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.

Date of Patent:
Feb. 02, 2021

Filed:

Feb. 04, 2020
Applicant:

Truman R. Davis, Abilene, TX (US);

Inventor:

Truman R. Davis, Abilene, TX (US);

Assignee:

Other;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 19/16 (2006.01); F16F 9/19 (2006.01); F16F 9/34 (2006.01); F16F 9/512 (2006.01); F16F 13/00 (2006.01);
U.S. Cl.
CPC ...
F16F 13/007 (2013.01); F16F 9/19 (2013.01); F16F 9/3405 (2013.01); F16F 9/5126 (2013.01); F16F 2232/08 (2013.01); F16F 2234/02 (2013.01); F16F 2236/045 (2013.01); F16F 2238/026 (2013.01);
Abstract

According to the present invention, there is disclosed a torque impact mitigator including a hydraulic cylinder having a compression end and a rebound end. A piston rod mounted to the piston and extends out from the hydraulic cylinder through the first end cap. A compression spring is compressed when the piston rod is moved out of the hydraulic cylinder and in a relaxed state when the piston rod is moved towards a second end cap. Bores through the piston allow the passage of hydraulic fluid from the rebound end to the compression end of the cylinder. A relief valve is secured to the piston within the rebound end to momentarily reduce the pressure of the hydraulic fluid caused by an instantaneous hydraulic pressure increase due to the initial movement of the piston from the rebound end to the compression end.


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