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:
Oct. 13, 2020
Filed:
May. 25, 2017
Applicant:
Forum Us, Inc., Houston, TX (US);
Inventors:
Arno Gruess, Klein Nordende, DE;
Frederik Stoldt, Hamburg, DE;
Assignee:
FORUM US, INC., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 19/04 (2006.01); E21B 19/07 (2006.01); E21B 41/00 (2006.01);
U.S. Cl.
CPC ...
E21B 19/04 (2013.01); E21B 19/07 (2013.01); E21B 41/00 (2013.01);
Abstract
An elevator system that supports a tubular member includes an elevator movable between a first elevator position and a second elevator position. A mechanical signal mechanism is coupled to the elevator. A valve is coupled to the mechanical signal mechanism. The mechanical signal mechanism is configured to transmit a mechanical signal by a mechanical control cable to move the valve into a valve position to send a valve signal that the elevator is in the second elevator position.