. The system can include a controller for controlling the operating flow rate of the gas. The controller can apply multiple test flow rate values in a range as the operating flow rate. For each of the test flow rate values, the controller can measure a patient parameter. The controller can determine a new flow rate value based on the measured patient parameters. Patient parameters can include respiration rate, work of breathing, or any other parameters related to the respiratory circuit.

Abstract: A method and apparatus for modifying an existing style fuel tank to add a fuel pump and a baffle assembly in the tank comprises removing an existing fuel sending unit from a sending unit opening and cutting an access hole in the top of the tank. Fuel supply and return lines, and electrical connections for the fuel pump are routed through a replacement cap for covering the sending unit opening and not up through the hole created for insertion of the pump and baffle assembly. The baffle assembly includes a cup for holding fuel around and over the fuel pickup connected to the fuel pump. The cup may be formed from a compressible material to allow it to be compressed before insertion into the tank through the access opening or it may be assembled inside of the tank from segments inserted through the access opening.

Abstract: A siphoning assembly for a fuel supply system comprises an adaptor body with a pressurized fuel inlet, a suction inlet and an outlet and an outlet passageway connecting the pressurized fuel inlet and the suction inlet to the outlet. A venturi nozzle extends in-line with the pressurized fuel inlet and opens into a suction chamber to create a pressure drop for pulling in fuel from the suction inlet which also opens into the suction chamber. The outlet passageway forming a liquid trap between the suction chamber and the outlet. The siphoning assembly may include a pressure relief valve connected to the pressurized fuel inlet formed as a bypass line of the pressurized fuel supply line. The siphoning assembly may be used in conjunction with an apparatus for modifying a fuel tank to add a fuel pump and baffle assembly which may include one-way check valves.

Abstract: A food handling apparatus adapted to support food items such as pizza, hamburgers, submarine sandwiches, and the like. The apparatus includes a flat surface upon which the food item rests. The apparatus may be collapsible, folding into itself to reduce its footprint as the food item is consumed.

Abstract: A grit removal unit for a wastewater system including a grit removal chamber with a substantially annular vertical wall. A horizontal annular ring above the chamber bottom extends inwardly from the annular vertical wall, with an influent channel extending into the chamber beneath the ring and an effluent channel above the rim and extending out of the chamber. The influent and effluent channels both have inner side walls with a curved portion, with both curved portions extending through an arc of at least 90 degrees within the chamber annular vertical wall.

Abstract: A grit removal unit for a wastewater system including a grit removal chamber with a substantially annular vertical wall. A horizontal annular ring above the chamber bottom extends inwardly from the annular vertical wall, with an influent channel extending into the chamber beneath the ring and an effluent channel above the rim and extending out of the chamber. The influent and effluent channels both have inner side walls with a curved portion, with both curved portions extending through an arc of at least 90 degrees within the chamber annular vertical wall.

Abstract: A grit removal unit for a wastewater system including a grit removal chamber with a substantially annular vertical wall. A horizontal annular ring above the chamber bottom extends inwardly from the annular vertical wall, with an influent channel extending into the chamber beneath the ring and an effluent channel above the rim and extending out of the chamber. The influent and effluent channels both have inner side walls with a curved portion, with both curved portions extending through an arc of at least 90 degrees within the chamber annular vertical wall.

Abstract: A grit removal unit including an influent channel directing wastewater with grit into a round grit removal chamber and an effluent channel receives wastewater output from the chamber. A divider wall extends upwardly between the sides of the influent channel, and gates at the upstream end of the divider wall are adjustable to selectively open channel portions on opposite sides of the divider wall. An output guide member is mounted to allow selective adjustment of output flow opening width “c” to the effluent channel. The output guide member has a horizontal bottom extending from the chamber into the effluent channel across the width of the output opening, and a guide wall extending upwardly from the guide member bottom. The guide wall has a forward end spaced from the chamber annular vertical wall to define the output flow opening width therebetween.

