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.

Date of Patent:
Feb. 17, 2026

Filed:

Mar. 24, 2025
Applicant:

2422353 Ontario Limited, Hampton, CA;

Inventors:

Daniel Gelbart, Vancouver, CA;

Wayne Ernest Conrad, Hampton, CA;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F27B 5/04 (2006.01); F27D 7/06 (2006.01);
U.S. Cl.
CPC ...
F27B 5/04 (2013.01); F27D 7/06 (2013.01); F27D 2007/066 (2013.01);
Abstract

A vacuum oven has a furnace chamber provided in a thermally insulated housing and a retort located within the furnace chamber. The retort has an open end and an opposed distal end. The vacuum oven has a door moveable between a closed position in which the open end of the retort is closed and an open position in which the retort is accessible. The door has a thermally insulated outer side and an inner seal which, when the door is in the closed position, closes the open end of the retort. The vacuum oven has a heating element. The seal includes a compressible graphite. In operation at steady state condition, the distal end of the retort is at a first temperature and the open end is at a second temperature. The second temperature is at least 85% of the first temperature and the first temperature is over 1,000° C.


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