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Robert Andrew Hingson (April 13, 1913 – October 9, 1996) was an American physician who served as the first professor of anesthesiology at the University of Tennessee College of Medicine. Hingson developed multiple medical devices, including the jet injector for inoculations.
Since the late 1970s, jet injectors have been increasingly used by diabetics in the United States. These devices have all been spring-loaded. At their peak, jet injectors accounted for 7% of the injector market. Currently, the only model available in the United States is the Injex 23. In the United Kingdom, the Insujet has recently entered the ...
There is an earlier patent 2821981 issued 1958 for a "MULTI-SHOT INOCULANT INJECTOR INSTRUMENT WITH ADJUSTABLE EJECTION PRESSURE CONTROL" invented by Frank A. Ziherl , viewable on Google patents I actually own one of these units called a "Press-O-Jet" and made by Z&W manufacturing, Wickliffe, Ohio however I don't know if this is the first such ...
Rather than removing the caudal needle after the injection as was customary, the two surgeons experimented with a continuous caudal infusion of local anesthetic. Hingson then collaborated with Edwards, the chief obstetrician at the Marine Hospital, to study the use of continuous caudal anesthesia for analgesia during childbirth. Hingson and ...
In 1946, Hawk produced one of the first all-plastic model kits, the Curtiss R3C-1 racer. [8] Four additional kits (all classic 1930s racers) were added in 1948; the Gee Bee, Howard Ike, Laird Solution and Supermarine S6B. These early kits were molded in acetate plastic, but from 1949 Hawk employed polystyrene in its injection-molding process. [9]
Many notable individuals in the 1960s through the 1990s and beyond created the landscape of modern RC modeling. These included many starting their own companies. The families of many of these individuals lost interest in continuing these businesses. The incoming supply of ARF planes from overseas made it hard to sell kits requiring assembly.
Electronically controlled mechanical fuel injection. The engine control unit (ECU) may be either analog or digital, and the system may or may not have closed-loop lambda control. The system is based on the K-Jetronic mechanical system, with the addition of an electro-hydraulic actuator, essentially a fuel injector inline with the fuel return.
Hush kit for the Pratt and Whitney JT8D-1 through -17 engines Two JT4As installed on a KLM DC-8. A hush kit is an aerodynamic device used to help reduce the noise produced by older aircraft jet engines. These devices are typically installed on older turbojet and low-bypass turbofan engines, as they are much louder than later high-bypass ...