Abstract: A tray assembly for use in a vehicle is provided that includes a platform adapted to have items set on a top surface thereof and a removable fastening assembly that attaches to an arm rest of a vehicle seat assembly.

Abstract: The disclosure relates to the cleaning of oilfield tools made of metal, particularly to the method of reclamation oilfield tools, already used in the mechanical deep-pumping extraction of oil, as well as to the product made with the help of the mentioned method. The method of remanufacturing of standard length rods includes cleaning the rod with at least one cryogen to eliminate environmental contamination and to assist in workplace safety.

Abstract: A grit removal unit including an influent channel directing wastewater with grit into a round grit removal chamber and an effluent channel receives wastewater output from the chamber. A divider wall extends upwardly between the sides of the influent channel, and gates at the upstream end of the divider wall are adjustable to selectively open channel portions on opposite sides of the divider wall. An output guide member is mounted to allow selective adjustment of output flow opening width “c” to the effluent channel. The output guide member has a horizontal bottom extending from the chamber into the effluent channel across the width of the output opening, and a guide wall extending upwardly from the guide member bottom. The guide wall has a forward end spaced from the chamber annular vertical wall to define the output flow opening width therebetween.

Abstract: The disclosure relates to the cleaning of oilfield tools made of metal, particularly to the method of reclamation oilfield tools, already used in the mechanical deep-pumping extraction of oil, as well as to the product made with the help of the mentioned method. The method of remanufacturing of standard length rods includes cleaning the rod with at least one cryogen to eliminate environmental contamination and to assist in workplace safety.

Abstract: A grit removal unit including an influent channel directing wastewater with grit into a round grit removal chamber and an effluent channel receives wastewater output from the chamber. A divider wall extends upwardly between the sides of the influent channel, and gates at the upstream end of the divider wall are adjustable to selectively open channel portions on opposite sides of the divider wall. An output guide member is mounted to allow selective adjustment of output flow opening width “c” to the effluent channel. The output guide member has a horizontal bottom extending from the chamber into the effluent channel across the width of the output opening, and a guide wall extending upwardly from the guide member bottom. The guide wall has a forward end spaced from the chamber annular vertical wall to define the output flow opening width therebetween.

Abstract: A housing for a laser head, the housing including: a bottom cover; a top cover on the bottom cover; a nozzle on a side surface of at least one of the bottom cover and the top cover; and a gas flow path extending from a posterior portion of the nozzle to an inlet in at least one of the bottom cover and the top cover. Also a laser material removal apparatus including the housing, a lathe including the laser material removal apparatus, and methods of using the same.

Abstract: The disclosure relates to the cleaning of oilfield tools made of metal, particularly to the method of reclamation oilfield tools, already used in the mechanical deep-pumping extraction of oil, as well as to the product made with the help of the mentioned method. The method of remanufacturing of standard length rods includes cleaning the rod with at least one cryogen to eliminate environmental contamination and to assist in workplace safety.

Abstract: A grit removal unit for a wastewater system including a grit removal chamber with a substantially annular vertical wall. A horizontal annular ring above the chamber bottom extends inwardly from the annular vertical wall, with an influent channel extending into the chamber beneath the ring and an effluent channel above the rim and extending out of the chamber. The influent and effluent channels both have inner side walls with a curved portion, with both curved portions extending through an arc of at least 90 degrees within the chamber annular vertical wall.

Abstract: An replacement blade knife includes a replaceable blade, a blade holder and a blade lock. The replaceable blade includes an opening adjacent to its base edge. The blade holder includes a blade recess for receiving the replaceable blade and a boss corresponding to the opening in the blade which projects from the surface of the blade recess. The boss has a low portion that is no thicker than the replaceable blade and a raised portion that extends above the surface of the replaceable blade. The blade lock pivots on the blade holder between an opened position for receiving the replaceable blade and a closed position for retaining the replaceable blade. The blade lock also includes an opening for receiving the boss of the blade holder.