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PMAG can refer to: Presidential Management Alumni Group, non-profit organization; Provisional Military Advisory Group, original name of the Korean Military Advisory Group; A line of polymer rifle magazines manufactured by Magpul Industries
Alternatively it is a short length of pipe with two female National pipe threads (NPT) (in North American terms, a coupler is a double female while a nipple is double male) or two male or female British standard pipe threads. If the two ends of a coupling are of different standards or joining methods, the coupling is called an adapter. Examples ...
Magpul Industries Corporation is an American designer and manufacturer of high-tech polymer and composite firearms accessories like M-LOK.Magpul Industries takes its name from its first product, the MagPul (Magazine Puller), an accessory for the STANAG magazines used by NATO armed forces, which aids users in pulling magazines from pouches.
The hybrid ring coupler, also called the rat-race coupler, is a four-port 3 dB directional coupler consisting of a 3λ/2 ring of transmission line with four lines at the intervals shown in figure 12. Power input at port 1 splits and travels both ways round the ring.
The diagram from Beard's 1897 coupler patent [1]. Janney couplers were first patented in 1873 by Eli H. Janney (U.S. patent 138,405). [2] [3] Andrew Jackson Beard was amongst various inventors that made a multitude of improvements to the knuckle coupler; [1] Beard's patents were U.S. patent 594,059 granted 23 November 1897, which then sold for approximately $50,000, and U.S. patent 624,901 ...
A variety of different kinds of IEC 60320 plugs and sockets. IEC 60320 Appliance couplers for household and similar general purposes [1] is a set of standards from the International Electrotechnical Commission (IEC) specifying non-locking connectors for connecting power supply cords to electrical appliances of voltage not exceeding 250 V (a.c.) and rated current not exceeding 16 A. [1 ...
In a more general context, a coupling can also be a mechanical device that serves to connect the ends of adjacent parts or objects. [1] Couplings do not normally allow disconnection of shafts during operation, however there are torque-limiting couplings which can slip or disconnect when some torque limit is exceeded.
A coupling nut A coupling nut and its orthographic view. A coupling nut, also known as extension nut, is a threaded fastener for joining two male threads, most commonly a threaded rod, [1] [2] but also pipes. [3]