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. 14, 1992
Filed:
Sep. 27, 1990
Roderick D McLeod, Edmonton, Alberta, CA;
Albert Roesch, Red Deer, Alberta, CA;
Other;
Abstract
A novel adapter and pin assembly allows the close attachment of a high pressure pumping array of valves to the low pressure tubing or casing head on the well. This allows high pressure fluids or gases to be pumped through the low pressure tubing or casing head, into the tubing and down the well while isolating the low pressure tubing or casing head from these fluids or gases. The high pressure seals are tested prior to the start of the high pressure pumping, and the low pressure fittings are protected and monitored by suitable vents.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile