Process and device for hot gas welding of plastic sheets with el

Details Process and device for hot gas welding of plastic sheets with el Process and device for hot gas welding of plastic sheets with el

1996-05-10

2000-10-17

Jeffery, John A.

Electric resistance heating devices

Heating devices

Continuous flow type fluid heater

392379, 156497, 156499, 1563046, B29C 6510

Patent

active

061343870

ABSTRACT:
A process and device are used to weld plastic sheets with hot gas. Conventionally for welding with hot gas, the gas was conveyed over an electrically heated body. However, temperature fluctuations occurred that were difficult to correct and the result was a relatively high power consumption. In order to make a precise temperature guidance with a favorable efficiency possible, the gas is blown through a tubular heat conductor (10) with outlet openings (16) in its circumference wall and against a plastic sheet, and the tube body (10) is heated by an electrical current that is controlled by at least one temperature sensor exposed to the temperature of the tube body and/or the hot gas. Preferably, the tube body (10) itself is used as a temperature sensor, while its resistance, which changes with the temperature, is used to control the current intensity.

REFERENCES:
patent: 2175224 (1939-10-01), Slayter
patent: 3311525 (1967-03-01), Fanuzzi et al.
patent: 3380229 (1968-04-01), Nelson
patent: 3409977 (1968-11-01), Johnson
patent: 3582968 (1971-06-01), Buiting et al.
patent: 3606727 (1971-09-01), Davis
patent: 3847540 (1974-11-01), Farfaglia et al.
patent: 4180723 (1979-12-01), Szupillo
patent: 4473432 (1984-09-01), Leader et al.
patent: 4506146 (1985-03-01), Rice et al.
patent: 5196667 (1993-03-01), Gammelin
patent: 5483040 (1996-01-01), Fortune

Affiliated with

Also associated with

Rating

Process and device for hot gas welding of plastic sheets with el does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process and device for hot gas welding of plastic sheets with el, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and device for hot gas welding of plastic sheets with el will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-477475