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:
Jul. 07, 1981
Filed:
Oct. 25, 1979
William K Murray, Bossier Parish, LA (US);
Tri-State Oil Tool Industries, Inc., Bossier City, LA (US);
Abstract
A junk basket having a housing with cutting means on the lower end thereof and junk retaining means supported within the housing, a valve assembly mounted within the housing above the junk retaining means and including a tubular valve housing valve means for controlling flow through the valve housing, pressure responsive operating means for actuating the valve means whereby the valve means is moved between open and closed positions responsive to the stopping and starting of the flow of drilling fluids through the housing, means providing circulating of fluid through the valve housing and the basket housing when the valve means is closed, cam means for supporting the valve means in open position in one position of the cam means and releasing support from the valve means to allow it to close in a second position and stepping means for actuating the cam means between its first and second positions responsive to the starting and stopping of flow of drilling fluid through the housing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile