Method and apparatus for quickly purging atmosphere gas from bel

Details Method and apparatus for quickly purging atmosphere gas from bel Method and apparatus for quickly purging atmosphere gas from bel

1989-06-12

1990-10-23

Yuen, Henry C.

Heating

Processes of heating or heater operation

Controlling flame position or work atmosphere

432 24, 432205, 432206, F16K 100, F27B 904

Patent

active

049647989

ABSTRACT:
A method and apparatus for vacuum purging bell type furnaces is provided. A vacuum shell unit is provided which is removably emplacible over the inner cover of the furnce and has a vacuum tight seal to the base. A vacuum is pulled both within the inner cover and within the vacuum shell to remove the ambient gas. Nitrogen is then introduced into the inner cover and within the vacuum shell. The vacuum shell is then removed and purging continues within the inner cover either with nitrogen or other desired atmosphere gas, and finally furnace is emplaced over the inner cover to heat treat the work in a conventional manner.

REFERENCES:
patent: 2309700 (1943-02-01), Huff
patent: 2971871 (1961-02-01), Beggs
patent: 3540710 (1970-11-01), Yamagishi
patent: 3603570 (1971-09-01), Galcone
patent: 3832129 (1974-08-01), Derbyshire et al.
patent: 4596526 (1986-06-01), Soliman

Affiliated with

Also associated with

Rating

Method and apparatus for quickly purging atmosphere gas from bel does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for quickly purging atmosphere gas from bel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for quickly purging atmosphere gas from bel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-763438