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:
Oct. 02, 2007
Filed:
May. 04, 2007
Donald Glynn Sims, Houston, TX (US);
Michael James Sims, Tomball, TX (US);
Robert Frank Schmidt, Cypress, TX (US);
David Anthony Schmidt, Houston, TX (US);
John Walton Mccaskill, Jersey Village, TX (US);
Donald Glynn Sims, Houston, TX (US);
Michael James Sims, Tomball, TX (US);
Robert Frank Schmidt, Cypress, TX (US);
David Anthony Schmidt, Houston, TX (US);
John Walton McCaskill, Jersey Village, TX (US);
Expro Americas, L.P., Houston, TX (US);
Abstract
The invention contemplates a strainer based upon a four-way, two-position rotary cylindrical plug valve having a hollow plug. The normal entry port for the sealing plug of the plug valve is a circular radial hole passing from the exterior of the plug into the interior cavity of the plug. The normal exit port for the sealing plug is a regular array of small holes across from and coaxial with the normal entry hole. The ports for the valve body are in two pairs positioned at 90° from each other, with the axes of the ports lying in the same transverse plane as the ports of the valve plug.