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US 12,674,445 B2Granted
Valves with overdriven protection
AssigneeDaoz International Holding Limited
InventorSheng-Hun Jeng
Life of this patent
Estimating the term…
Abstract
A valve comprises a drive rod, a diaphragm, and a chamber. The chamber contains the diaphragm, and the chamber is blocked by the diaphragm driven to reach a bottom of the chamber. A limiting element encircles the drive rod to contain a section of the drive rod, and the limiting element is configured to prevent the drive rod from being overdriven.
Claims9
A valve comprising:
- a controller comprising:
- a drive rod;
- a diaphragm driven by the drive rod;
- a knob for rotating the drive rod and the knob moves with the drive rod;
- and
- an inner case installed inside the controller wherein the inner case has a through hole for containing a part of the drive rod and a colored ring encircles an upper opening of the inner case;
- and
- a body comprising:
- an opening covered by the controller;
- a chamber containing the diaphragm moving inside the chamber wherein the chamber is blocked by the diaphragm driven to reach a bottom of the chamber;
- and
- a limiting element encircling the drive rod to contain a section of the drive rod wherein the limiting element is configured to be fixed at a position of the drive rod to prevent the drive rod from being overdriven and the colored ring is totally covered by the knob when the diaphragm reaches a position to totally block the chamber.
9 more elements
A valve comprising:
- a controller comprising:
- a drive rod;
- a diaphragm driven by the drive rod;
- a knob for rotating the drive rod and the knob moves with the drive rod;
- and
- an inner case installed inside the controller wherein the inner case has a through hole for containing a part of the drive rod, and a colored ring encircles an upper opening of the inner case;
- and
- a body comprising:
- an opening covered by the controller;
- a chamber containing the diaphragm moving inside the chamber wherein the chamber is blocked by the diaphragm driven to reach a bottom of the chamber;
- and
- a limiting element encircling the drive rod to contain a section of the drive rod wherein a thickness of the limiting element is configured to set a length of the section of the drive rod to prevent the drive rod from being overdriven and the colored ring is totally covered by the knob when the diaphragm reaches a position to totally block the chamber.
9 more elements
Dependencies are inferred from the claim text.