摘要:
A portable chair apparatus for assisting the user with comfort, storage, and transportation includes a base, a seat with an opening, a storage compartment between the base and the seat, a back support column, a lumbar support piece, a handle, and a light. The back support column is adjustable relative to the seat between an open and closed position. The lumbar support piece is adjustable along the back support column and is sized to fit within the opening of the seat when the back support column is in the closed position. The light is on the top surface of the back support column. The chair can further include a handle having a light directed towards the space in front of the user when holding the chair. Other embodiments are described.
摘要:
A system and method for oyster aquaculture employs a hemispherical, dome shaped, hollow structure that is disposed in tidal or intertidal waters. This structure includes a plurality of small through-holes that allow fluid communication between the interior and exterior of the structure. An oyster seed source is suspended within the interior of the dome structure. The interior and exterior surfaces of the dome structure provide the hard surface required for the attachment of oyster spat and the resulting growth of adult oysters.
摘要:
A sprinkler having a design such that they can be arrayed where the coverage of each exceeds 80 square feet—preferably less than 200 square feet in extra hazard or high piled storage environments up to ceiling heights of 25 feet or greater, including ceiling heights of approximately 30 feet or greater and being adapted to control through the maintenance of the heat release rate for the prescribed period of time established by NFPA-13 standards for what are termed “Extra Hazard” and “High Piled Storage” occupancy in which sprinklers preferably having a K factor of 18-40 through the selective combination of pressure and trigger-speed provide sufficiently large drops of water to permit the same to maintain sufficient size and density after contacting the structural members generally encountered in warehouse-type facilities to be able to penetrate the fire plume. Specifically, in its preferred embodiment if the pressure is 7-10 psi, a diagonal line emanating from the center of the deflector to the edge of the obstruction (A) is greater than 3 times the height or 3 times the width of the obstruction.
摘要:
A fire suppression system is disclosed. The system includes a source of pressurized gas and a source of pressurized liquid. At least one emitter is in fluid communication with the liquid and gas sources. The emitter is used to establish a gas stream, atomize and entrain the liquid into the gas stream and discharge the resulting liquid-gas stream onto the fire. A method of operating the system is also disclosed. The method includes establishing a gas stream having first and second shock fronts using the emitter, atomizing and entraining the liquid with the gas at one of the two shock fronts to form a liquid-gas stream, and discharging the stream onto the fire. The method also includes creating a plurality of shock diamonds in the liquid-gas stream discharged from the emitter.
摘要:
A device includes a switch and a housing. The switch is configured for manipulation by a user. The housing has an interior surface configured to receive an external feature of a handheld controller for a transesophageal ultrasound system. The housing has a plurality of switch positions. The switch is coupled to the housing at one position of the plurality of switch positions.
摘要:
An improved process for forming a PTFE mat is described. The process includes providing a dispersion with PTFE, a fiberizing polymer and a solvent wherein said dispersion has a viscosity of at least 50,000 cP. An apparatus is provided which comprises a charge source and a target a distance from the charge source. A voltage source is provided which creates a first charge at the charge source and an opposing charge at the target. The dispersion is electrostatically charged by contact with the charge source. The electrostatically charged dispersion is collected on the target to form a mat precursor which is heated to remove the solvent and the fiberizing polymer thereby forming the PTFE mat.
摘要:
A system and method for oyster aquaculture employs a hemispherical, dome shaped, hollow structure that is disposed in tidal or intertidal waters. This structure includes a plurality of small through-holes that allow fluid communication between the interior and exterior of the structure. An oyster seed source is suspended within the interior of the dome structure. The interior and exterior surfaces of the dome structure provide the hard surface required for the attachment of oyster spat and the resulting growth of adult oysters.
摘要:
A device includes a first retainer plate, a second retainer plate, a connector link, and a clamp. The second retainer plate has a clearance aperture. The connector link has a first end and a second end. The first retainer plate is coupled to the first end and the second retainer plate is coupled to the second end. The first retainer plate and second retainer plate are in parallel alignment. At least one of the first retainer plate and the second retainer plate are elastically urged to converge. The clamp is coupled to the connector link by a joint. The joint is configured to articulate in at least two degrees of freedom and configured to retain a selected fixed alignment as to the connector link relative to the clamp.