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:
Feb. 02, 2010
Filed:
Sep. 25, 2007
William Armstrong, Salem, OR (US);
William Armstrong, Salem, OR (US);
Other;
Abstract
Sight glass assemblies, pipe assemblies including the same, and methods for assembling pipe assemblies are disclosed. Sight glass assemblies may include an annular body of a transparent material. The annular body may include a peripheral surface, an interior surface defining at least a portion of a fluid path, first and second parallel planar annular surfaces spaced a first distance apart, and at least one passage extending through the annular body from the first planar annular surface to the second planar annular surface between the peripheral and interior surfaces. In some examples, a sight glass assembly may include at least one spacing element, which may include first and second bearing surfaces. The first and second bearing surfaces may be spaced a second distance at least as large as the first distance. In some examples, the interior surface may be chemically resistant to at least one predetermined fluid.