The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 21, 1976
Filed:
Oct. 25, 1974
Victor D Molitor, Denver, CO (US);
Other;
Abstract
A purifier which includes round and spiral labyrinth passages in heat exchange relationship with similar passages, the incoming passages leading to and the outgoing passages leading from a container for gettering material heated by electrical heaters. The circumferential walls of the round passages are attached together by angular offsets in opposed positions, preferably at about 45.degree.. The spiral passages are formed by a circumferentially spiral plate with an end wall at each end of each passage. The plates may overhang the end walls, so that the plates can be melted back to fuse with the end walls. Also, the heat applied during such melting and fusion heats the end plates sufficiently to be readily bent into a spiral. A second container for gettering material may be located, with or without heating, along the outward path of the heated gases where the temperature will correspond to a lower temperature for further reaction of the gases with a gettering material. In the event that the purifier is used in association with a glove box or the like in which contaminating materials are being handled, the gettering material may be placed in throw-away cartridges formed by spot welding or tack welding a perforated plate or screen to the ends of a tube or between the periphery of two spaced, parallel, circular plates.