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US 12,345,343 B2Granted
Anti-seize adjustable regulator
AssigneeRobertshaw Controls Company
InventorsIan Rodgers, Moises Contreras Hernandez
Life of this patent
Estimating the term…
Abstract
A regulating valve having anti-seize characteristics provides a linear drive system intermediate a drive shaft connected to a motor and a lifter connected to the regulator spring. The linear drive system translates the rotational motion of the drive shaft into preferably, linear only motion of the lifter, thereby preventing binding internal to the valve.
Claims14
A regulating valve comprising:
- a drive motor coupled to a drive screw;
- a linear drive system operably coupled to the drive screw having a gear driven by a worm connected to the drive screw with the gear restrained by at least one guide to limit movement of the gear to linear movement;
- a lifter operably coupled to the linear drive system;
- a regulator spring continuously applying a first force against the lifter in a first direction against a valve seat and against a regulator in a second direction throughout a range of lifter motion, the first direction being opposite to the second direction;
- and
- a stop located opposite a portion of the lifter from the regulator spring with the at least one guide extending from the stop towards the lifter, and whereby the linear drive system translates rotational motion of the drive screw to linear motion in the first and second direction without rotation.
3 more elements
The regulating valve of 2 wherein the drive screw rotates the gear and the worm is restrained to linear motion.
A regulating valve comprising:
- a drive motor coupled to a drive screw;
- a linear drive system operably coupled to the drive screw having a gear driven by a worm connected to the drive screw with the gear restrained by a guide contacting the gear to limit movement of the gear to linear movement;
- a lifter operably coupled to the linear drive system;
- a regulator spring continuously applying a first force against the lifter in a first direction against a valve seat and against a regulator in a second direction throughout a range of lifter motion, the first direction being opposite to the second direction;
- and
- a stop located opposite a portion of the lifter from the regulator spring;
- whereby the linear drive system translates rotational motion of the drive screw to linear motion in the first and second direction and the guide assists in limiting rotation of the lifter.
4 more elements
A regulating valve comprising:
- a drive motor coupled to a drive screw;
- a linear drive system operably coupled to the drive screw;
- a lifter operably coupled to the linear drive system screw having a gear driven by a worm connected to the drive screw with the gear restrained by at least one guide;
- a regulator spring continuously applying a first force against the lifter in a first direction against a valve seat and against a regulator in a second direction throughout a range of lifter motion, the first direction being opposite to the second direction;
- and
- a stop located opposite a portion of the lifter from the regulator spring;
- whereby the linear drive system translates rotational motion of the drive screw to linear motion of the gear in the first and second direction of the lifter while preventing rotation being imparted by the drive screw to the lifter and gear.
4 more elements
Dependencies are inferred from the claim text.