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:
Aug. 08, 2023

Filed:

Mar. 03, 2021
Applicant:

National Technology & Engineering Solutions of Sandia, Llc, Albuquerque, NM (US);

Inventor:

David W. Raymond, Edgewood, NM (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 4/10 (2006.01); E21B 17/07 (2006.01); E21B 19/086 (2006.01); E21B 21/01 (2006.01); E21B 4/02 (2006.01); B06B 1/18 (2006.01); F01B 1/06 (2006.01);
U.S. Cl.
CPC ...
E21B 4/10 (2013.01); E21B 17/076 (2013.01); E21B 19/086 (2013.01); E21B 21/01 (2013.01); B06B 1/183 (2013.01); E21B 4/02 (2013.01); F01B 1/0644 (2013.01);
Abstract

A ball transfer mechanism for a harmonic drive and linear piston motor is disclosed. The ball transfer mechanism includes a spherical ball and a cylindrical seat portion. The seat portion defines a hemispherical shaped recess with a contour for receiving the ball. The ball transfer mechanism is in an exterior wall of a housing for converting rotary motion to linear motion, driving a linear piston motor. The harmonic drive drives a rotor of the linear piston motor. The harmonic drive includes a hollow cylindrical coupler portion engaging a rotor portion for transferring torque to the rotor portion. Transfer mechanisms disposed along a housing wall of the linear piston motor engage the coupler portion. The coupler portion includes harmonic cam grooves for receiving spherical balls in the ball transfer mechanism that drives rotational motion in the rotor in response to axially linear movement of the piston assembly.


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