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An S-shaped trap is also known as an S-bend. It was invented by Alexander Cumming in 1775 but became known as the U-bend following the introduction of the U-shaped trap by Thomas Crapper in 1880. The U-bend could not jam, so, unlike the S-bend, it did not need an overflow. In the United States, traps are commonly referred to as P-traps.
In the U.S., every plumbing fixture must also be coupled to the system's vent piping. [1] Without a vent, negative pressure can slow the flow of water leaving the system, resulting in clogs, or cause siphonage to empty a trap. The high point of the vent system (the top of its "soil stack") must be open to the exterior at atmospheric pressure.
Title 18 of the United States Code defines a trap and trace device as follows: . The term "trap and trace device" means a device or process which captures the incoming electronic or other impulses which identify the originating number or other dialing, routing, addressing, and signaling information reasonably likely to identify the source of a wire or electronic communication, provided ...
If the difference between trap and band is smaller than the thermal energy k B T it is often said that it is a shallow trap. Alternatively, if the difference is larger than the thermal energy, it is called a deep trap. This difference is useful because shallow traps can be emptied more easily and thus are often not as detrimental to the ...
This page was last edited on 8 July 2010, at 17:55 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply ...
A high-growth, rapid innovator like Apple (AAPL) is hardly the sort of stock you'd expect to find in a value investor's portfolio. Nevertheless, value investing guru Bill Nygren runs a mutual fund ...
Pony trap in Brisbane, Australia, 1900. Pony and trap in northern England.. Trap_or_cart,_c_1903. A trap, pony trap (sometimes pony and trap) or horse trap is a light, often sporty, two-wheeled or sometimes four-wheeled horse- or pony-drawn carriage, usually accommodating two to four persons in various seating arrangements, such as face-to-face or back-to-back.
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