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:
Dec. 12, 1978
Filed:
Apr. 30, 1976
Applicant:
Inventor:
Walter H Moller, Bellevue, WA (US);
Assignee:
Western Gear Corporation, Everett, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
214-25 ; 175 85 ; 214 / ; 214 / ; 214 94 ; 214152 ; 214340 ;
Abstract
Various pipe handling systems including bridge crane and swing crane embodiments for storing and moving small diameter drill pipe, larger diameter casing pipe and still larger diameter riser pipe to and from a common axial transport means between a drilling rig platform and storage racks. Unique components of the systems include a piggyback riser and casing skate, spin rolls for uncoupling the pipe located between the racks and the axial transport means, and a modular stabber which can accommodate all three basic sizes of pipe.