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A packaged terminal air conditioner ( PTAC) is a type of self-contained heating and air conditioning system intended to be mounted through a wall. [1] The first practical semi-portable air conditioning unit invented by engineers at Chrysler Motors. It entered the market in 1935, and was designed to fit under a window like many modern PTACs.
Self-regulating heater. A positive-temperature-coefficient heating element (PTC heating element), or self-regulating heater, is an electrical resistance heater whose resistance increases significantly with temperature. The name self-regulating heater comes from the tendency of such heating elements to maintain a constant temperature when ...
PTC Inc. (formerly Parametric Technology Corporation) is a computer software and services company founded in 1985 and headquartered in Boston, Massachusetts. The company was a pioneer in parametric, associative feature-based, solid computer-aided design (CAD) modeling software in 1988, including an Internet-based product for Product Lifecycle ...
uaptc.edu. University of Arkansas – Pulaski Technical College (or UA–PTC) is a public technical college in North Little Rock, Arkansas. It is part of the University of Arkansas System and mainly serves the Central Arkansas region, along with Little Rock to the south. The college maintains satellite campuses throughout Pulaski and Saline ...
Resettable fuses - PolySwitch devices. A resettable fuse or polymeric positive temperature coefficient device ( PPTC) is a passive electronic component used to protect against overcurrent faults in electronic circuits. The device is also known as a multifuse or polyfuse or polyswitch. They are similar in function to PTC thermistors in certain ...
PTC Windchill is a family of Product Lifecycle Management (PLM) software products that is offered by PTC. [2] [3] In 2004, as part of their expansion in the area of collaboration tools, they arranged having "a hosted version of Windchill to small- and medium-sized customers." [4] [5] As of 2011, products from its marketer, PTC, were being used ...
A ceramic heater as a consumer product is a space heater that generates heat using a heating element of ceramic with a positive temperature coefficient (PTC). [1] [2] [failed verification] Ceramic heaters are usually portable and typically used for heating a room or small office, and are of similar utility to metal-element fan heaters .
Thermal cutoff. An assortment of thermal fuses. A thermal cutoff is an electrical safety device (either a thermal fuse or thermal switch) that interrupts electric current when heated to a specific temperature. These devices may be for one-time use (a thermal fuse), or may be reset manually or automatically (a thermal switch).