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:
Nov. 08, 1983
Filed:
Mar. 19, 1982
Applicant:
Inventors:
Robert E Croom, Jr, Lafayette, LA (US);
John D Jeter, St. Martinville, LA (US);
Assignee:
Oil-Well Drilling Control, Inc., Broussard, LA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
73431 ; 33304 ; 73151 ;
Abstract
Apparatus for reducing landing shock for instruments run into earth boreholes through drill string bores and to maintain azimuthal orientation being protected with enclosing structure. An instrument package has a depending spear point for engaging a baffle in the drill string. The spear point encloses a spring and fluid damped shock absorber. The instrument package further includes a second internal fluid damped shock absorber and a spring type rotary shock absorber for the measuring instrument.