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:
Jun. 05, 1984
Filed:
Jan. 11, 1982
Applicant:
Inventor:
Jeffery E Daly, Houston, TX (US);
Assignee:
Reed Rock Bit Company, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
175229 ; 384 93 ;
Abstract
A valve system is disclosed for use in the lubrication passages of a rolling cutter drill bit, which valve assembly utilizes one or more reed valves to maintain flow of lubricant in a desirable direction.