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:
Apr. 17, 1979
Filed:
May. 06, 1977
Donald R Speckmann, Mount Prospect, IL (US);
Gould Inc., Roling Meadows, IL (US);
Abstract
A union bonnet valve wherein the valve body is provided with a female threaded recess for receiving an inverted union bonnet nut securing the bonnet of the valve in the valve body. At the inner end of the threaded recess, the valve body is provided with an outwardly facing sealing shoulder and the bonnet is provided with a complementary inwardly facing shoulder secured in sealing engagement with the body shoulder by the bonnet nut. The valve further includes a stem extending outwardly through the bonnet and a sealing structure at the outer end of the bonnet for movably sealing the stem to the bonnet while yet permitting facilitated servicing of the sealing structure when desired. The metal-to-metal seal of the bonnet to the valve body shoulder provides a high pressure seal.