US 11,919,219 B2
Controlled pressure enclosure
Robert E. Cree, Conroe, TX (US); and William J. Randolph, Farmington, NY (US)
Assigned to Addex, Inc., Newark, NY (US)
Filed by Addex, Inc., Newark, NY (US)
Filed on Jan. 4, 2022, as Appl. No. 17/568,226.
Application 17/568,226 is a continuation of application No. 16/421,662, filed on May 24, 2019, granted, now 11,241,817.
Application 16/421,662 is a continuation of application No. 14/997,127, filed on Jan. 15, 2016, granted, now 10,391,697, issued on Aug. 27, 2019.
Prior Publication US 2022/0126497 A1, Apr. 28, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B29C 48/88 (2019.01); B29C 48/00 (2019.01); B29C 48/10 (2019.01); B29C 55/28 (2006.01); B29C 35/16 (2006.01); B29C 48/92 (2019.01); B29L 23/00 (2006.01); B29L 31/00 (2006.01)
CPC B29C 48/913 (2019.02) [B29C 48/0018 (2019.02); B29C 48/10 (2019.02); B29C 48/9125 (2019.02); B29C 55/28 (2013.01); B29C 2035/1658 (2013.01); B29C 2035/1666 (2013.01); B29C 48/92 (2019.02); B29C 2948/92514 (2019.02); B29L 2023/001 (2013.01); B29L 2031/7129 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An apparatus for cooling, the apparatus comprising:
at least one enclosure comprising a cavity operable for receiving at least a portion of cooling gas from at least one cooling element and a molten film tube, wherein the at least one enclosure is operable to maintain a predetermined pressure differential between an inside surface and an outside surface of the molten film tube, the at least one enclosure comprising (i) at least one port maintaining a variable exhaust device operable for moving a portion of cooling gas from the cavity through the at least one port to a surrounding atmosphere, and (ii) at least one flow buffer comprising a passage into the cavity, the passage fluidly connecting the cavity to the surrounding atmosphere allowing a flow of gas between the cavity and the surrounding atmosphere.