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:
Feb. 07, 2023
Filed:
May. 03, 2022
Applicant:
Frederic M Newman, Midland, TX (US);
Inventor:
Frederic M Newman, Midland, TX (US);
Assignee:
Other;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B66D 3/26 (2006.01); B66D 3/20 (2006.01); E21B 19/084 (2006.01);
U.S. Cl.
CPC ...
B66D 3/26 (2013.01); B66D 3/20 (2013.01); E21B 19/084 (2013.01);
Abstract
A method for limiting the speed of a hoist mounted to a mobile well service rig involves determining a safe speed limit that ensures the hoist's capable stopping time is less than the maximum allowed time for stopping. In some examples, the maximum allowed time for stopping is based on the wellstring's modulus of elasticity and independent of the hoist's braking characteristics. The capable stopping time, however, is independent of the wellstring's modulus of elasticity and dependent on the hoist's braking characteristics.