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, 1977
Filed:
Feb. 17, 1976
Applicant:
Inventor:
Martin B Jansen, Jr, Ventura, CA (US);
Assignee:
Vetco Offshore Industries, Inc., Ventura, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
285 18 ; 285 85 ; 285308 ; 285D / ;
Abstract
Pipe connectors particularly useful in securing sections of an underwater marine riser together, including a pin received in a box which are secured to one another by a plurality of lock dogs mounted in the box and movable radially inwardly against a portion of the pin by fluid actuated pistons to force the pin and box firmly together, the dogs being retained in position by fluid operated lock pistons. The lock pistons are operated by fluid pressure to shift them to an unlocking position, the fluid actuated pistons being operated by fluid pressure to shift the dogs outwardly and disconnect the pin and box from each other.