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:
May. 19, 2026
Filed:
Apr. 04, 2024
Luxwall, Inc., Ypsilanti, MI (US);
Scott V. Thomsen, Glen Arbor, MI (US);
Christian Bischoff, Maumee, OH (US);
LuxWall, Inc., Ypsilanti, MI (US);
Abstract
A vacuum insulating panel may include: a first substrate; a second substrate; a plurality of spacers provided in a gap between at least the first and second substrates, wherein the gap is at pressure less than atmospheric pressure; an evacuation tube for evacuating the gap and which may extend at least partly into one of the substrates or be otherwise mounted/supported; and an evacuation tube seal at least partially surrounding the tube. A glass composition of the evacuation tube may contain a high amount of total iron (including oxides thereof) to improve the tube's tip seal. A tip seal, at an end and/or tip portion of the tube, may include a first side including a convex surface and/or a second side including a concave surface.