| |
 |
|
Class Information
Number: 432/64
Name: Heating > Having fluid curtain at chamber port or work path
Description: Apparatus including structure by which a stream of fluid is directed to sweep across an opening of a heating or combustion chamber to hinder or prevent entry or discharge of gases through the opening.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7514650 |
Continuous infrared furnace |
Apr. 7, 2009 |
| 7018485 |
Apparatus for subjecting rare earth alloy to hydrogenation process and method for producing rare earth sintered magnet using the apparatus |
Mar. 28, 2006 |
| 6805555 |
Composite curtain assembly for continuous furnace entrance and exit |
Oct. 19, 2004 |
| 6776611 |
Oxidation oven |
Aug. 17, 2004 |
| 6474983 |
Heated industrial curtain |
Nov. 5, 2002 |
| 6328558 |
Purge chamber |
Dec. 11, 2001 |
| 6027337 |
Oxidation oven |
Feb. 22, 2000 |
| 5965048 |
Heated chamber including an open wall with a gas curtain |
Oct. 12, 1999 |
| 5868565 |
Method of heat treating articles and oven therefor |
Feb. 9, 1999 |
| 5366409 |
Controlling pouring stream and receiver environment |
Nov. 22, 1994 |
| 5364007 |
Inert gas delivery for reflow solder furnaces |
Nov. 15, 1994 |
| 5336085 |
Multi-layer fluid curtains for furnace openings |
Aug. 9, 1994 |
| 5310338 |
Heat retaining curtains for reheat furnace discharge openings and charging openings |
May. 10, 1994 |
| 5230460 |
High volume convection preheater for wave soldering |
Jul. 27, 1993 |
| 5195888 |
Multi-layer fluid curtains for furnace openings |
Mar. 23, 1993 |
| 5174748 |
Chamber having a hot zone and a cold zone and at least one gas inlet tube |
Dec. 29, 1992 |
| 5125556 |
Inerted IR soldering system |
Jun. 30, 1992 |
| 5090651 |
Gas curtain additives and zoned tunnel for soldering |
Feb. 25, 1992 |
| 4946718 |
Air curtain housing for conveyor mechanism |
Aug. 7, 1990 |
| 4940376 |
Scrap loader for molten metal furnace |
Jul. 10, 1990 |
| 4915622 |
Fluid barrier curtain system |
Apr. 10, 1990 |
| 4898319 |
Ambient air exclusion system for brazing ovens |
Feb. 6, 1990 |
| 4894009 |
Apparatus for contactless sealing of an opening against emerging or entering gas |
Jan. 16, 1990 |
| 4877012 |
Apparatus for producing hot gas for the shrinkage of synthetic resin foils |
Oct. 31, 1989 |
| 4823680 |
Wide laminar fluid doors |
Apr. 25, 1989 |
| 4801262 |
Low velocity air seal |
Jan. 31, 1989 |
| 4767324 |
Transition section for muffle furnace |
Aug. 30, 1988 |
| 4746289 |
Heat treating process, hood for carrying out this process, and its use in heat treating furnaces |
May. 24, 1988 |
| 4696226 |
Fluid barrier curtain system |
Sep. 29, 1987 |
| 4580972 |
Heating apparatus and method |
Apr. 8, 1986 |
| 4551091 |
Method for reducing the volume of atmosphere needed to inhibit ingress of ambient oxygen into the furnace chamber of a continuous heat treatment furnace |
Nov. 5, 1985 |
| 4517448 |
Infrared furnace with atmosphere control capability |
May. 14, 1985 |
| 4460821 |
Infrared furnace with muffle |
Jul. 17, 1984 |
| 4449922 |
Reheat furnace drop out door seal |
May. 22, 1984 |
| 4448616 |
Process for reducing backmixing |
May. 15, 1984 |
| 4371335 |
Zone separator for multiple zone vessels |
Feb. 1, 1983 |
| 4327241 |
Explosion venting means for metallurgical furnace |
Apr. 27, 1982 |
| 4309169 |
Machine parts protecting system |
Jan. 5, 1982 |
| 4298341 |
Industrial oven having air recirculating means for minimizing heat loss |
Nov. 3, 1981 |
| 4160117 |
Arc furnace enclosure |
Jul. 3, 1979 |
| 4135906 |
Sheet heat treating furnace |
Jan. 23, 1979 |
| 4074620 |
Device for preventing the flow of air through an opening between two rooms or spaces |
Feb. 21, 1978 |
| 3988972 |
Gas shielding method for a fuel exchange pool and an apparatus therefor |
Nov. 2, 1976 |
| 3963416 |
Furnace exhaust system |
Jun. 15, 1976 |
| 3957479 |
Glass treating furnace |
May. 18, 1976 |
| 3933595 |
Oven door fume collection system |
Jan. 20, 1976 |
|
|
|
