Rotary position indicator for actuator
First Claim
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1. A system, comprising:
- a rotary position indicator configured to couple to a piston of an actuator, wherein the rotary position indicator comprises;
a first shaft and a second shaft in a nested arrangement, wherein the first shaft is configured to couple to the piston and the first and second shafts are configured to transfer linear motion of the piston of the actuator into a first rotational motion; and
a gear box configured to couple to the actuator, wherein the gear box is configured to transfer the first rotational motion to a second rotational motion of a position shaft.
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Abstract
A rotary position indicator is configured to integrate with an actuator, wherein the rotary position indicator includes a first shaft and a second shaft in a nested arrangement, wherein the first and second shafts are configured to transfer linear motion of an actuation component of the actuator into a first rotational motion and a gear box configured to couple to the actuator, wherein the gear box is configured to transfer the first rotational motion to a second rotational motion of a position shaft.
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Citations
15 Claims
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1. A system, comprising:
a rotary position indicator configured to couple to a piston of an actuator, wherein the rotary position indicator comprises; a first shaft and a second shaft in a nested arrangement, wherein the first shaft is configured to couple to the piston and the first and second shafts are configured to transfer linear motion of the piston of the actuator into a first rotational motion; and a gear box configured to couple to the actuator, wherein the gear box is configured to transfer the first rotational motion to a second rotational motion of a position shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of monitoring a position of an actuator, comprising:
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transferring linear motion of an actuating element of the actuator to a first rotational motion; transferring the first rotational motion to a second rotational motion via a gear box coupled to an external surface of the actuator, wherein the second rotational motion is configured to adjust the position of a visual position indicator, and wherein transferring linear motion of the actuating element of the actuator to the first rotational motion comprises coupling an outer shaft of a nested shaft arrangement to a piston of the actuator, and extending a pin of the outer shaft into a spiral slot of an inner shaft of the nested shaft arrangement; and measuring an angular position of a position shaft with a position indicator accessory. - View Dependent Claims (12, 13, 14)
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15. A system, comprising:
a rotary position indicator configured to integrate with an actuator, wherein the rotary position indicator comprises; a first shaft and a second shaft in a nested arrangement, wherein the first and second shafts are configured to transfer linear motion of an actuation component of the actuator into a first rotational motion; and a gear box configured to couple to the actuator, wherein the gear box is configured to transfer the first rotational motion to a second rotational motion of a position shaft, and wherein the gear box comprises a first meter gear coupled to the second shaft and a second meter gear coupled to the position shaft, wherein the first and second meter gears are geared with one another and are disposed crosswise relative to one another.
Specification